The AD8322 comprises a digitally controlled variable attenuator of 0 dB to -42 dB, which is preceded by a low noise, fixed gain buffer and is followed by a low distortion high power amplifier. When used in a DOCSIS modem application the AD8322 works with the attenuator available on some demodulators to support the 50 dB range required by DOCSIS. The AD8322 accepts a differential or single-ended input signal. The output is specified for driving a 75 Ohm load, such as coaxial cable, although the AD8322 is capable of driving other loads.

An evaluation board is available for this product and may be ordered using the following product number AD8322-EVAL.

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ad8322是一种低老本的数字操作可变增益缩漂亮的同轴电缆调制解调器驱动等运用而妄想的重大病变肾病- DOCSIS上行线尺度优化。一个8位串行字在42分贝规模内抉择所需的输入增益，使增益变更为6分贝/ LSB。

的ad8322搜罗数字操作可变衰减器的0分贝至42分贝，这是以前有一个低噪声，牢靠增益缓冲器，是由高功率低失真缩漂亮。当运用一个DOCSIS调制解调器运用ad8322作品对于解调器可用衰减器来反对于所需的DOCSIS 50 dB规模。的ad8322接受差分或者单端输入信号。输入驱动75欧姆的负载指定，例彷佛轴电缆，尽管ad8322可能驱动其余负载。

评估板可用此产物可运用如下产物数目ad8322-eval有序。