SWITCHED-CAPACITOR HIGH-Q BANDPASS-FILTERS FOR IF APPLICATIONS

被引：21

作者：

SONG, BS ^{[1
]}

GRAY, PR ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT ELECT ENGN & COMP SCI,BERKELEY,CA 94720

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1986年 / 21卷 / 06期

关键词：

ELECTRIC FILTERS; BANDPASS - INTEGRATED CIRCUITS - SIGNAL RECEIVERS;

D O I：

10.1109/JSSC.1986.1052631

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：

Experimental results for a sixth-order switched-capacitor bandpass filter with a selectivity Q of 55 at a center frequency of 3. 1 MHz are presented. A simple noise analysis of active bandpass filters composed of coupled identical resonators is introduced to explain the dynamic range reduction in high-Q active filters resulting from loose high-Q couplings between resonators. Theoretical predictions of noise in coupled resonator-type bandpass filters agree well with measured results. The prototype chip occupies 2 mm**2 and dissipates 45 mW with a single 5-V supply.

引用

页码：924 / 933

页数：10

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