具有自适应IIP3和功耗的阻塞警戒通道选择滤波器

2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers Pub Date : 2006-09-18 DOI:10.1109/ISSCC.2006.1696242

A. Yoshizawa, Y. Tsividis

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引用次数: 5

摘要

提出了一种降低通道选择滤波器平均直流功率的动态偏置方案。一个自适应IIP3, 5阶巴特沃斯低通滤波器在0.18 μ m CMOS工艺和1.8V电源电压下实现。滤波器静态电流为1.2mA，通道外IIP3电压为-5dBV。当阻滞器电平为-13dBV时，电源电流增加到2.7mA, IIP3增加到+20dBV

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A Blocker-Vigilant Channel-Select Filter with Adaptive IIP3 and Power Dissipation

A dynamic biasing scheme that reduces the average dc power of channel-select filters is presented. An adaptive IIP3, 5th-order Butterworth low-pass filter is implemented in a 0.18mum CMOS process with a 1.8V supply voltage. The filter quiescent current is 1.2mA, with a -5dBV out-of-channel IIP3. With a blocker level of -13dBV, the supply current increases to 2.7mA and the IIP3 increases to +20dBV

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2006 IEEE International Solid State Circuits Conference - Digest of Technical Papers

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