| [问：hwyuyu] 有没有以太网控制器和光纤收发器集成在一起的芯片,且功耗低,和单片机采用并行口传送数据,接口方便?若有,其型号是什么,生产厂家是谁?谢谢! |
| [答：adi] There is no such chip at this moment. The best way to do this is use FPGA and tranceiver to do this function. @[01-10-25 上午 10:39:07] |
[问：三极管] PIN管在低温下的响应度明显降低，如何补偿？
|
| [答：adi] You can use the log amp to compensate this. The parts is AD8304. @[01-10-25 上午 10:40:42] |
| [问：janeslee] 提供16bIt 8信道ADC和至少2信道DAC外围的用于EDFA的DSP是哪种型号？ADI提供的TEC控制器和LINEAR公司的TEC控制器LTC1923相比有何优点？还需要签保密协议吗？ |
| [答：adi] ADuC812. The comparison table please contact ADI local office for detail @(86)755-3783431. @[01-10-25 上午 10:41:51] |
| [问：三极管] AD7814的采集数据处理：负温度如何用C51处理？ |
| [答：adi] The C51 can emulate the SPI bus to cannnect to AD7814. This chip can handle temperature from -55~+125 @[01-10-25 上午 10:46:18] |
| [问：wqepq] 请问有没有用于突发式光接收和发射的芯片，请具体介绍。 |
| [答：adi] The chip is ADN2841 on the transmit side. ADN2809 PA+CDR can support busrt mode on the receive side. @[01-10-25 上午 10:48:25] |
| [问：Iceman_Li] 想知道EDFA中用到的全部控制电路，特别是怎样对EDFA的波长进行控制？ |
| [答：adi] Please call ADI local office @(86)755-378-3431 for more details. @[01-10-25 上午 10:49:50] |
[问：coopenniu] I want to know how to provide overcurrent or overvoltage surge protection against transient or DC overloads in LD drive circuit of EDFA .
THANKS VERY MUCH!
|
| [答：adi1] Please find application note AN-397 on ADI website or contact ADI local office people.Thanks @[01-10-25 上午 10:52:53] |
| [问：liyue] ADN 2809 的速度是否可以连续变化? |
| [答：adi] No. We will come out this chip soon. @[01-10-25 上午 10:53:08] |
| [问：lgquan] 请问ADI公司在用于激光器驱动方面有哪些好的解决方案？ |
| [答：adi] The major advantage is ADI provide the dual loop control can compensate the LD aging, temperature drift, and LD"s lot to lot variation. @[01-10-25 上午 10:55:36] |
[问：三极管] 在EDFA控制中，ADI公司能否提供数字控制方面的资料或解决方案。
其关键芯片是哪种型号？ |
[答：adi1] 可以，在我们提供的Presentation 中，你可以找到一些相关资料，你也可以联系ADI Local office people 得到更多的信息。
主要有ADuC812/ADSP-21065L/ADSP-2191, 以及其它的AD/DA控制芯片 @[01-10-25 上午 10:56:07] |
| [问：三极管] ADuC812的性能如何？他集成的是51内核吗？能否提供他的比较详细的中文资料或成功程序范例？ |
| [答：adi] Aduc812 provide 12 bits ADC/DAC quality. Used i8052 core. Please contact ADI local office for more details @(86)755-3783431. @[01-10-25 上午 10:56:50] |
| [问：Alain Wu] There"s a price war here in Taiwan for the LDD, what is ADI advantage in the cost side? Could ADI meet the price under 4USD for the ADN2841 at any quantity? |
| [答：adi1] ADI is competitive on price. Please contact Charles Lee in our Taiwan office @886-2-2719-5612 x222 for detailed pricing in individual Taiwanese opportunties. @[01-10-25 上午 10:57:45] |
| [问：dengyinghui] 请问有无突发方式的激光器驱动芯片？ |
| [答：adi] Yes, ADN2841/47 can support the burst mode. @[01-10-25 上午 10:58:44] |
| [问：zhangrenbiao] LOG放大器和TIA有何区别？可以互相代替吗？ |
| [答：adi1] 在我们提供的网上资料里，你可以发现TIA和LOG的特点和对比。基本上两种运放不可以相互替换。 @[01-10-25 上午 10:59:30] |
| [问：iceman_li] 制冷电流需要2A怎么办？ |
| [答：adi] on the ADN8830 you can set the maximum current to 2A. ADN8830 can support up to 4A. @[01-10-25 上午 11:00:17] |
| [问：deng] ADI公司的阻抗变换放大器和那些激光二极管（PIN）匹配？直接耦合还是交流耦合？ |
| [答：adi1] Any PIN LD is ok. DC is better @[01-10-25 上午 11:01:36] |
| [问：benniao] 新产品ADN2820能否适用于正或负工作的激光二极管？ |
| [答：adi] positive voltage. @[01-10-25 上午 11:02:02] |
| [问：jackton] 请告知ADN2841的价格和供货周期。 |
| [答：adi] Please call ADI local office for more detail @ (86)755-3783431 @[01-10-25 上午 11:03:50] |
[问：southkid] 关于EDFA的电回路中,ADI可提供哪些完整的solution??
在SDH网络中,ADI有哪些的组件可供应用 |
| [答：adi1] We just provide main control solution in EDFA, you can find these simple information on the presentation online or conatct Charles Lee of TaiWan office (886-2)27195612-222 @[01-10-25 上午 11:04:48] |
| [问：Snow_Lee] 在使用ADUC812时，电路设计应注意哪些问题？因为我们在使用过程中，发现有时ADUC812和模拟电路互相干扰，AD采集管脚有较大的脉冲干扰，还有FLASH中的数据不稳定，甚至发生ADUC812工作不正常现象，如无法下载代码，或在运行情况下也可以下载程序代码。 |
| [答：adi] The reset circuits is very important. You have to ADM810 as the reset chip. Layout also important. Please contact ADI local office for more details @(86)755-3783431 @[01-10-25 上午 11:05:34] |
| [问：三极管] ADI的哪一款芯片能够作为EDFA应用中的波长控制器？谢谢！ |
| [答：adi1] 我们现在有TEC controller ADN8830，而且我们现在正在开发一颗用于连续波长控制器的芯片。 @[01-10-25 上午 11:07:27] |
| [问：zhangrenbiao] TIA的输入阻抗能够调整吗？ |
| [答：adi] No. @[01-10-25 上午 11:10:02] |
| [问：dengyinghui] 请问ADN2841对激光器进行开关控制的响应时间是多少？ |
| [答：adi1] The typical response time is 10us. You can find it in datasheet @[01-10-25 上午 11:12:56] |
| [问：filter] 请问有没有光开关驱动电路的芯片？要求：电压在正负7伏跳变，且跳变后可回到0伏，谢谢！ |
| [答：adi] CIt"s dependent on the optical switch specifications such as the switch time, current ... If there is only one optical switch, Op-Amp(such as OP-184) is the best. But if there is multi-channels optical switches, AD5532(14 bits/32 channels DAC) @[01-10-25 上午 11:15:07] |
| [问：范勇] 光电开关的电路设计中怎样才能够有效的提高速度？ |
| [答：adi1] 这需要考虑多方面的因素。 例如采用高速高精度的DAC/ADC，和高速的控制器（如ADI 的DSP）等 @[01-10-25 上午 11:18:21] |
| [问：zhangrenbiao] TIA作为接收放大器，噪音是很重要的。请问ADN2820的噪音指标是多少？在使用上如何降低噪音？ |
| [答：adi1] The input corrent noise is 1.2uA for AD2820. @[01-10-25 上午 11:19:35] |
| [问：benbao] 为了得到良好的PSRR，如何来决定耦合电容和串联电阻的数值？和激光二极管的型号有关吗？ |
| [答：adi] It"s complicate question, please contact adi local office. @[01-10-25 上午 11:20:27] |
| [问：范勇] 请问新产品ADN2820的有关指标？ |
| [答：adi] The current noise density for ADN2820 is 1.2uA. Please contact adi local office for more details. @[01-10-25 上午 11:24:29] |
| [问：benbao] 请详细说明ADN2809的CDR结构 |
| [答：adi] Please call adi local office for more details. @[01-10-25 上午 11:25:05] |
| [问：Cheng CAI WEN] 请问ADN2841(APC)function的Imod conversion time ? Thank you |
| [答：adi1] Please contact TaiWan office people, let us know your correct requirement. Thanks. @[01-10-25 上午 11:27:33] |
| [问：dengyinghui] "ADN2841对激光器进行开关控制的响应时间", My mean is the time of the switch of the "100 mA bias Current ".Thanks! |
| [答：adi] The typical time 10us. @[01-10-25 上午 11:28:09] |
| [问：benbao] ADN2841 LDD能直接驱动激光二极管？能和那些型号的激光二极管使用？ |
| [答：adi1] 可以，可以采用DC/AC两种方式驱动。 基本上大部分激光器都可以用， 如Mishubishi FU-445 @[01-10-25 上午 11:29:29] |
| [问：filter] 请介绍一下ADI有关光开关驱动芯片的具体型号或者相关的资料！谢谢！ |
[答：adi] ADN2841(+5V)/ADN2847(+3.3V) -- up to OC-48.
ADN2848(+3.3V) -- OC-3~OC-12.
ADN2843(+3.3V) -- OC3~OC-192. @[01-10-25 上午 11:31:41] |
| [问：jack] ADuC812能否直接和低阻抗或高阻抗模拟信号（DAC）相接？需要通过缓冲器吗？ |
| [答：adi1] ADuC812 如果和低阻抗的DAC相连，通常需通过一个运放/Buffer. @[01-10-25 上午 11:32:17] |
| [问：范勇] 在光开关的电路设计中怎样有效消除高速转换和小信号时的噪音？ |
| [答：adi] Typically in MEMS switches used the Sallen-key filter to reduce the system noise. @[01-10-25 上午 11:33:52] |
| [问：刘新峰] ADN2841和ADN2847除了工作电压不同外，其它性能有无差别？ |
| [答：adi] The ADN2847 can up to 3.3Gbps. ADN2841 just can up to 2.7Gbps. @[01-10-25 上午 11:35:21] |
| [问：刘新峰] 用DSP来控制EDFA和用uConverter来控制EDFA在性能，价格（单个上和总体上）和编程方便性等方面上有什么不同？ |
| [答：adi1] 如果仅从价格上相比， uconverter无疑是首选，它的价格约US$6.但DSP的控制速度快，可以更好地满足一些需高速控制的EDFA的需要。uConverter的速度就比DSP要低很多。在编程上，uConverter也很简单，无需外加任何的硬件开发工具，而且可以在线升级 @[01-10-25 上午 11:36:24] |
| [问：范勇] 请问ADI在MEMS的控制方面有什么器件和方案？ |
| [答：adi] Typically, those parts are: ADC/DAC, Voltatage reference, Instrumentation Amplifier, DSP, low Rds-ON switches. @[01-10-25 上午 11:37:29] |
| [问：jack] 幻灯片上显示，ADuC812好像没有温度传感器和控制电路，对吗？ |
| [答：adi] ADuC812 has the temperature sensor inside the chip. The temperature range from -40~+85 degree C. The accuracy is +/- 2 degree C. @[01-10-25 上午 11:39:23] |
| [问：dengjiao] TIA，比如AD8015的动态范围是多少？请举出它的灵敏度和峰值电流。 |
| [答：adi] The maximum input range is +/-350uA. The sensitivity is -36dBm @ 155Mbps. @[01-10-25 上午 11:43:46] |
| [问：dengjiao] 能介绍双回路中的温度补偿廽路吗？如何选取外电路组件的数值？温度补偿的效果如何？ |
| [答：adi] Please call ADI local office for more details. @[01-10-25 上午 11:45:53] |
| [问：filter] 请介绍一下AD5532(14 bits/32 channels DAC）的具体指标！ |
| [答：adi] Please call ADI local office for more details. We will provide the data sheet to you then. @[01-10-25 上午 11:47:20] |
| [问：dengyinghui] If ADN2841"s the typical response time is 10us,how can I use it in the PON system? |
| [答：adi1] You also need to use Microconverter such as ADuC812 in your control circuit. Please contact ADI local office @[01-10-25 上午 11:49:31] |
| [问：刘新峰] 通过MPD二极管可以控制激光二极管，MPD有殊的要求吗？ |
| [答：adi] No, usually, the MPD is come with the LD. Use ADI dual loop control, you don"t need to worry about its specifications. @[01-10-25 上午 11:49:58] |
| [问：fantianchen] 对于设计整个回路，需要注意那些问题（核心问题）。 |
| [答：adi1] 因为该问题涉及的因素比较多，请你联系ADI本地的工程师。 @[01-10-25 上午 11:50:56] |
[问：iceman_li] 贵公司的产品最大输出电流为多大？能直接驱动PUMP而不必加MOSFET或三极管？
|
| [答：adi] If you are asking ADN8830, you can use external MOSFET to drive the current as high as want. @[01-10-25 上午 11:51:59] |
| [问：lgquan] ADI公司有哪些限幅放大器芯片？ |
| [答：adi1] 我们提供放大器产品的选型手册，请联系ADI本地工程师，或你可以到ADI网页 www.analog.com 上下载 @[01-10-25 上午 11:52:50] |
| [问：iceman_li] ADuC812通过一个片子直接驱动TEC，请问这个片子是什么片子？ |
| [答：adi1] 该芯片是ADI 的ADN8830,该芯片已有样片。 @[01-10-25 上午 11:54:06] |
| [问：刘新峰] 经过滤波的光眼比没有滤波的好得多，请介绍一下光学滤波器的情况。 |
| [答：adi] Please contact ADI local office. @[01-10-25 上午 11:54:50] |
| [问：jackton] DSP ADSP-21065L和ADuC812的内核是否相同？它们的编程格式一样吗？ |
| [答：adi1] 完全不同。 ADSP-21065L是ADI的DSP内核，而ADuC812是 8052的内核。因此，两者的编程不一样，但编译工具都支持C语言 @[01-10-25 上午 11:57:41] |
| [问：zhangrenbiao] ADN2809的晶体振荡器的频率稳定度要求是多少？ |
| [答：adi] Please call us local office, we will provide the data sheet and detail testing specifications to you. @[01-10-25 上午 11:58:44] |
| [问：范勇] EDFA的控制锌片主要有哪些？指标如何？ |
| [答：adi1] 你可以参考网上播放的PowerPoint文件中相关页。或联系ADI本地工程师 @[01-10-25 下午 12:01:26] |
| [问：filter] 请问Adi有没有2x2光开关驱动控制的芯片系列或请介绍其它系列产品，谢谢。 |
| [答：adi] You can use the ADC/DAC and DSP to do this. If you need more information ,please contact our local office for details. @[01-10-25 下午 12:01:33] |
| [问：范勇] 在光开关电路中怎样解决数字电路的速度和模拟电路的准确性的矛盾？ |
| [答：adi] The system layout is the most important. If you like to know how it works, please contact us. @[01-10-25 下午 12:04:16] |
| [问：范勇] 有能够实时控制晶体双折射改变的电路方案或器件吗？指标如何？ |
| [答：adi] Please call us that we can discuss with you on this for more details. @[01-10-25 下午 12:05:47] |
| [问：filter] 请问Adi有没有功率可调谐光放大器系列产品！ |
| [答：adi1] ADI不生产该类产品，我们只提供一些控制芯片给设计生产这些产品的公司 @[01-10-25 下午 12:06:19] |
| [问：dreamfly] 请问：怎么样可以获得公司产品的具体资料？ |
| [答：adi] You can link up to our optical web as: http://www.analog.com/industry/communications/optical for more details. If you need any preliminary data sheet or samples, please contact our local office. @[01-10-25 下午 12:07:43] |
| [问：范勇] ADN8830的最快反应速度是多少？编程为什么格式？ |
| [答：adi] It"s about 40nS @ 2000PF capacitance load. It doesn"t need any sofware to program it. @[01-10-25 下午 12:14:06] |
| [问：caolong] 是否可以提供光通信方面的产品资料 |
| [答：adi] Yes, please contact our local office. @[01-10-25 下午 12:15:07] |
| [问：optwish] 贵公司在国内有没有专门的关于光通讯控制电路的培训？ |
| [答：adi1] 我们有计划给客户一些光通信控制电路方面的培训，或送出一些培训资料给客户。如果你有需要，请联系ADI 的本地人员。 @[01-10-25 下午 12:17:19] |
