MicroConverter系列产品 - 精密模拟微控制器

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MicroConverter系列产品 - 精密模拟微控制器

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MicroConverter系列产品 - 精密模拟微控制器

作者：admin 文章来源：Internet 点击数：更新时间：2007-1-22

主题:MicroConverter系列产品 - 精密模拟微控制器

在线问答:

[问：jackychen1973] 与标准传感器直接连接，例如电阻温度检测器（RTD）、热电偶等…

[答：Charles] Please refer to the ADuC836/34 data sheet on www.analog.com that you can find the ciscuits there. [2004-1-15 10:33:56]

[问：cuiweiwei] PLease tell me how to solve the problem of EMI radiation and ESD immunity during the running of the MCU by both software and hardware methods, thanks.

[答：Eamon] In order to minimize the EMI output from the device the ALE output can be turned off in software. Also by running the core at a lower frequency EMI emissions can be reduced, this is programmable via the PLLCON SFR.

For ESD all our parts are specified for a minimum of 1.5kV immunity, in hardware protection zener diodes can be placed on inputs to prevent ESD damage from voltages above this. [2004-1-15 10:36:03]

[问：li_yanqiang] I want to know the power dissipation and price of this series product, and the precision of the ADC and DAC?

[答：Charles] Please contact our local office or call 800-810-1742 for the help. [2004-1-15 10:38:03]

[问：slwoo] Most of the time microconverter is idle.Analog circuit doesn"t run.  Can I turn off analog power supply while microconverter  is still running in order to save power?

[答：Eamon] For the SAR microconverter parts the AVdd must be kept within 0.3V of the DVdd, thus you cannot turn off the AVdd when the core is still active. What you can do is powerdown the analog circuitry such as the ADC, DAC and reference, this will minimize the AVdd current. [2004-1-15 10:38:15]

[问：fallrain116] ADuC845可以用51系列单片机开发工具编程里面的flash ROM吗？

[答：Wayne] Yes, you can use it to edit and compile the program, but you need "downloader" tools to download the program to the flash, and other ADI software for on-line debug, You can call 800-810-1742 for the tools. [2004-1-15 10:38:33]

[问：yyfliu] ADuc824和MSP430F449/135等相比哪个更适合自动数据采集及控制设备，ADUC824的优越性在哪里？如何用AD824构建低噪声，高共模抑制及低失调和漂移的传感器放大器，有几种推荐方法？

[答：LiaoWS] ADuC824 has better analog performance than MSP430. eg resolution, SNR, ...

For the AD824 application, you can refer to its datasheet. Also, you can call the toll-free number 800 810 1742 to discuss your application. They will be very happy to talk with you. [2004-1-15 10:40:03]

[问：qin] 请问ADuC中的MCU工作速度有多高?外接时钟还是有内部时钟?

[答：Charles] ADuC841 can work at 20MHz. And, it integrated the PLL that you just need to provide 32.574KHz to it and you can up to 20MHz. [2004-1-15 10:41:08]

[问：weichun_li] 请问：精密模拟微控制器自身有没有带恒流源输出？如果我想测量温度和湿度（用干湿球方法），温度精度为±0.05℃,(用PT电阻),可以实现吗?

[答：Mariah] For the first question,most of sigma delta MicroConverter parts have internal current source,such as ADuC816,ADuC824,ADuC834.

For the second question,RTDs are very accurate. The accuracy of the PT100 is 0.1ohm. The specified maximum tolerance of the RTD is
±(0.5+0.005T) where T is the temperature in °C. This yields a worst case accuracy of <1°C. Typically the temperature
measurment is accurate to 0.5°C. [2004-1-15 10:41:13]

[问：bossnb] 请问贵公司的精密模拟微控制器与51系列的单片机相比有哪些不同，还有是否兼容？

[答：Dell] ＡＤＩ的微控制器与51系列的单片机的不同点：
１它是数模混合的单片机，业界首款集成了１２ＢＩＴＡＤＣ／ＤＡＣ的单片机
２Ｃ５１与汇编语言编程
３在系统编程
４丰富的资源，如ＳＰＩ／Ｉ２Ｃ、ＰＷＭ [2004-1-15 10:41:49]

[问：yr] adi的mcu的抗干扰如何。adc的精度与稳定度好吗，转换速度是多少。

[答：LiaoWS] The interference immunity of ADI MicroConverter is strong. You cna see from the presentation that our ADC resolution and stability is good compared to the discrete parts, which is the lead in the industry. The conversion rate will different for different models. eg. ADuC814 is 247KSPS@12 bit SAR, ADuC845 is 1.3KSPS @ 24-bit Sigma-Delta. [2004-1-15 10:43:21]

[问：agilite] 1、请问AD公司的精密运放的最低噪音能做到多少？
2、 AD624在使用过成中怎样才能把它自身的噪音做到最小。而且又能得到5~20倍的放大倍数？
3、 AD公司的精密模拟微控制器我没有用过，请问和市场上的竞争对手产品想比较有什么优势？它主要运用于哪些场合？
4、 AD公司的精密模拟微控制器的价格定位是多少？

[答：Charles] 1. AD8671 can achieve 2.8nV/root Hz
2. Please contact out local office for more details.
3. High precision and easy to use
4. under USD$7.0 [2004-1-15 10:45:25]

[问：myawymwb] 该系列微控制器能否用在4-20mA系统？是如何解决低功耗问题的？有没有HART协议的解决方案？

[答：Jing] Yes the Microcnverter can apply in 4-20mA system. You can use the DAC and PWM output to realise the function. We have seval low power consumption mode in the device such as the stand by mode . [2004-1-15 10:46:14]

[问：tiandata] 请问DNL INL（对运放和ADC及DAC）的意义，我看了定义搞不清楚。什么时候需注意DNL，什么时候需注意INL？尽管有那么多参数，ADC的位数一般比要求高两位的ADC即可，这么说我就不用在乎DNL和INL了，是吗？

[答：Mariah] INL = Integral Non-Linearity (Relative Accuracy): . Good INL is required for Open Loop systems and many Closed Loop systems.
DNL = Differential Non-Linearity: a DAC with a DNL > -1LSB is Monotonic – the output always increases as the code increases, which is very important for Closed Loop systems.
The INL and DNL is not the same concept as the resolution of ADC. You can dial 800-810-1742 to get for help from china application center. [2004-1-15 10:46:29]

[问：223689] 4~20ma信号能否直接连接到aduc系列？

[答：Jing] You can input the 4-20mA signal into the device .Please refer topage 24 of this presentation.Thanks! [2004-1-15 10:48:12]

[问：russot] 是几位的微控制器，价格是什么范围？面向什么市场应用场合？
存储体的配置情况？支持C语言开发吗？支持IAP吗？

[答：Wayne] Present series is with 8bit MCU. As we"ve different product (different ADC, flash memory from 8K to 62K), the prices are different.
As it"s systome on chip concept, Microconvertor has very wide applications: industrial & instrument (temperature, pressure, voltage, current......), communication (like power measure and control), medical equipment.
We"ve different products with 8K, 32K, 62K program flash.
Yes, Microconvertors support C program, and ADuC83x support IAP. [2004-1-15 10:48:30]

[问：223689] PGA的噪声会不会影响ADC的精度？

[答：Mariah] Yes, the noise of PGA will influence the system accuracy. The noise performance of ADC depends on itself. [2004-1-15 10:48:40]

[问：269237] ADuC834通过WSD V6.02可下载代码再长为多少? 多少K.

[答：Eagle] ADuC834 has 62k Program flash, 62k is the MAX length. [2004-1-15 10:49:16]

[问：liuxj] 与TI的MSP430相比，在电表上的应用，ADUC有什么优势？

[答：Charles] ADuC8xx provide better accuracy on the ADC that can achieve better I/V accuracy and ADuC84x is fast than MSP430. [2004-1-15 10:50:04]

[问：snowless] 与业界同类产品相比，MicroConverter系列产品有什么优势和不足之处？

[答：Dell] 优势：单片集成数据采集系统，ＩＣＰ，高精度ＡＤＣ／ＤＡＣ
不足：知道的人不够多 [2004-1-15 10:50:11]

[问：chenqs] aduc通过串口调试，如何确保调试的实时性？

[答：Wayne] "Debug" and "work" status is different status. [2004-1-15 10:51:15]

[问：qzhu] 硬件干扰防范设计注意事项

[答：LiaoWS] 1. Good layout, especially the grounding
2. Shielding if necessary
3. Use diodes/resistors to protect your boards.

Anyway, it should be discussed case by case. Call 800 810 1742, please. [2004-1-15 10:51:31]

[问：223689] aduc系列与ti的msc系列相比，优势再哪里？

[答：Eamon] The ADuC sigma delta parts feature a higher perfomance ADC which has better noise perfomance vs Vin, lower DC offset and gain errors and a higher ENOB [2004-1-15 10:52:41]

[问：liufreedom] 基本价格如何？

[答：Dell] 不同系列及不同资源，价格不同，请联系相应的代理商或登陆ADI网站 [2004-1-15 10:52:42]

[问：leonwangmeng] SAR和Sigma－Delta两种转换器相比，哪个速度更快？

[答：Charles] SAR is faster but Sigma-delta can get more accuracy (bits). [2004-1-15 10:53:16]

[问：chenzhong] 可以在嵌入操作系统下开发吗？比如UCOS

[答：Eamon] ADI does not have a specific RTOS for the MicroConverter however an RTOS that is desinged for a standard 8052 could modified to run on a MicroConverter since it uses an 8052 core. [2004-1-15 10:53:57]

[问：qin] 请问ADuC中的12位SAR ADC的取样频率多高?是否可编程?如何解决温度漂移问题?

[答：Mariah] ADuC814 is 247KSPS. ADUC831/2 is 247KSPS. ADUC841/2/3 is 420KSPS. They are probrammable. THe way to solve the temperature drift is to use ratiometric method. [2004-1-15 10:56:24]

[问：lps1999] ADUC847的10个输入能否作为5对差分输入?

[答：Eagle] 可以! 参考Datasheet Rev. PrG | Page 29 of 69.
There are two modes of operation for the ADC differential or pseudo -differential. [2004-1-15 10:58:54]

[问：alexshao] 请从性能（与CY的PSoc系列），价格（与Microchip的PIC系列），功耗（与TI的MSP430系列）比较ADuC的综合优势

[答：Jing] We have better performance than CY"s PSoc serials such as the resolution of ADC, single pin emulator , temperature senson and PWM output etc.I don"t Know the exact price of the PIC serials .But we have  better performance than PICserials. The power consumption of ADuC serials is the same as the MSP430.But we have seval power saving mode. Thanks! [2004-1-15 10:59:01]

[问：seuic] UART编程是怎么回事，如何实现?

[答：Wayne] You can build a RS232 interface with ADM232/202, and connect the board to your computer with serial interface. Then you can use WSD to download your compiled program. [2004-1-15 10:59:31]

[问：zhong2008] ADuC824/834/836的AD转换速度最高是多少?另外DA只能有12BIT，在我们目前的系统中可能不够用，能否有更高位数的DA芯片？

[答：LiaoWS] ADuC824/34/36, the highest sample rate is 105Hz. We don"t have the parts that have the DAC having 12 bits higher. Maybe you have to use exernal DAC. If you need any help, please contact us via 800 810 1742 or china.support@analog.com. But don"t use sina.com mailbox, because we cannot reply your mail to this mailbox. [2004-1-15 10:59:46]

[问：94196] ADI的模拟地和数字地是在芯片内部连上了,还是要在外部连?

[答：Eagle] 一般没有, 在外部单点接地(低频)或多点接地(高频). [2004-1-15 11:00:40]

[问：fqg7908] 请问为什么ADUC812的ADC转换经常会出现检测值偏大/偏小10%。（我遇到很多次了）

[答：Eamon] This could be down to a number of factors, such as power supply noise, noise on the input signal or layout issues. The best way to check the perfomance is to use a battery as a supply (giving a low noise supply) and also use a 1.5V battery as a DC input. This should allow you to identify the source of the error. [2004-1-15 11:01:25]

[问：leonwangmeng] 此控制器可以与哪几种传感器相连接？可以应用于哪些方面？

[答：Dell] 可以与多种传感器相连。可以用在单片机面向的或数据采集领域。 [2004-1-15 11:01:46]

[问：laitim] 我遇到一个非常挠头的问题,也去找过贵公司的技术支持,AD7490的VREF无法稳定,1分钟左右就把芯片烧损,不知道是什么原因,包括爱尔兰的开发板制作者也未能解决,不知道贵公司能以何种方式帮助我们解决这个问题.另外,归公司本次发布的产品是否有可以代替的?

[答：LiaoWS] We haven"t encountered such problem during test. Your problem is on the way, we will try to find the problem. [2004-1-15 11:01:58]

[问：wffae] 请问如用外部基准参考电压，如何作到高稳定度，常用的基准参考电压芯片有那些？稳定度PPM是如何计算的？thanks!

[答：Mariah] AD780 is highly recommended for the reference selection. It is a ultra precision reference with temperature compensation. The drift performance depend on the reference itself. [2004-1-15 11:02:19]

[问：luoeamer] 请问：贵公司如何测定A/D，D/A的精度，稳定度的？谢谢

[答：Eagle] 需要用专用仪器. ADuC834系列可以自校准. [2004-1-15 11:02:33]

[问：fjddxx] 如果我用ADuC824来做低功耗系统，需要考虑些什么，他能做到多低，与现在普遍使用的MSP430有什么优势？

[答：Wayne] Normal mode power: 3mA @ 3V,
Power down mode: 20uA @ 32KHz crystal [2004-1-15 11:02:39]

[问：zxy_hot] 使用ADuC系列，用哪种产品能实现400HZ正弦波输出？

[答：Jing] Most of our ADuC serials devices can output 400Hz sine wave such as ADuC841/2/5 etc [2004-1-15 11:02:42]

[问：wguyang1210] 在研发中，所用的是否大都是汇编语言，来满足高速的要求；在解决高速率问题上，还有什么其他方案？多谢！

[答：Dell] 汇编语言或C51都可以，可用单指令周期的ADuC84X或ARM核的ADuC702X来满足高速的应用。 [2004-1-15 11:03:34]

[问：李华] aduc834支持外部数据和程序存储器吗

[答：Dell] Yes [2004-1-15 11:03:43]

[问：麦子坪] 1.请问DAC有哪几种输出?有没有直接4-20mA输出?

[答：Charles] Normally, the CMOS DAC could not output such high current. The DAC you can see in the market can support voltage and current output (up to few mA). You have to use external transistor to get the current up to 20mA. [2004-1-15 11:03:43]

[问：MCU6894] 请问：我在设计一款电池供电的煤气表校验仪，需要测试流量和压差，A/D转换需要24位的，最好5V供电，哪款芯片最适合我？

[答：Mariah] ADuC834 is the suitable part. It is a 24bits sigma-delta ADC with 8052 core and 62K bytes code memory. [2004-1-15 11:05:04]

[问：charlie22] 我的ADuC812用串口通讯时容易烧片子，何解？

[答：Wayne] ADuC812 UART port is very stable.
Please make sure your RS232 interface (the RS232 part) work in the spec"d range. You can call 800-810-1742 to give the detailed schematics, then we can help you to check the problem. [2004-1-15 11:05:29]

[问：张振坤] ADuC能直接和传感器连接吗?它对传感器的输出阻抗有何要求?对小信号传感器是否要加接放大器?它的最低噪音容限是多少?

[答：LiaoWS] You can connect sensors to MicroConverter directly if the voltage won"t be too high. There is no ristriction to the sensor impedance, because we have the built-in buffer in chip, eg ADuC824. For weak signals, you have to let us know it in the voltage, eg mV/uV/nV? Our MicroConverter can have the input voltage range of 10mV. For the noise, this is a system consideration, if the SNR is good enough for your system, just use it. Any technical support needed, feel free to contact 800 810 1742. [2004-1-15 11:05:49]

[问：laitim] 我需要同步采样,采样的路数是32通道,如果没有采保,可用多片ADUC84X来实现,我想请教主持人,该系列产品最高转换速度是多少,是那一种型号

[答：Mariah] The fastest ADUC84X part is ADUC841/2/3. The sample rate is 420KSPS. They are 8 channel 12bit ADCs. [2004-1-15 11:07:56]

[问：lijingzhou] 如何实现远距离的1000点以上的温度测量，有没有好的方案。

[答：Jing] You can use our Tmp05/06 to measure temperature. TMP05/06 can be daisy chain mode and one of my customer have realise 200 meter temperature measurement. You can also use our ADT7416 for remote temperature measurement. For ADuC serial,You can use it to sample the data and process the data far from the temperature sensor.Thanks! [2004-1-15 11:08:06]

[问：seuic] ADuC8xx可不可以外扩RAM？

[答：Mariah] Yes. [2004-1-15 11:08:36]

[问：zhuxs2003] 该微控制器是否需要专用仿真器，如采用贵公司开发环境能否支持单步运行，并可查看内部时实变量资源。谢谢！

[答：Wayne] If you only use assembly, no special emulator is needed. With the develop tools (you can check 8008101742 for it), you can do programing through UART with RS232 interface. Our debug tools support single-step process, and simulator tools can support real-time monitor on reigsters. [2004-1-15 11:09:23]

[问：张振坤] 微控制器中的ADC动态范围有多大?误码情况如何?线性误差有多大?

[答：Eamon] I am presuming you are referring to the SAR ADC based parts.
The ADCs dynamic range will depend on the Vref, if using the internal 2.5V reference it is 0V to 2.5V, an external reference up to 5V can be used giving a dynamic range of 0 to 5V

There are no missing codes on the MicroConverter parts.

The INL and DNL specifications are +/- 1 LSB MAX for INL and +/- 0.9 LSB MAX for DNL. [2004-1-15 11:09:23]

[问：173551] KSPS的意思？

[答：Charles] Kilo Sampling Per Second [2004-1-15 11:09:44]

[问：neimr] would you like to tell me what"s the highest frequence of pwm in ADuC845/847/848

[答：Eamon] The highest frequency of the PWM is half the core clock, thus with maximum core clock of 12.58MHz the max PWM output is 6MHz. [2004-1-15 11:10:44]

[问：007973] 现在很多单片机都使用JTAG接口进行仿真调试,不知ADUC是否支持

[答：Charles] Not in the ADuC8xx series but on the next generation ADuC7xxx (ARM-7 core) processors. [2004-1-15 11:11:14]

[问：samire] 微控制器中的ADC的输入有无差分输入的?

[答：Mariah] All the sigma delta MicroConverter devices have differential input. ADuC816/824/834/836/845/846/847 [2004-1-15 11:12:00]

[问：millionliu] ADμC831中，关于PWM的model4和model6的DAC的机制是什么？它能代替数模转换器吗？需要加什么外围电路？

[答：LiaoWS] The PWM model 4/6 is just like a Sigma-Delta DAC. You can find the detailed description in page 37 of the datasheet. They can be used as the DAC. Use low-pass filter should be OK. [2004-1-15 11:12:04]

[问：汉山] 请问你们有什么方法扩展A/D采样的路数？
你们的MCU的工作温度都是在工业级的吗？

[答：Jing] We have ADuC845 with 10 ADC input channels. If you need more ADC channel,there are two method:
1. use a MUX outside the ADuC such as ADG732
2.adopt our ARM core microconverter such as ADuC7026 ,it has 16 ADC channel [2004-1-15 11:12:11]

[问：qin] ADuC有没有PWM输出?驱动能力有多大?用来控制马达,如何加接后驱动电路?

[答：Dell] 驱动能力不大，约几百uA;请加专门的马达驱动模块 [2004-1-15 11:12:57]

[问：王辉888] 请推荐：用于0.1mA以下电流场合检测的微转换最实用电路。

[答：Eagle] 用很小的电阻转换为电压信号, 使用仪表放大器如AD623或AD8221,再用ADuC834或其他微转换器.请同ADI或代理本地办事处联系. [2004-1-15 11:12:58]

[问：870691] 如要测量人体温度（红外线）前置用什么放大器较适宜

[答：Charles] AD8628(5uV offset) and AD8603/07/09 (50uV offset butvery low cost) are the good choice. [2004-1-15 11:13:04]

[问：麦子坪] 请问在某些场合需要将A/D通道隔离输入时其内部能否实现? 因为通常在输入端用线性光耦做隔离时其精度很难保证,而且对于多路模拟输入时硬件工作量太大.

[答：Charles] You can use ADuM1400 on this application. It can up to 100MHz. [2004-1-15 11:14:07]

[问：xuliange] 贵公司的开发工具--如编程器、在线仿真器等在哪里可以购买？价格如何

THANKS YOU！

[答：Mariah] If you use UART port to debug, you can do it by yourself. The software can be downloaded from ADI website freely. If you use single-pin emulator, you can buy it from the distributor named superfly in Shenzhen. Please contact David Liu, 0755-83165141/2/3 [2004-1-15 11:14:26]

[问：fqg7908] please tell me why the ADUC812"RAM and DAC can not be saved duaring the reset process

[答：Jing] It"s depend the working principle of the device.During the reset process all the RAM and DAC will be initialized . But you can save the data before the reset process . [2004-1-15 11:14:56]

[问：王辉888] 哪一种微转换器最适合用于智能传感器？希望价位比较低一些。

[答：Charles] AuC814(12 bits) is the lowest cost we can offer now. Please contact our local office for the samples. [2004-1-15 11:15:40]

[问：samire] Delta-Sigma和SAR ADC在AduC中,除了精度不同外,还有其它区别吗?

[答：LiaoWS] The diffrence between the S-D based MicroConverter and SAR based ADC is the same as the difference between S-D ADC and SAR ADC. Normally, S-D ADC has higher resolution, but lower conversion rate, and will have processing delay. SAR ADC will be faster and no conversion delay. For other differences between these two kinds of MicroConverters, the DAC resolution and some other features, eg excitation current. Refer to their datasheets, please. [2004-1-15 11:17:25]

[问：yyfliu] How can I extend the dynamic input signal voltage of the ADuc8xx series MCU"s ADC module,not constraint in 0-vdd-0.3v?

[答：Eamon] This can be done using some signal conditioning on the input using a low noise op-amp. This can be used to divide down or scale up the input signal as required. [2004-1-15 11:17:55]

[问：zelog] 请问ADuC中的SPI工作比特率是多少？

[答：Dell] 可达1Mbps [2004-1-15 11:18:01]

[问：zhaohuoc] 请问ADI公司是否有多至12个差分通道的MicroConverter产品开发计划或对此类应用有较好的解决MicroConverter产品方案.使用多片MicroConverter芯片是否为较合理的方案? 谢谢.

[答：Mariah] We don"t have this plan by now. It is not reasonable to use multi chip Microconverter because the MCU resources are wasted. [2004-1-15 11:18:08]

[问：geatty] 它可以与哪些标准传感器直接连接，与压力传感器或光电传感器可以直连吗？

[答：LiaoWS] This is decided by the sensor specs. If the output voltage of the sensor is in the range of the MicroConverter ADC voltage range, just use it. For technical support, call 800 810 1742. [2004-1-15 11:18:57]

[问：wffae] 请问在用模拟开关来扩冲DA输出通道时，应注意些什么？

[答：Charles] The Rds-on of the analog SW and the noise the SW can generate. [2004-1-15 11:19:04]

[问：269237] The softsize 50K bytes,CPU is ADuC834,I can"t used WSD V6.02 download. Why?

[答：Eamon] Depending on your PC configuration you may need to use V6.03, contact ADI to obtain this. It is not available on the website yet. [2004-1-15 11:19:36]

[问：chinawangwu] ADuC系列有DMA吗？

[答：Mariah] SAR Microconverter parts has DMA mode, such as ADuC812/831/832 [2004-1-15 11:19:44]

[问：yeeho] 请问ADuC与原有的高速ADC相比在转换速度上哪个更快？

[答：Charles] Normally, the high speed ADC use different architecture that can achieve over 200MHz. If you are looking for higher speed (over 1 MSPS@12 bits) and I would like to suggest you use external ADC. [2004-1-15 11:20:29]

[问：xiong.gaocai] What is the mean :rail to rail

[答：LiaoWS] Rail to rail means the input/output is almost the voltage of the power supply. For example, if the power supply is GND and +VDD, then the r-r output voltage can be 100mV to VDD-100mV. [2004-1-15 11:21:04]

[问：lanzhu] please tell me which method can program the device.

[答：Wayne] For assmebly, you can use UART (with RS232 interface to your computer), we"ve full tools to support program compiling, dubugging.
For C program, you need a ACE (emulator).
For tools, you can check with 800-810-1742. [2004-1-15 11:21:10]

[问：whmin] 请问64kflash的微控制器，价格范围是多少？

[答：Charles] It should under USD10.0 @ 1K. [2004-1-15 11:21:17]

[问：223689] 刚才Dell先生提到arm核的aduc702x,能提供一些信息吗？

[答：Dell] ADuC702X是ARM7+ADC+DAC+2 I2C +RAM+ROM，主频可达40多ＭＨZ.请将你的联系方式发到我的信箱：dell.chen@analog.com [2004-1-15 11:21:22]

[问：zluo] 在我目前的设计方案中，ADuC831的并行I/O口资源很紧张，是否有对I/O口进行扩展的方法？

[答：Dell] CPLD或8255 [2004-1-15 11:22:09]

[问：seuic] ADuC8xx是可以用自身带的UART接口与PC机相连接来实现目标系统的调试和仿真吗？

[答：Dell] Yes [2004-1-15 11:22:21]

[问：张振坤] ADuC的外设接口有那几种?它的工作电源有几种?数字和模拟电源是否不同而且要分开?

[答：Jing] ADuC has i2c,SPI,UART interface together the conventional GPIO. We have 3V and 5V device. You can seperate the  digital and analog VDD and GND with only one connection pot. You can find the power and ground connection describtion in our datasheet as below:
Although the ADuC812 has separate pins for analog and digital ground (AGND and DGND), the user must not tie these to two separate ground planes unless the two ground planes are connected together very close to the ADuC812. [2004-1-15 11:22:42]

[问：chenza] 该器件能否提供编程调试软件,是否多通道的,对工业环境的干扰抑制多强,能否Email资料参考?

[答：Wayne] Yes, we"ve full set of develop tools.
All Microconvertors can support multi-channel analog input.
For detailed specs, please refer to the datasheet of relative part#, which you can download from www.analog.com.
What"s the materials you need ? Please email to china.support@analog.com for the material. [2004-1-15 11:24:12]

[问：wdf390] 结合我的实际工程应用，我有两个问题：
1，对于多路信号测量，该款芯片有什么样的解决方案？
2，一个具有最基本的功能的该类芯片的价格是多少？以及开发工具的价格是多少？

[答：Jing] 1. you can use the hign channel count ADuC845 for 10 channel measurement.
2. <$3 @100k for ADuC814. $75 for development tools. [2004-1-15 11:24:52]

[问：seuic] ADuC8xx有没有开发板或专用的仿真器？

[答：Jing] Yes ,we have . You can contact with you local sales or call 800 810 1742 [2004-1-15 11:25:36]

[问：lanzhu] 对该系列器件有哪些编程和下载方式?

[答：Wayne] 2 types of Programs: Assembly, and C program
3 Download modes: UART (via RS232 to computer)for serial downloader, parrell downloder, emulator (ACE from Accutron). [2004-1-15 11:26:00]

[问：汉山] 要远距离的温度进行（0-1000），请问如何用一块MCU（要控制风机）来解决？

[答：Mariah] I can not catch what you mean. Please call 800-810-1742 to get help. [2004-1-15 11:26:47]

[问：阿立] ADUC834的仿真器在国内是否有第三方生产商？

[答：Charles] [2004-1-15 11:27:19]

[问：MCU6894] ADu系列单片机是否内部集成了象TLC2400那样的50Hz/60Hz数字滤波器？

[答：Mariah] The sigma delta MicroConverters have the 50Hz/60Hz rejection function. [2004-1-15 11:27:35]

[问：chenqs] 如何仿真aduc的定时器、串口？

[答：LiaoWS] For the serial port simulation, use emulator, please.

For the simulation of the timers, it is decided by which timer you want to simulate. [2004-1-15 11:27:53]

[问：chris_liush] Do you have some plan to develop this kind of microconverter, the simple version of ADuC814, just have some I/O, flash/ee, 2 or 4 channel

[答：Eamon] At the moment we have no plans to do this. [2004-1-15 11:28:20]

[问：zhuxs2003] 请介绍一下贵公司新近推出的基于ARM7内核的微控制器?

[答：Dell] ARM7TDMI MCU Core:
16-/32-bit RISC architecture
45MHz operation (Flash & SRAM)
Embedded JTAG for Debug
Memory Organization
8K Bytes SRAM in 2K X 32 words
62K Bytes Flash/EE in 31K X 16 words
Retention – 50yrs, Endurance – 50K cycles
In-System Programming (ISP) via UART or JTAG Ports
Analog I/O
Multi-Channel 12-bit, 1MSPS ADC
Multiple 12-bit V-Output DACs
20ppm/°C Vref, +3°C Temp Sensor
Uncommitted Comparator

And Much More ……
4 X GP Timers
Programmable PLA
UART, SPI and I2C Serial I/O
Up to 32 Pin GPIO Port
Power Supply Monitor
Three Phase PWM
Other
Specified for 3V operation (5V compatible I/O)
Temperature Range –40°C to +85°C
6X6mm LFCSP to 80-LQFP package options
2mA/MHz current consumption
Low Cost Development System Support
Full Third-Party Support

ARM7
32-bit Reduced Instruction Set Computer (RISC) architecture
Uses a single 32-bit bus for Instructions and Data
Integrates JTAG test port, used for debug access
Operates at 45MHz, single cycle, 32-bit instructions – 45MIPs

ARM7 + TDMI = ARM7TDMI
T – Support for the Thumb (16-bit) instruction set
D – Support for on-chip debug
M – Support for Multiply and Multiply-Accumulate operations
I – Integrates embedded in-circuit emulation

MicroConverter? ADuC702X Development System:
Hardware
ADuC702X Evaluation Board
Keil ULINK USB-JTAG emulator
Power Supply and Serial Cable
Software
Keil ?Vision2 IDE and Debugger (code size limited version)
Stand alone Serial Downloader
PLA tool
Documentation
Example Code [2004-1-15 11:28:21]

[问：yanghui_bj] 请推荐一款适合uC0S嵌入且专用于工业级智能传感器应用的芯片。并介绍贵公司芯片在线性修正、温度补偿、迟滞、数字滤波基本实现方法

[答：Eagle] 可能您需要考虑我们新一代ARM核的微转换器ADuC7020系列, 它有12-bit ADC and DACs, ARM7TDMI ? Core,适合uC0S嵌人. 其他如线性修正等可以用软件处理.为给您提供技术支持，您可以拨我们的免费电话 800 810 1742 到位于北京的中国技术支持中心，也可以发电子邮件到china.support@analog.com，告知您的电话与应用项目.如果要申请免费样片，可以找代理商，也可到我们的网站 www.analog.com 申请。现在ADuC7020有样片和评估版,但需要需要联系ADI local office 才可以. [2004-1-15 11:29:46]

[问：lixiaoyun951] 请问MicroConverter系列模拟微控制器是否具有PWM输出？如果在此期间购买此产品会有哪些技术上的支持？

[答：Mariah] Some of them have PWM output,such as ADuC831/2,ADuC824 etc. You can get technical support by toll-free number 800-810-1742 or email to china.support@analog.com. [2004-1-15 11:30:15]

[问：liyishan] 如果接热电偶,我想问一下它可以接多少路

[答：LiaoWS] This is decided by the parts, resolution requirement and the conversion rate. Eg. ADuC845 can process 10-chan without any external circuits. [2004-1-15 11:30:27]

[问：lijingzhou] I2C是双向的吗？最高速率是？

[答：Eagle] 是,ADuC8xx系列全有,可到1MBPS. [2004-1-15 11:30:31]

[问：94196] ADUC可以外界参考电压吗

[答：Jing] Some part can have internal or external reference such as ADuC645/6/7 ,ADuC834 etc [2004-1-15 11:30:51]

[问：汉山] ADC8XX能不能直接与LCD相连？
谢谢！

[答：Mariah] No, it does not has LCD driver. [2004-1-15 11:31:17]

[问：fjddxx] 请问掉电情况下，哪些数据可以保存，也就是放在哪里的内容不会丢失？

[答：LiaoWS] Only the contents in the flash memory can be saved. [2004-1-15 11:31:35]

[问：yunbo] MicroConverter用的是什么核心，是i51的内核吗？

[答：Jing] We have 12-cycle 8052 core and 1-cycle 8052 core and ARM7 core ADuC serials [2004-1-15 11:32:06]

[问：yuj210] SOC系统内的互相干扰有哪些方法减小？

[答：Eagle] SOC芯片内的干扰由IC厂家解决, 但对外接线需要遵守基本布局布线规则,输入输出分开,有时需要隔离.电源也要干净. [2004-1-15 11:33:49]

[问：wguyang1210] 现在阻碍光网络发展的最大障碍是光缓存问题，从电子设计师的角度，请给出对光缓存开发的几点建议。多谢！

[答：Dell] 光缓存难在光子的捕获与存储，这是当前整个业界的难点之一。请与北邮的教授联系。 [2004-1-15 11:34:23]

[问：866661] Would you please comment the latest techniques and applications of Sigma-Delta ADCs. Especillay, how to improve futher more of the resolution while preserving the stability.

[答：Eamon] As this is quite complex matter I will refer you to the datasheets of the sigma-delta parts for more info on desing techniques.

MicroConverter Sigma-Delta application tend to be industrial based, such as pressure sensing, weigh measurement etc, applications where a high accuracy is required. [2004-1-15 11:34:30]

[问：homer_yao] 如不使用开发系统，有别的途径提供用户程序下载到芯片中吗？

[答：Jing] We present WSD  and Aspire software that can download the programm and you can also select our other third party solutions to download the programm into the devices. [2004-1-15 11:34:46]

[问：haiou_zsl] pwm在该控制器种主要起到什么作用，其中的基准源是采用何种形式提供参考的，谢谢回答！

[答：Mariah] PWM provides DAC output or moto control. MicroConverters have internal reference. As a choise, customer can use external reference. [2004-1-15 11:34:54]

[问：cnycqt] 对于模拟转换中的噪声如何更好的抑止

[答：LiaoWS] This is a big problem. For the noise rejection, S-D based ones has the 50/60Hz rejection. And in order to get better noise performance, good grounding, shielding and other external circuits will be necessary. You can get help from 800 810 1742. [2004-1-15 11:35:16]

[问：wzzny] 请介绍有关温度、湿度、电流、电压等等常用物理量在传感技术与数字仪表、计算机接口方面的解决方案。这里的温度是指0.1℃、湿度是指1％的测量和最短的响应时间。

[答：Charles] ADuC836/34 can be used here and you can use the RS-232 as the communication interface to computer. [2004-1-15 11:35:33]

[问：charlie22] SoC的噪声水平与分立器件构成的系统相比是否要高一些？

[答：Eagle] 主要看你所选芯片.如果你的PCB做得特好,分立器件构成的系统可以更好.SOC的好处是IC芯片厂家邦你解决问题,用户使用方便且有保证. [2004-1-15 11:36:03]

[问：ynh] 1.高速A/D，12位，抗干绕问题
2.高切换速度的，可变增益，精密，高阻抗，高压摆率，0－1M的运放
3.新型的类似于ADUC832的mpu

[答：Charles] ADuC841/42 is the right one. [2004-1-15 11:36:12]

[问：zelog] 请问Dell先生ADuc702X可有ADI认为比较成熟可靠的RTOS？如果有，是什么？

[答：Dell] Now ther"s no RTOS for ADuC702X.But we"ll have it in future. [2004-1-15 11:36:38]

[问：seuic] ADuC843在3V时的正常工作功耗是多少？

[答：Wayne] Normal mode: 4.5mA @ 3 V
power down mode: 10uA @ 3 V [2004-1-15 11:37:11]

[问：emli] 请讲述一下该产品在光通信领域的应用，谢谢！

[答：Jing] You can use it to control the optical power and detect the optical power . You can use it in EDFA,Raman amplifier and OLC ,VOA ,DWDM system and CWDM system,SFP,XFP module. We have some solutions for ADuC in optical communication. For more details ,please contact with 800 810 1742. Thanks! [2004-1-15 11:37:56]

[问：wills2003] 地线分布优化设计方法？

[答：Eagle] 低频系统一般用单点接地,用四层版容易处理,2层版需尽可能增大地面积,需依系统而定. [2004-1-15 11:38:07]

[问：millionliu] ADuC831系统中，原来是5V供电，现在想用3.3V供电，硬件需要作哪些改动？

[答：Charles] You just need to consider the digital interface that those digital I/O should  change to 3.3V too. [2004-1-15 11:38:48]

[问：konyme] 还有请问一下，如果我想采样VFC频率很高的话，用来采样电流电压，做工业自动化应用，应该选取什么样的片子？

[答：LiaoWS] For the VFC, what"s the frequency? Just use the Nyquist theory to select it.

To sample the current and voltage with low frequency (lower than 50Hz), anyone of the MicroConverter parts can be used. So, you have to decide the resolution you wanted.

For technical support, call 800 810 1742 or write to china.support@analog.com, please. Notice, don"t use sina.com mailbox, please. [2004-1-15 11:38:55]

[问：wzjhowk] 精密模拟微控制器内部带E2rom吗？容量多少？几个串口？零售价格？批发价格？

[答：Mariah] MicroConverter has internal program and data Flash. They have 8K,32K,64K bytes different version program Flash version. I2c and SPI port are offered. For price, please go to ADI website to see it or ask ADI distributors. [2004-1-15 11:39:20]

[问：reed78] 请问：热电偶（如：K偶、S偶等）精确测温解决方案。怎样解决器件本身漂移对测温影响？

[答：LiaoWS] Please refer to our datasheet of AD594/5. [2004-1-15 11:40:09]

[问：qin] ADuC中的功耗有多大?有无降功耗模式?需要散热装置吗?

[答：Eagle] ADuC系列功耗很小, ADuC814只有3mA (3V供电时). 有降功耗模式,不需要散热装置.
ADuC814 Normal:3 mA @3 V (Core CLK =2.1 MHz)
Power-Down:15uA at 3 V (32 kHz Running) [2004-1-15 11:40:42]

[问：chris_liush] Do you have this kind of MicroConverter: there is embedded RAM in it, I can save the data during the power failure only by bakup battery, like MOTOROLA product

[答：Eamon] On the ADuC83x and ADuC84x parts there is 2kB of embedded RAM. There is also a power supply monitor to allow you save ram to the 4kB of dataflash in the event of a powerdown. [2004-1-15 11:40:50]

[问：jackychen1973] MicroConverter 系列产品综述
精密模拟性能解释:他的精确度???
系统应用——适合实际应用的实用产品

[答：Wayne] 1) SOC with ADCs, DACs, Flash memory, MCU, interface (UART, I2C/SPI)
2) We"ve different series of products from 12bit (ADuC812, 814, 831/2, 841/2/3), 16bit (ADuC816, 836) to 24 bit (ADuC824, 834, 844).
3) Applications: instruments, communication (power control, environment measurement...), medical equipmenet like blood pressure measure, etc. [2004-1-15 11:41:40]

[问：goodgoodgoodok] 能否应用于语音识别系统？

[答：LiaoWS] Which kind of voice recognization will you use? Will you consider the power consumption and has the process capability requirment? [2004-1-15 11:42:00]

[问：seuic] 请问ADuC8xx有　IDE　吗？
如何获得？

[答：Mariah] ADI provides Aspire IDE for MicroConverter parts. Please contact ADI distributors to get that. [2004-1-15 11:42:32]

[问：94196] ＡＤＵＣ内部的模拟开关动作后，要等待多长时间数据才会稳定

[答：Jing] It"s depend on the sample rate of the ADC .Normally ,100nS  is enough. [2004-1-15 11:42:57]

[问：chris_liush] what"s the meaning WSD?

[答：Eamon] Windows Serial Downloader, it downloads via a PC serial port to the MicroConverter part. [2004-1-15 11:43:35]

[问：xzxdt] ADuc812有多少I/O口，驱动能力有多大。

[答：Eagle] 32IO,与AD8052MCU相同,但有些与ADC或DAC复用.Port 3 有高电流驱动,8mA SINK. [2004-1-15 11:43:38]

[问：chenxue] 微控制器的开发在器件USERMANUAL里讲得是否够细，即我通过阅读MANUAL

是否可以自己开发。另，我有熟练的MOTOROLA 8位机/UCOS开发经验，要

将UCOS移植到AD的微控制器上，大概要多久。谢谢。

[答：Wayne] Yes, you can do it easily with usermanual.
MOTOROLA MCU program is different. As Microconvertors are with 51MCU, your program need to follow up 51 MCU structure. [2004-1-15 11:44:16]

[问：MCU6894] 请问ADuC834内部RAM有多少？

[答：Jing] It has 256 byte RAM together with 2k byte xRAM [2004-1-15 11:44:29]

[问：hnzsq75] 请问ADuCXXX，内部带温度传感器吗？

[答：Mariah] Yes, ADuCxxx has internal temperature sensor. [2004-1-15 11:44:34]

[问：WUCAIXING] 我想问一些受控制后失真度为0.5%-1.0%的精密模拟微控制器，我需要很好的信号精密模拟微控制器。
谢谢！

[答：Charles] Depedent on the signal BW is. Normally, ADuC834/44 is the best candidate for high accurate applications. [2004-1-15 11:44:58]

[问：GE1213] How can the system based on the micro-converter be recovered from power failure or brown out without losing of data?

[答：Eamon] If the data if written to Flash memory during the powerdown it will be retained. There is a power supply monitor for this purpose. This would then have to be restored to the RAM locations on the next powerup. [2004-1-15 11:45:01]

[问：汉山] 采样现场（温度采样-50-50度）与主控板的距离有50M，请问如和用一块MCU 来解决处理和才样问题！

[答：LiaoWS] You can use our ADT7416 to connect to the remote temp diode, then use a MCU to process it. [2004-1-15 11:45:48]

[问：yanghui_bj] (一)能嵌入微操作系统(uCOS,RTOS等)? 详细阐述过程,可能对系统的负影响!
(二)能方便与HART,FF,TCP/IP等协议通讯硬件接口吗?举例!
(三)系统满负荷的功耗? D/A与外围器件能方便构成模拟输出二线制4-20mA吗?
(四)有可控精密恒流源?
(五)有支持在线下载BOOT吗?使用有什么问题要注意的?

[答：Dell] 1.It"s ARM core. And Keil developtment software can support it"s C or ASM language. In future we may have RTOS/uCOS. Of course if you is expert of ARM"s UCOS/RTOS you may try to shit it to our ADuC702X.

2.You may communicate with the external devices of HART/FF/TCP/IP by RS232/SPI/I2C interface.

3.300mW@45MHz
  Pls add the AD420/1 or AD690/3 for 4-20mA.

4.You may use ADuC"s 16bit DAC to realize it.

5.Yes.
  For ADuC8XXX it has RS232 communication code onchip for download.
  For ADuC702X you may realize ICP/download/debug by JTAG [2004-1-15 11:46:15]

[问：Bryan] 请问：ADuCxxx的片内temperature sensor 精度是多少？

[答：Charles] +/-1.5 degree(ADuC84x) to +/-3.0 degree(ADuC812). [2004-1-15 11:47:47]

[问：fjddxx] 请问一下使用C语言怎么访问ADUC824内部的640B的DATA FLASH？

[答：Dell] You may download the code example from ADI website. If you can"t I"m send it to you.Pls give me about your E-mail. [2004-1-15 11:48:00]

[问：94196] 请问ＡＤＵＣ芯片的ＡＤ和普通积分ＡＤ有何区别？

[答：William] ADuC has two types of ADC: SAR and Sigma-delta ADC.  Integrating ADC is usually less accurate comparing to our on-chip ADC. [2004-1-15 11:48:02]

[问：mimo] MicroConverter能否加入与SST89C5X一样,可直接与Keil联调的Software In-Circuit Emulator?

[答：Mariah] MicroConverter support Keil compiler. But you need ACE which is an emulator dedicated for MicroConverter to debug. [2004-1-15 11:48:34]

[问：fjddxx] 我现在正在使用的ADUC824里面的FLASH能够刷新读写多少次？
还有就是那个开发系统的仿真调试好象只能使用汇编，如何能让他支持C语言或者通过C51生成的LST文件？

[答：Jing] 10000(min) and 50000(typ) times.
You can use our non-instrusive emulation for C and assembly debug .
Please refer to page 30 of this presentation. [2004-1-15 11:49:08]

[问：zhangb] 请多介绍与标准传感器直接连接应用实例

[答：Wayne] Microcontertors can interface to all electronic sensors like various briges, temperature, current......
Please email to china.support@analog.com and give your interested application. [2004-1-15 11:49:16]

[问：pjh420] 请问：
   MicroConverter系列产品有用到监控领域吗？有成功的方案吗？
   我们公司系开发、生产、销售监控产品的，有画面处理器、嵌入式/PC式硬盘录像机等等。所以对这一话题感兴趣。

[答：Mariah] I think the processing ability of 8052 core can not meet the surveillance requirement. [2004-1-15 11:50:35]

[问：汉山] 用热电偶的才样精度能做到0.1度吗？
方案热电偶+运放+12BIT的A/D。
谢谢！

[答：LiaoWS] There are several ways to measure the temp: thermocouple, RTD, thermistor and semiconductor. Normally, the solutins except semiconductor can reach 0.1 C accuracy.

Also, in your solution, sometimes the amplifier can be ommited. [2004-1-15 11:50:52]

[问：zxy_hot] 　　我是四川成都市的用户，请问：
　　你公司的DA转换产品中，12位DA并行输入，双极性两组电压输出，速度在500K以上的，有哪些产品可供选择？

[答：Charles] AD7847 is the right candidate. [2004-1-15 11:50:57]

[问：Zhang Zhongping] 我关心的是片上A/D的最高位数，最大编程容量，是否可用C语言以及价格等。

[答：Jing] We have 24-bit resolution ADC and 62K program flash. You can use C . The price is different from part to part.
Normally $4.5@10k for some ADuC841/2/3 [2004-1-15 11:51:06]

[问：fqg7908] 请回答1.为什么在复位时（除去上电复位），ADUC812的RAM和DAC不能保持原来的值。2.为什么ADUC812的ADC在转换时会偶尔出现检测值偏大、偏小10%左右并一直保持。以上两问题经过多次实验已经得到验证

[答：Eamon] This could be due to an incorrect power on reset circuit, make sure that you have an external reset generator as specified on the ADuC812 datasheet and is active down to 1.0V. If you run an ADuC812 without an external POR you may have erased the calibration accounting for the ADC errors. You will have to replace this chip and put the correct Reset circuitry in place. Please contact ADC to discuss this further. [2004-1-15 11:51:19]

[问：hami001] 我擅长数字系统设计，工具多，通过软件完成工作，非常快捷
模拟部分比较头疼，有没有好的可编程模拟器件，完成实际的设计工作？

[答：LiaoWS] This should be decided by your requirement. We can be your consultor when new project comes, contact us via 800 810 1742 or china.support@analog.com, please. [2004-1-15 11:52:08]

[问：geatty] 它的开发工具主要有那些？是否具有兼容性？

[答：Eagle] Quick start (评估版)or ACE (单脚开发器) 和其他第三方开发工具. [2004-1-15 11:53:00]

[问：jamesontian] Do you have the component as the following description:FLASH 128K*8 120ns CM PLCC32R

[答：Eamon] The maximum internal flash size is 62kB within the MicroConverter part.
ADI does not manufacture stand alone FLASH ICs.
[2004-1-15 11:53:43]

[问：chenyf] 该微控制器是基于risc还是cisc的？速度能达到多少IPS？开发工具是否齐全：C、asm编译器/编程器等？能否方便的进行在线编程，如通过串口或专用ISP通道将程序download进去？
谢谢！

[答：Wayne] It"s a 8052 core, nothing with RISC or CISC. ADuC81x/2x/3x can support above 1MIPS, while ADuC84x can support up to 12.6 MIPS.
You can contact with china.support@analog.com for the full set of tools, which has ASM compiler inside, support online programming.
Downloading can be done via UART (with RS232 interface), or using emulator "ACE" which is from 3rd party Accutron. [2004-1-15 11:54:07]

[问：millionliu] ADuC831中，外接了4.1V的参考电压，还能不能通过设置ADCCON1.6(EXT_REF)来进行内部和外部参考源的切换？我们在实验中发现好像不行。

[答：Mariah] From datasheet, it can toggle with internal and external reference.
You can call 800-810-1742 to ask the engineer to do the experiment for you. [2004-1-15 11:54:54]

[问：MCU6894] 1、ADI最近有出了哪几款电能表芯片？各有什么特点？价格怎样？
2、模拟微控制器如何编程？供耗怎样？抗干扰能力怎样？

[答：Jing] 1.We have ADE7756/7/8/9 for energe measurement for single phase and three phase . The price is good. You can contact with your local sales for the exact price.
2.You can use C or assenbly lanuage to program and download it through UART or single pin emulator. The power consumption is very small and we also have seval power saving mode. [2004-1-15 11:55:38]

[问：wguyang1210] Please tell me the application of our products in optical network.

[答：Dell] Our ADuC814,ADuC831,ADuC7020 have been successfully used in O/E module such as digital diagnosis module,SFP,etc.

Our ADuC831,ADuC841 have been successfully used in metro EDFA . [2004-1-15 11:55:38]

[问：GE1213] Can the EEPROM be served for data backup purpose? What are the sizes of the data flash memory and EEPROM available?

[答：Eamon] Yes it can be used to backup data.
The data flash is 4kB, while the program flash is 62kB. Note: unused program flash can also be used for data storage.

There a 8, 32 and 62kB program flash versions of the ADuC84x parts. [2004-1-15 11:55:47]

[问：konyme] 请问VFC32资料中写的是输入上限是1V，配置40K欧姆电阻，产生线性100kHZ,实际测试中，超过1V后还有多大的线性度？还有，我在配置电容产生500KHZ的情况下，测试基数不是很稳定，这是什么原因？

[答：Mariah] This is the netseminar of Microconverter, please call 800-810-1742 to get support. [2004-1-15 11:55:55]

[问：jiayongli78] 我们的产品，如：接线性度是不是很完好？尤其是热电阻一类的非线性器件，线性度，不是很好的元件。我希望我们的转换器件是可遍程，控制线性度的，还有增益是可以调节的？这些转换芯片是不是已经包含了这些功能，如果是的话，将大大降低我们开发的硬件设计还软件开销！！！

[答：LiaoWS] OK, if you can connect it as bridge, you can use AD8555. For RTD, you have to use linearization scheme, which is simple. We cna discuss this via china.support@analog.com. [2004-1-15 11:56:26]

[问：jiangq_63] 有ADuC的专用实验仪吗

[答：Mariah] We have the evaluation boards for all the Microconverter parts. [2004-1-15 11:56:27]

[问：williamzhang] 我参加了中电网在上海的展会,也听了AD公司的演讲,但是我们是做贸易的,希望能给我们解答一下具体用在某一系列产品中的具体型号,好让我们的工作更有针对性.比如说AD公司的产品在数字电视中的应用,具体回有那些,哪一系列的型号会用到,希望能给出具体讲解,谢谢!

[答：Eagle] 数字电视机常用器件:
ADV7183A, ADV7400 video decoder.
AD9883, AD9882, AD9887, AD9888, AD9981, AD9980 RGB digitizer.
ADV7123, ADV7125 Video DAC
ADV7171, ADV7196A, ADV7302A, ADV7312A video encoder.
ADG3257, ADG774A, ADG779, ADG736 video or audo switch.
AD8091, AD8092, AD8073, AD8061, AD8061 Video amplifier. [2004-1-15 11:56:41]

[问：750152] 请问贵公司的ADC精度和转换速度是怎样的?

[答：Wayne] Resolution: 12bit (ADuC812, 814, 831/2, 841/2), 16bit (ADuC816, 836), 24 bit (ADuC824, 34, 44).
Conversion rate: 200KSPS (ADuC812/814, 831/2, 841/2), 105Hz (ADuC816, 836, 8x4) [2004-1-15 11:56:43]

[问：xiong.gaocai] AD812中的A/D是否不能并行采样？？谢谢

[答：Dell] Is what you said ADuC812? It can"t do because it only has one ADC onchip with 8-channel MUX . [2004-1-15 11:57:15]

[问：fjddxx] 我现在正在使用的ADuC824里面的flash能够刷新读写多少次？
还有就是那个QUICKSTART开发系统的调试好象只能使用汇编，如何能让他支持C语言或者通过C51生成的LST文件？

[答：Jing] 10000 (min)   50000 (typ) times cycle.
You can use our non-instrusive emulation tools to support C code .Please refer to page 30 of this presentation. [2004-1-15 11:57:18]

[问：jiaozhanwei123] 高集成的芯片价格比较昂贵.ADUC845的价格定多少呢?其实高集成的芯片的缺点就是有些功能客户是不需要的.但对于其他的功能又是必须的,因此就必须为此付出额外的代价.有什么解决的办法吗?

[答：LiaoWS] The price for ADuC845 is $13.16@1K pcs volume. ADI is just on the way of provide simplified Microconverters, eg we will provide MicroConverters without DAC. [2004-1-15 11:57:51]

[问：269237] 用WSD V6.02下载程序时,如果程序较长(如50K)根本无法成功,但程序如较短(如4K)就可成功,这是为什么?如何解决?是否与RS232接口有关?(我用的是MAX3232芯片)

[答：Eagle] Please check the WSD version, Please contact us! [2004-1-15 11:58:04]

[问：chghou] Can I directly debug C source in Aspire with Keil C51 Complier?

[答：Dell] You can do it through our hardware debugger(ACE).Pls contact ADI china support to buy it. [2004-1-15 11:58:12]

[问：geatty] 请问该系统适合实际应用的产品主要有哪些？以及如何简化我们的应用设计？

[答：LiaoWS] You can find these information from the presentation. You can discuss with us to simplify your design, send mail to china.support@analog.com, and leave your phone number to us. we will be very glad to discuss with you. [2004-1-15 11:59:03]

[问：chris_liush] How can I pay attention to the Digital GND and anolog GND when I made the PCB layout

[答：Eagle] 该问题有多次探讨,请同我们联系! [2004-1-15 11:59:12]

[问：xiong.gaocai] Can the input of AD812"port1 be setted parallel??

[答：Jing] Sorry you can"t . It"s just SPI interface with fore  wire serial port. Thanks! [2004-1-15 11:59:47]

[问：GE1213] How long can the data in the flash and EEPROM be retained without being refreshed?

[答：Jing] It can remain 10 years [2004-1-15 12:00:18]

[问：zhongyong] 你好：
    我的系统中需要做一个可变增益的放大和衰减单元，控制通过数字进行，不是通过机械开关。具体要求是输入（＋－）10mV－20V，输出可以恒定的放大或衰减为（＋－）1V，带宽为20M，请问有没有合适的方案？谢谢！

[答：William] Depending on how accurate you need for the low-end (10mV), you can first attenuate the signal down to a lower level so that it can be directly input to an IC.  You can either use an digitally controllable amplifier or a mux to select the range.  For example, our ADG4xx family can tolerate up to 15V.  Then you can easily attenuate/amplify the signal to a certain range and then use a DGA.  Please contact our local sales office for details. [2004-1-15 12:00:46]

[问：潘启军] 使用ADI公司的测量放大器AD624，若信号频率约在20KHz以上，且放大倍数档位为500或1000时，放大倍数的非线性非常严重，怎样解决这一问题？（输入信号由不同频率的信号分量合成：直流－5MHz）

[答：LiaoWS] How about your input signal voltage? You know, 50KHz BW is only for small signals. Anyway, you can send your schematic to china.support@analog.com and descibe your test enviroment with details. [2004-1-15 12:01:44]

[主持人：ChinaECNet] 所有问题均已提交给美国模拟器件公司的专家。座谈期间未回答的问题，美国模拟器件公司专家也会逐一回答，并在中电网上公布，请大家注意收看。 [2004-1-15 12:01:46]

[问：wangsw] 请问你们的reset脚复位的电压在多少以上，以5伏做电源时，在系统中发现很多时候复位经常有问题

[答：Wayne] It"s 2.4v a the logic high on reset pin. [2004-1-15 12:04:39]

非在线问答:

[问：] 请就ADCuC834与msc1210(TI)的ADC特性做一个比较

[答：] Please call out local office for more details

[问：] 能否申请DEMO开发板试用？

[答：] You can purchase the develop board. For more support, you can contact with china.support@analog.com

[问：] 微控制器是多少位的？主要用于什么领域？仿真器是否很贵？

[答：] It is 8bit 8051MCU, with different resolution ADCs and DACs and flash. Microconvertors can be used in various systems: Intelligent Sensors, Battery Powered Systems, Transient Capture Systems, DAS and Communications Systems, Control Loop Monitors(Optical Networks/Basestations). The price is $75 for general develop tools, and you can purchase the ACE emulator as well.

[问：] 精密模数转换器（ADC）和数模转换器（DAC）是多少位的，采样速率是多少？

[答：] We've Microconvertors with 12 bit, 16bit, 24 bit ADCs, and 12 bit DACs. Sample rate is different as well for different part#, for example, the ADC sample rate of ADuC812/31/32 is 200KSPS, and ADuC841/2/3 is 420KSPS, while ADuC824/34/45 is 105Hz.

[问：] 精密模拟微控制器可用于哪些领域

[答：] Intelligent Sensors, Battery Powered Systems, Transient Capture Systems, DAS and Communications Systems, Control Loop Monitors(Optical Networks/Basestations).

[问：] ADUC834性能如何？

[答：] Two Independent ADCs (16- and 24-Bit Resolution); 62Kbytes On-Chip Flash/EE Program Memory, 4 KBytes On-Chip Flash/EE Data Memory; 8051-Compatible Instruction Set (12.58 MHz Max); 32 kHz External Crystal, On-Chip Programmable PLL; 12-Bit Voltage Output DAC, Dual 16-Bit Sigma Delta DACs/PWMs; Specified for 3 V and 5 V Operation. For more details, please refer to the datasheet

[问：] what about aduc vs msc?

[答：] Please call our local office for more details

[问：] 请介绍一下新设计里，那些ADUC的信号或者说硅版本不推荐再使用，谢谢

[答：] All Microconvertor products are in use, however, we recommend greatly on some new products which has bigger flash (32KB or 62KB) like ADuC831/2/4/6, or even faster ADC sample rate and MIPS like ADuC841/2/3/5

[问：] 早期的aduc812，现在用什么代替？

[答：] You can still use ADuC812. Also you can use ADuC814 as low cost version, ADuC831/2 for bigger flash, and ADuC841/2 for faster ADCs and MIPs.

[问：] ADC的速度和精度？mcu的速度？开发系统的简介

[答：] We've Microconvertors with 12 bit, 16bit, 24 bit ADCs, and 12 bit DACs. Sample rate is different as well for different part#, for example, the ADC sample rate of ADuC812/31/32 is 200KSPS, ADuC841/2/3 is 420KSPS, while ADuC824/34/45 is 105Hz. The MCU speed is 1MIPS for ADuC81x/83x series, and 20MIPs for ADuC841/2/3 series. We offer full develop tools including evaluation board, windows serial downloader, simulators, debug software, and ACE emulator for C program.

[问：] 有CAN连接协议的解决方案吗？

[答：] Microconvertors don't support CAN interface

[问：] 贵公司的ADC的转换的最小时间是多少?

[答：] 420KSPS for ADuC841/2/3

[问：] 精密模拟微控制器与自己用器件搭建的系统相比，除了体积更小之外，其他优越性有那些？

[答：] Microconvertors can help you avoid PCB layout consider between ADC/DAC and MCU, with better resolution, and anti interference performance. Save your R&D and production time.

[问：] 开发工具和支持软件有哪些？

[答：] We offer full develop tools including evaluation board, Accutron Aspire™ IDE (assembly-only debug using serial download/debug mode, assembly-only simulation), WSD (Windows Serial Downloader), WASP (Windows Analysis Software Package), example code, function libraries, atasheets, application notes, etc.

[问：] 请问:芯片内部的数字地和模拟地是怎样解决的

[答：] Although the ADuC has separate pins for analog and digital ground (AGND and DGND), the user must not tie these to two separate ground planes unless the two ground planes are connected together very close to the ADuC. You can find different solution on the datasheets.

[问：] I2C 与 SPI 通信可以吗? 如果可以如何进行通信?

[答：] Yes, Microconvertors support I2C and SPI interface. The datasheet gives full explanation of their working modes.

[问：] 其中的微控制器的性能如何?

[答：] Present Microconvertors are with 8bit 8051MCU, 1MIPS (ADuC812/4, 824, 83x) to 20MIPS (ADuC841/2/3)

[问：] WSD是否支持所有的AD公司的微控制器件？

[答：] Yes, it support all Microconvertors.

[问：] 集成PWM主要用于什么方面的应用呢

[答：] PWM can be used as DAC output and fan control

[问：] 在高增益（10^10）的放大电路设计中，有那些抗干扰措施和应该注意的地方？

[答：] First thing is to make sure you choose good performance component, especially those for the front end amplifier/conditioning. Then you need take care of power supply quality, proper grounding and component distribution on the PCB. Here is a article for your reference: http://www.analog.com/technology/amplifiersLinear
/training/sensorSignal.html

[问：] 如何才能达到更高的采样率呢？

[答：] For the MicroConverter parts, the maximum sampling rate is fixed. If you need the sampling rate higher than the maximum one, you have to use external ADC/DAC. We can select them for you, please contact china.support@analog.com for help or 800 810 1742.

[问：] 能否提供一个简单PDA的配置设计，功能成本报价？

[答：] ADI is an IC provider, not a solution provider. You are welcomed to use our parts, but we cannot provide a PDA solution to you.

[问：] aduc824->aduc844->aduc844 roadmap.
请问aduc844何时推出？

[答：] ADuC844 won't be released. Please consider ADuC845 or other parts. ADuC845 will be released in April 2004.

[问：] 我想问一下，除了用西格马德尔塔形式的数模转换外，aduc系列还用了什么形式的数模转换。

[答：] 还有逐次逼近型的。如ADuC814, ADuC831, ADuC832, ADuC841.

[问：] 同TI的MSC12XX系列相比，aduc有何优势？

[答：] We can compare in three aspects. For analog performance: ADuC has higher resolution ADC, higher DC-parameters, richer analog resources, e.g. excitation source, channel number, PWM output. For digital performance, ADuC is faster, have more memory, more power on reset. For the cost, ADuC should be lower than the same performance ones. Also, ADuc will be lower power dissipation.

[问：] AD的微控制器相比其它如MOTOROLA的有何突出优点，谢谢？

[答：] Our ADuC has higher analog perofrmance, higher integration and extensive example sources.

[问：] 器件的采样动态范围即频宽如何

[答：] Our ADuC814 has the highest sampling rate of 247KHz, ADuC841 is 274KHz. According to the Nyquist theory, the signal BW can be higher to half of the sampling rate.

[问：] AD公司有没有在性能上价格上均低于AD694或AD421的4-20mA的芯片

[答：] AD421 is 16-bit resolution, can not it meet your requirement? We can discuss your requirement via phone 800 810 1742, or send mail to china.support@analog.com.

[问：] 该产品的应用前景如何,是否适用于军工产品.谢谢!

[答：] The application field is very wide. And the temperature range is from -40 to 125 C. So, surely it can be used in some military applications.

[问：] 请问申请ADI的样片如何申请？多谢。

[答：] Please go to our website www.analog.com to apply for them. If you encounter any problem, feel free to send mail to china.support@analog.com for help. Or you can contact our authorized distributors for the free samples.

[问：] 请问对于高阻抗信号的放大AD公司有哪些相应的芯片？

[答：] How about the signal bandwidth? You can consider our DigiTrim parts e.g. AD8606. Also AD8671 can be used in this application. Our fastFET can be used in high speed signals. Also, AutoZero parts e.g. AD8628 can be used, instrument amplifiers e.g. AD8221 can be considered. For technical support, send mail to china.support@analog.com, please.

[问：] 此系列产品是否已经批量供货，采购渠道是否畅通。大致的价格范围是多少？

[答：] We can provide them. It is very easy for you to buy them from our authorized distributors. You can find their prices from the presentation or check from our website www.analog.com.

[问：] 可以比较一下贵公司的24b产品和TI 的1210系列吗?

[答：] We can compare in three aspects. For analog performance: ADuC has higher resolution ADC, higher DC-parameters, richer analog resources, e.g. excitation source, channel number, PWM output. For digital performance, ADuC is faster, have more memory, more power on reset. For the cost, ADuC should be lower than the same performance ones. Also, ADuc will be lower power dissipation.

[问：] 精密模拟微控制器比较其他有什么特别的优点？？

[答：] Higher integration and flexible interface.

[问：] can you give me the lately "high speed design techiniques"?

[答：] What's this? If you need technical support, please contact china.support@analog.com

[问：] 请回答1.为什么在复位时（除去上电复位），ADUC812的RAM和DAC不能保持原来的值。2.为什么ADUC812的ADC在转换时会偶尔出现检测值偏大、偏小10%左右并一直保持。以上两问题经过多次实验已经得到验证........

[答：] For DAC, this is just the design. For ADC, Would you send your experiment data to us. We have never found this. Normally this is the problem of application. I think we can help you solve it if you can cooperate with us.

[问：] 请问1、为什么ADUC812的RAM和DAC在复位后不能保持原来的状态（已多次实验证实）。2、为什么ADUC812的ADC检测偶尔会出现转换偏差大约10%左右（已多次实验证实）

[答：] Please call to our local office for more details

[问：] 想了解更多的SPI,I2C接口

[答：] SPI is the interface from Intel, I2C is the stadard from Philips. Please visit their website to get the detailed specific.

[问：] 如何通过5V信号控制15kv~25Kv的电压信号？<br>
要求能实现1V可调?

[答：] I am not sure about your application and requirement. Please call ADI support hotline 800-810-1742 to get help.

[问：] 请问是否有与8051兼容的带模拟信号的cpu？

[答：] ADI's Microconverter integrates ADCs and DACs. So it can process analog signal.

[问：] 我想用于8路的数据记录仪，请推荐一款贵公司的产品。

[答：] The small size and integration of the MicroConverter are used to make a precision sensor datalogger.You can consider ADuC83x or ADuC84x for they has more flash memory. ADuC84x features a 12 times faster MCU core than ADuc83X.

[问：] 精密模拟微控制器的主要功能有哪些？精密模拟微控制器开发套件有几项？价格？用户能得到哪些服务？能否提供较详细的资料。

[答：] ADI's Microconverter integrates ADC,DAC,MCU,FLASH,temperature sensor and etc. in one chip. So it can be regared as a system on chip. ADI provides a complete development tools for them. You can call ADI free support hotline 800-810-1742 to ask for the free development tools and materials.

[问：] 精密模拟微控制器发展如何?

[答：] ADI has three series parts of Microconverters. First is ADuC81x. The second is ADuC83x which has more FLASH memory that ADuC81x. The third is ADuC84x which has a 12 times faster core than AduC 84X. ADI is now working on ARM core MicroConverter parts which will be release in the future.

[问：] 有没有比较好的AD679的替代品？精度和速度方面

[答：] ADI certainly has many parts which have better performance than AD679, for example AD7674/9. If you want to make part selection, please feel free to contact ADI China application support hotline 800-810-1742 for help.

[问：] ADI现在有12位的AD的单片机吗？

[答：] Yes, all SAR Microconverters integrate 12 bit ADCs. For example ADuC814, ADuC831/2,ADuc841/2/3.

[问：] 8052 cores的片子具有积成有高精度的温度传感吗.

[答：] Yes, but the accuracy of on chip temperature sensor is relatively low.

[问：] ADI software for online debug 支持那些系列器件?

[答：] The new version of it supports all the MicroConverter parts of ADI.

[问：] ADI software for online debug是免费的还是非免费的?如果是非免费的,价格大概是多少?

[答：] The tools for assemble debug is free. The tools for C code debug is $299.

[问：] 关于高精度ADC/DAC,能否举例谈一二个成功案例?谢谢!

[答：] In the netseminar presentation, we have given several applications such as weighscale, RTD temperature test, datalogger and so on.

[问：] 有关于视频数模转换方面的产品吗？

[答：] Yes, ADI provides many video parts. Such as video decoders, video encoders/decoders, flat panel interfaces and etc. You can go to ADI website www.analog.com to see that.

[问：] 精密模拟微控制器的关键特点是什么？

[答：] High integration and high performance.

[问：] 有否适合音频的SoC,用于高档的数字调音台(Mixer)

[答：] For audio applicatons, ADI provides many expert devices. You can consider AD1954. And also On December 8, ADI announced four new products from our 3rd Generation of Programmable SHARC Processors, now providing capability for high performance audio in Home Theater, Automotive, Professional and Consumer Audio applications. These four new pin- and code-compatible products, ADSP-21364, ADSP-21365, ADSP-21266 and ADSP-21267, bring new memory configurations, integrated audio-centric peripheral functionality and support for the very latest audio algorithms, such as WMA Pro and Dolby Pro Logic 2X, to the mass market for costs as low as just $10! Each are also pin- and code-compatible with the ADSP-21262 which will be released to production later this month.

[问：] 可以使用那些工具读出MICROCONVERTER中已经烧入的内容.

[答：] ADI does not provide this kind of tools.

[问：] 烧绿称式在此如何加密（非称式本身）

[答：] I can not catch what is your question. Please call 800-810-1742 to get help from ADI China support center.

[问：] 1。A/D D/A 都是多少位？2。 A/D口输入电平范围？3。是单极性供电吗？4。采样率是多少SPS？

[答：] The SAR Microconverter integrates 12bit 247KSPS/420KSPS ADCs. The sigma delta MicroConverter integrates 16bit/24 bits ADCs. The DAC for them are all 12 bits. The input range varies from part to part.They are all single supply.

[问：] ad24的线性如何，输入可以是多少?是不是轨到轨?

[答：] I think the part number you provided is wrong.

[问：] I need a datasheet about it

[答：] Please go to ADI webiste to download it. www.analog.com

[问：] 一般可以用在那些场合？最适合的目标应用是那些？

[答：] In the Industrial and Instrumentation sector:Smart Sensors Data Loggers Handheld instruments The optical sector has shown a lot of interest in these parts, the parts are generally used in Fiber Optic Transceivers, to implement diagnostics and some control VOAs and EDFAs In RF power the MicroConverter has been used for power amplifer control in base stations.With flexible power down modes the MicoConverter is suitable for a range of Portable Medical Instrumentation applications including Precision Analysis Glucose Monitors Blood Pressure Monitors These parts are also used to provide some degree of system monitoring and general houskeeping tasks.In energy measurement, the high speed 12bit ADC allows the MicroConverter to measure three phase power accuratly in a power meter design.

[问：] 请问 1、此精密模拟微控制器中的DAC和ADC精度是多少位的？、
2、精密模拟微控制器是就一个芯片么？如果是价位大概是多少？

[答：] We have 12-bit,16 bit and 24 bit resolution device.This microconverter is a hybrid IC that incorporate the ADC,FLASH and MCU in one chip. The price is different from part to part.($3---$19)

[问：] ADuC845的可编程空间是多大

[答：] There is 32K or 64K byte program memory in ADuC845.

[问：] 请问，精密模数转换器和数模转换器用的是ADI的产品吗，还是另外单独设计的？其分辨率和其他主要参数是多少？

[答：] Yes,the ADC and DAC in Microconverter is ADI's product.The resolution is 12bit,16bit and 24 bit for your reference. Other more detailed parameter about the device ,please refer to out datasheet.Thanks!

[问：] 请问我可以取得ADuC824的sample吗？

[答：] Yes,you can. Please log on our web site http://www.analog.com to apply it or contact with your local sales.Thanks!

[问：] “精密模拟”的具体含义是什么？

[答：] It means that the DAC and ADC in the Microconverter is very precision and stable when incorporated with the digital circuit.

[问：] 从哪里能够获得详细的资料。

[答：] You can log on http://www.analog.com/Microconverter to download the literature and example code or you can call 80 810 1742 to get the materials. Thanks!

[问：] 开发的环境和开发工具是否简便易用？

[答：] It's very simple to use. The interface is very kind and there is a lot of example code and application note for your reference. For more support,please call 800 810 1742.

[问：] 需要何种开发平台？

[答：] We have ASPIRE IDE in the development tools and you can also use Keil .

[问：] 先问一个简单的问题:如果转换器的内部基准电压为2.5V,电流要求500mA.而我现在加一5V的外部基准电压可以吗?同时保证输入电流为500mA,即将原来的500欧姆的电阻变为1000欧姆.
MicroConverter系列产品 - 精密模拟微控制器可以用于运动控制吗?开发工具对于一个一般的开发集体可以接受吗？

[答：] You can use the internal reference or you can use a external 2.5V voltage reference. Increase the resistor to 1000 om is not true. You can use the microconverter in the moving control .The development tools is only $75 and you don't need any other tools.

[问：] 芯片是多少条腿？开发系统多少钱？

[答：] We have 56 pin PQFP and 52 CSP and package and 28 pin TSSOP for ADuC814.

[问：] ADI 的SOC和CYPRESS的SOC的差异在什么地方，他的编程方式是什么？开发工具是什么？

[答：] ADI's Microconverter has better performance than CY8C27x such as the resolution of ADC and we have more program memory and our core can reach 20MIPs etc. You can use assembly or C language in ADuCXXX and our development tools has more function such as the single pin emulator and u-load mode. Thanks!

[问：] 请问贵公司是否有超过24点以上的模数转换的带有冷端补偿功能！

[答：] The maxim resolution of our ADC is 24 bit.

[问：] 进行电－光转换的AD有那些品种？

[答：] If you want to perform optical-electric converter,please select a photo diode .We have only Transimpedence amplifier ,limiting amplifier.

[问：] A/D转换精度/线性度/一致性/速度能否满足动态电子秤的要求?与Cirrus公司的CS5532在A/D性能上能否比较?

[答：] It can meet the requirement of the weigh scale . Our ADC had better performance then the CS5532 such as resolution and precision and DNL,INL etc.

[问：] 请问：在工业控制领域，实现数据采集、通信、控制等功能，选用那种cpu比较好？

[答：] It's depend on your exact application. Normally ADuC841 can meet almost all the control requirement . Please call 800 810 1742 to describe your application more detailed and our engineer with help you to select a part number. Thanks!

[问：] 该系列产品有没有在环境温度150C使用？

[答：] We have -40---85℃ product. No 150℃ product.

[问：] 贵公司的产品用的都是8052的内核，为什么贵公司不用其他的内核，如ARM7之类，除了成本原因，谢谢

[答：] We have ARM core product such as ADuC7020/1/2/3/4/5/6

[问：] 请问。你们的芯片有在音响领域应用过吗？有具体例子的网站吗？效果怎么样？

[答：] You had better use our sigmaDSP in your audio prduct. For more information ,please log on http://www.analog.com/Analog_Root/sitePage/mainSectionHome
/0,2130,level4%253D%25252D1%2526level1%253D117%2526
level2%253D135%2526level3%253D%25252D1,00.html

[问：] 请问贵公司产品的内核有哪几种，不同内核的产品性能大体有什么不同，应用在什么不同方面？谢谢！

[答：] We have ordinary 8052 core,1-cycle 8052 core and ARM core .The 8052 core can reach 20 MIPs and the ARM core can reach 45MIPs.For more detailed information ,please find it in the datasheet.Thanks!

[问：] 请问模拟微控制器中使用的模拟器件都有些什么类型？

[答：] The analog part in this device include ADC,DAC,MUX,Temperature sensor,Voltage reference,buffer amplifier, PGA.

[问：] 请问ADuC8XX内部温度传感器该怎么应用？好象芯片资料里没有提到。

[答：] A voltage output from an on-chip band gap reference propor-tional to absolute temperature can also be routed through the front end ADC multiplexer (effectively a ninth ADC channel input) facilitating a temperature sensor implementation. Write 08h into ADCCON2 (CS3=1, CS2,1,0=0) then you can read Temperature date. Please refered to ADuC832 Datasheet Page20.

[问：] 请问贵公司的i51系列的芯片的可编程语言有哪些？？？

[答：] 8051 单片机所有汇编和C语言编译软件都可以.

[问：] 请问片内存储器容量是8k-64k,其寻址方式有何异同？代码兼容性如何考虑？

[答：] 没有不同.

[问：] ADμC831中，PWM中model4和model6的Σ-ΔDAC的机制是什么？能代替数模转换器吗？需要加什么外围电路？

[答：] 它是Σ-Δ调制脉冲,外加低通滤波器即可构成DAC, 可代替DAC,并且特别便于需要隔离的DAC应用. 可以用ADuM1100先数字隔离再滤波.

[问：] 编程器通用吗，价钱？

[答：] 是. $75买quickstart.请咨询代理.

[问：] 在现在的无线信道上实现视频图像的准实时监控，不知道效果是不是可以？<br>
对于用QCIF这样的图像来完成这样的工作选用那种芯片比较合适？假如采用h.263的编码方式，编码的帧率一般可达多少？编码的帧率是不是＝编码帧数/编码时间有关？

[答：] ADSP-BF532特别适合.

[问：] 请问一下：你们公司的比较低档的8位，10位。12位ADC是哪些？8位8通道AD7908, 10位AD7812以及12位8通道12位AD7927便宜, 单通道可用AD7920等.价格是多少？极其产品资料

[答：] 8位8通道AD7908, 10位AD7812以及12位8通道12位AD7927便宜, 单通道可用AD7920等.

[问：] 我做了个简单的温度巡检仪，就是8个温度检测显示，用热电偶做传感器<br>
AD用10位的，我总觉得选的AD，CPU，显示器件都不理想，你能否建议一<br>
下，要实用，经济，稳定

[答：] 可以用两片AD8609放大器和一片AD7812外加带LCD驱动的MCU, 用一片ADuC812也可以. ADuC812片内有8通道12ADC.

[问：] 请问它是几位的控制器内核？什么系列的控制器内核？

[答：] ADuC8xx系列用8位的8052MCU内核, ADuC702x系列用16bitARM内核.

[问：] 请问专家能否在座谈上讲讲MicroConverter系统芯片与C8051系列的芯片有何不同，在下感觉它俩有些共同点。
另外它们在价格上也是上一个档次的，不知ADI公司何时象Cygnal一样有降价的计划？

[答：] ADuC8xx与51系列单片机在内核上是一样的,单ADuC8xx系列是集成了ADC,DAC和片内FLASH的单片系统,价格比分开用的ADC,DAC和MCU的总和便宜.

[问：] 该系列AD Device 和以前AD Device相比,有哪些重大突破?

[答：] ADuC8xx系列是集成了ADC,DAC和片内FLASH的单片系统,性能比一般人设计的分立系统还好.

[问：] 我想知道AD公司的产品和其他厂家产品的比较,包括价格和性能

[答：] ADuC8xx系列是所有类似产品中性能最好的,价格也很好.

[问：] ADuC中的GPIO有多少?

[答：] 32个,与51系列单片机相同,不过有一些IO管脚与ADC或DAC复用.

[问：] ADuC中的存储器有多少种类型?ROM,RAM或闪存的容量有多大?

[答：] Flash存储空间主要分8K和62k两种,参见选型手册.

[问：] 12bitADC的精度是多少？

[答：] 如果使用外参考,ADuC832的INL可达+/-0.3LSB,DNL可达+/-0.25LSB. 使用内参考,也可保证+/-1LSB

[问：] 请问如何获得技术资料和开发环境？

[答：] 为给您提供技术支持，您可以拨我们的免费电话 800 810 1742 到位于北京的中国技术支持中心，也可以发电子邮件到china.support@analog.com，告知您的电话与应用项目. 如果要申请免费样片，可以找代理商，也可到我们的网站 www.analog.com 申请.

[问：] 请问：精密模拟微控制器可以完成数字视频方面的功能吗！例如：数字图象的传输控制，以及数字图象到模拟视频信号（例如：NTSC制式）的转换。

[答：] 建议使用ADV7183AVideo Decoder, ADSP-BF532 DSP和ADV7179 Video Encoder.

[问：] I need a stable voltage reference of 0.6 Volt. Can I derive it from DAC?

[答：] 可以,但要考虑精度. 如果要求可变参考且精度要求不高, 可以用2.5V电压参考(如ADR381) 和数字电位器(如AD5280).如果精度要求高且固定为0.6V,用固定电阻分压较好.

[问：] 基于高性能闪存的在线可重编程微控制器，市场价格是多少啊，怎么才能买到或试用呢？

[答：] 可找代理商购买, 他们会提供技术支持. 为给您提供技术支持，您可以拨我们的免费电话 800 810 1742 到位于北京的中国技术支持中心，也可以发电子邮件到china.support@analog.com，告知您的电话与应用项目. 如果要申请免费样片，可以找代理商，也可到我们的网站 www.analog.com 申请.

[问：] ADI推出可编程信号调理自稳零放大器AD8555有什么优势？

[答：] 特别适合零点要求高但增益要可调的低频微小电压检测电路.

[问：] 微控制器的内核是8051吗？还是其他的呢？

[答：] ADuC8XX is 8052 core;ADuC702X is ARM7 core.

[问：] 我用过PHILIPS的AD DA芯片，需要IIc总线控制，不知你的产品用什么方法控制，用内置的MCPU吗？请讲解有关开发工具

[答：] You may dirctly write or read the relative registers to control ADC/DAC.Pls see the relative description in ADuCXXXX datasheet.

[问：] 使用AD7730发现脉冲调制无实际用途,因为只要在应变传感器与AD间有几米长的电缆,电缆的形变就会严重改变AD的输出.另外由于干扰导致AD内的设定变化,常常死机.单片机不死机,AD总死机,这是需设置类AD的致命毛病.另外∑ΔAD的变换值对信号源的等效电容变化太敏感,而器件说明书均不提此事.对上述问题不知有什么见教?谢谢!

[答：] AD7730 is 24bit ADC.Pls carefully design its front end and PCB layout. You need to move the noise out. On the long cable application, we suggest you ad the amplifier as the buffer there. For AD7730 issue or ∑Δ ADC questions pls contact china support .

[问：] MicroConverter有没有成本优势，　比较而言

[答：] Yes. It's single chip acquisition system. It's price is lower than ADC+8051+EEPROM.

[问：] 精密模拟微控制器降价空间大不大？

[答：] The price is decided by volume and time.

[问：] aduc845,aduc834 ,评估板，C51 ,MONIOTR 调试,软硬件关键要点

[答：] It's a big questions. Pls contact china support for detailed information.

[问：] 请问贵公司的产品是否支持负电位供电，对于视频、音频处理应选用什么型号的芯片？

[答：] In feneral ADI most parts are supplied by positive supply. For Audio,Video detail parts, please contact our local office.

[问：] 64K flash 的价格是多少

[答：] The price of 64k flash in our ADuC8XX is cheapper than the special FLASH device.

[问：] 该款芯片的价格如何？在哪儿可找到技术支持？

[答：] Generaly its price is about $10.Pls contact China support for detailed price.

[问：] 请问专家，对于DA输出，在较大输出范围内，如何来保证输出的线性度？

[答：] Make sure you won't over drive the DAC. For examples, there is a certain output current the internal DAC can do. Please make sure the load current won't over its range.

[问：] 在用热电偶测温中，用A/D处理，能省掉运算放大器吗？

[答：] You need to use high precision amplifier like AD8551/52 and AD8628 before ADC.

[问：] 请问北京有技术支持或办事处吗？

[答：] Yes.Pls contact China supporting center..

[问：] 请问与cygnal公司产品相比，有什么优势？

[答：] Higher integraty,ADC/DAC accuracy and low price.

[问：] 你们这些产品最主要的优势是什么呢

[答：] Higher integraty,ADC/DAC accuracy;low price.Easy debugging/download

[问：] 什么是"线与"逻辑，要实现它，在硬件特性上有什么具体要求？ 

[答：] Sorry.I don't understand this question.

[问：] 在什么样的情况下，MCU控制系统中的接口最好采用PLD，CPLD以及FPGA？

[答：] 1.There's no enough I/O port .2.Need high speed logic control. 2.save the volume of devices.

[问：] 请问，内含E2rom吗？需要掉电保存的数据。

[答：] Yes.All ADuC has onchip EEPROM.

[问：] 一套开发器具多少钱啊？用仿真器吗？不好意思，来的晚了点，有些东西没听着。

[答：] Yes. Pls contact china support for developtment system.

[问：] 希望能得到精密温度控制的建议，生产线上半成品的湿度（5％以下）测量（最好是实时）的建议。

[答：] Pls use sensor+AD590+OP4177+ADuC831 to implement it.

[问：] 专家你好！贵公司在我校组织讲座时，因为当时器件手册不够了，说是等回去以后再邮寄过来，可现在等了很长时间，一直没有音讯。不知道是什么环节出了差错。
如果可能的话，可否直接邮寄给我。谢谢！
地址：北京市海淀区清华大学热能工程系动力机械与工程研究所
收件人：徐洪志

[答：] Pls contact our local office or China supporting center.

[问：] 因为我以前在气象厂上过一段时间，所以想做高精度的温湿传感器但是要求成本不高，能推荐一片ad吗？

[答：] Price dependent on performance and volume. Need you detail Spec. such as resolution/INL/DNL/…etc. then can suggest you some parts. Pls.call ADI China support center for more info.

[问：] 你好，我想知道模拟微控器中“模拟”的含义。谢谢

[答：] It means that ADuCxxx integrated ADC,DAC,MUX,Temperature sensor,Voltage reference,buffer amplifier, PGA.

[问：] MicroConverter 产品有哪些特点！

[答：] Higher integraty,ADC/DAC accuracy;low price.

[问：] ADI在音视频处理上有那些产品，优势是什么？谢谢。

[答：] High performance AMP/ADC/DAC/MUX, video encoder/decoder/audio codec/sample rate converter/sigmaDSP.Pls. visit our Website www.analog.com for more details.

[问：] 要用于教育和研究，从那里可以买到少量的ADuC?

[答：] You can apply free samples in ADI website www.analog.com or place order to ADI distributor.

[问：] 该产品的价格及其定位是什么??

[答：] Price dependent on performance and volume. Pls. contact our local sales office and distributors.

[问：] 精密模拟微控制器主要由哪几部分构成,其技术指标\制造工艺是什么??目前该产品主要用于哪些领域???

[答：] ADuCxxx integrated ADC,DAC,MUX,Temperature sensor,Voltage reference,buffer amplifier, PGA..You can use it in everywhere you need to perform A-D and D-A convert

[问：] 如何远程在线更新程序

[答：] Just support in system program.

[问：] 采用的内核，是否已经批量供货以及芯片的价格

[答：] Yes. Price dependent on performance and volume.

[问：] MicroConverter用的是i51的内核吗？

[答：] We have ordinary 8052 core,1-cycle 8052 core and ARM core .The 8052 core can reach 20 MIPs and the ARM core can reach 45MIPs.For more detailed information ,please find it in the datasheet.Thanks!

[问：] 请提供价格和开发方法。

[答：] We have ASPIRE IDE in the development tools and you can also use Keil .

[问：] 希望介绍一些医用开发的例子。

[答：] you can call our China suupport center to discuss your application then we can give your some suggestions.

[问：] AD7538使用过程中输出小信号是毛刺比较多！如何解决?

[答：] Pls. check you application or call our support center for help.

[问：] 和TI的MSP430系列CPU的12位AD、DA相比，ADI有什么优势？ADE7758批量供货什么时候？有没有参考程序？

[答：] ADuC has higher resolution ADC, higher DC-parameters, richer analog resources, e.g. excitation source, channel number, PWM output. For digital performance, ADuC is faster, have more memory, more power on reset. For the cost, ADuC should be lower than the same performance ones.

[问：] 请问精密在处理器性能中有何体现？模拟微控制器的主要应用场合有哪些？谢谢！