应用自适应过滤器实现信道均衡、消除回声和通过有源噪声控制衰减噪声-Adaptive filter to achieve channel equalization, echo and through the elimination of active noise control noise attenuation

引脚可编程的开关电容滤波器MAX264内部集成了滤波器所需的电阻、电容．无需外接器件，且其中心频率、Q值及工作模式都可通过引脚编程设置进行控制。MAX264可工作于带通、低通、高通、带陷或是全通模式下，其通带截止频率可达140 kHz。 -Abstract：The design of the digital programmable filter which mainly consists of variable——gain amplifier AD603 and a universal