Mixed analog/digital, FIR/IIR realization of a linear-phase lowpass filter

被引：3

作者：

Huang, QT

机构：

[1] Integrated Systems Laboratory, Swiss Fed. Institute of Technology

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1996年 / 31卷 / 09期

关键词：

D O I：

10.1109/4.535423

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A 5 kHz linear-phase lowpass filter is implemented in a 2-mu m BiCMOS technology as a combination of sigma-delta front-end, a digital shift register, a switched capacitor (SC) summer circuit with 50 input capacitors, and an SC biquad running at a 1 MHz clock, The measured group delay variation in the passband is less than 1 CLS and the measured total harmonic distortion (THD) is -80 dB for an input sine wave amplitude of 0.7 V at 1 kHz. The circuit consumes 80 mW from +/-5 V supply and measures 8.12 mm(2) without pads.

引用

收藏

页码：1347 / 1350

页数：4

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