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音频放大器



Hi Ti Team,

我司新项目需要选型一颗麦克风前置放大器芯片,主要参数规格需要满足如下参数,请推荐,谢谢。

麦克风前置放大器芯片
Gain Range: -18dB to +80dB, 0.1dB per Step;
Nominal level:-60dBV,+4dBu,-10dBV
CMRR:>70dB
Equivalent input noise: <-120 dBV (1.0 μVrms) at +40 dB input gain