说明：  程控滤波器论文,实现了步进为10dB的0到60dB的可调增益,滤波器部分以可编程开关电容滤波器MAX262芯片为核心,实现
(In this paper, the adjustable gain from 0 to 60dB step into 10dB is realized. In the filter part, the programmable switched capacitor filter (MAX262) chip is used as the core, and the realization of the filter is based on the programmable switched capacitor filter (MAX262) chip.)