The adm system mainly includes a oscillator , a clock generator , an amplifier , a pre - amplif ier , a comparator , an agc ( automatic gain control ) , an adm analyzer & synthesizer , a d / a converter and a lowpass filter 整個系統(tǒng)包括:內置振蕩器,時鐘產(chǎn)生器,放大器,前置運算放大器,比較器, agc (自動增益控制器) , adm分析綜合器,數(shù)模轉換器以及低通濾波器。