A low phase noise quad-band CMOS VCO with minimized gain variation for GSM/GPRS/EDGE

被引：9

作者：

Samadian, Sohrab ^{[1
]}

机构：

[1] Skyworks Solut Inc, Irvine, CA USA

来源：

2007 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11 | 2007年

关键词：

D O I：

10.1109/ISCAS.2007.378213

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

A differential LC VCO is presented for commercial quad-band GSM/GPRS/EDGE applications. The VCO is designed in 0.13 mu m CMOS process and meets stringent phase noise specifications. A technique to minimize the VCO gain variation is presented which reduces the K(vco) variation to +/- 14%; more than three times smaller than the previous solutions. This technique results in reduction of the delay mismatch between the amplitude and phase paths in a polar loop transmitter.

引用

页码：3287 / 3290

页数：4

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