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关于芯片选择和电路设计

Other Parts Discussed in Thread: VCA810

要放大至少1000倍,准备使用三到五级的运放,频带带宽至少大于200MHz,小于40MHz,有良好的衰减特性。可以选择哪些芯片
其中這里的增益是可调的,所以应该有一级是压控可变增益运放。