A low VtCMOS implementation of an LPLV digital filter core for portable audio applications

被引：0

作者：

Suvakovic, D ^{[1
]}

Salama, CAT ^{[1
]}

机构：

[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2000年 / 47卷 / 11期

关键词：

arithmetic unit; audio applications; CMOS; digital filter; DSP; glitching dissipation; leakage current; low-power; low-threshold; low-voltage;

D O I：

暂无

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 low power 32nd-order digital filter for portable audio applications has been designed and implemented in a single threshold 1-V 0.5-mum CMOS process. The design is full custom, using a combination of conventional CMOS and pass-transistor circuits, optimized for low energy consumption and small area. The filter features up to 16 biquad sections with programmable coefficients and performs fixed-point computations with 16-bit resolution. The measured average energy consumption of 330 pJ per biquad computation indicates that the implementation of complex digital signal professing in a single-threshold low-voltage process is a viable alternative to implementations in multiple threshold processes.

引用

页码：1297 / 1300

页数：4

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