AD8322

过期

5 V有线电视(CATV)线路驱动器,内置大步进输出功率控制功能

Viewing:

概述

AD8322是一款低成本、数字控制式可变增益放大器,并针对同轴线路驱动应用进行了优化,如根据MCNS-DOCSIS上行标准设计的电缆调制解调器等。所需输出增益由8比特串行字决定,输出增益范围为42 dB,增益变化为6 dB/LSB。

AD8322内置0 dB至-42 dB的数字控制式可变衰减器,衰减器前面接低噪声、固定增益缓冲器,后面接低失真、高功率放大器。在DOCSIS调制解调器应用中,AD8322与一些解调器上提供的衰减器配合,支持DOCSIS所要求的50 dB范围。AD8322接受差分或单端输入信号。输出可驱动75 Ω额定负载,如同轴电缆等,不过也可驱动其它负载。

本产品提供评估板,请用以下器件编号订购:AD8322-EVAL

AD8322
5 V有线电视(CATV)线路驱动器,内置大步进输出功率控制功能
pdp-image-unavailable
添加至 myAnalog

将产品添加到myAnalog 的现有项目或新项目中(接收通知)。

创建新项目
提问

参考资料

了解更多
添加至 myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

创建新项目

软件资源

找不到您所需的软件或驱动?

申请驱动/软件

评估套件

EVAL-AD8322

AD8322 Evaluation Board

产品详情

The AD8322 is a low cost digitally controlled variable gain amplifier optimized for coaxial line driving applications such as cable modems that are designed to the MCNS-DOCSIS upstream standard. A 8-bit serial word determines the desired output gain over a 42 dB range resulting in gain changes of 6 dB/LSB. Full data on the AD8322 and the evaluation board features is available in the AD8322 data sheet available from Analog Devices and should be consulted in conjunction with this Technical Note when using the Evaluation Board. On-board components include an input transformer to convert single ended input signals into a differential signal, a diplexer to allow insertion into a cable modem system, and various options for input and output terminations.


EVAL-AD8322
AD8322 Evaluation Board

最新评论

需要发起讨论吗? 没有关于 AD8322的相关讨论?是否需要发起讨论?

在EngineerZone®上发起讨论

近期浏览