A Second-Order Antialiasing Prefilter for a Software-Defined Radio Receiver

被引：6

作者：

Mirzaei, Ahmad ^{[1
]}

Chehrazi, Saeed ^{[2
]}

Bagheri, Rahim ^{[3
]}

Abidi, Asad A. ^{[2
]}

机构：

[1] Broadcom Corp, Irvine, CA 92619 USA

[2] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

[3] WiLinx Inc, Carlsbad, CA 92008 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2009年 / 56卷 / 07期

关键词：

Antialiasing prefilter; integration sampler; jitter; noise; reconfigurable; receiver; sinc function; software-defined radio (SDR); CIRCUIT; JITTER; CLOCK; CMOS;

D O I：

10.1109/TCSI.2008.2007062

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 new architecture is presented for a sinc2(f) filter intended to sample channels of varying bandwidth when surrounded by blockers and adjacent bands. The sample rate is programmable from 5 to 40 MHz, and aliases are suppressed by 45 dB or more. The noise and linearity performance of the filter is analyzed, and the effects of various imperfections such as transconductor finite output impedance, interchannel gain mismatch, and residual offsets in the channels are studied. Furthermore, it is proved that the filter is robust to the clock jitter. The 0.13- μm CMOS circuit consumes 6 mA from a 1.2-V supply. © 2009 IEEE.

引用

页码：1513 / 1524

页数：12

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