基于CMOS开关电容技术的CAS解调电路设计

The CAS Decoder Circuit Design Based on CMOS Switch Capacitor Technology

基于双二阶 CMOS开关电容滤波器和隔离串联技术 ,应用抗混叠滤波技术和平滑滤波技术 ,采用 UMC 0 .5μm CMOS工艺实现了 CAS解调电路的设计 ,并保证了解调的灵敏度。仿真和设计结果表明 ,该解调电路具有良好的稳定性和灵敏度 。

Based on the switch capacitor filter and insulation technology in series, the CAS decoder is presented in UMC 0.5 μm CMOS technology. The unmixed filter and smooth filter technique is applied to ensured the sensitivity. Simulations and design results show that the sensitivity and stability are excellent. The proposed circuits can be widely applied in analog signal processing circuits.