8 mA, 3.8 dB NF, 40 dB gain CMOS front-end for GPS applications

被引：0

作者：

Svelto, F. ^{[1
]}

Deantoni, S. ^{[1
]}

Montagna, G. ^{[1
]}

Castello, R. ^{[1
]}

机构：

[1] Universita di Bergamo, Pavia, Italy

来源：

Proceedings of the International Symposium on Low Power Electronics and Design, Digest of Technical Papers | 2000年

关键词：

Electric power supplies to apparatus - Global positioning system - Mixer circuits - Varactors;

D O I：

10.1145/344166.344632

中图分类号：

学科分类号：

摘要：

A fully differential 0.35 μm CMOS LNA plus mixer, tailored to a double conversion architecture, for GPS applications has been realized. The LNA makes use of an inductively degenerated input stage and a resonant LC load, featuring 12% frequency turning, accomplished by an MOS varactor. The mixer is a Gilbert cell like, in which an NMOS and a PMOS differential pair, shunted together, realize the input stage. This topology allows to save power, for given mixer gain and linearity. The front-end measured performances are: 40 dB gain, 3.8 dB NF, -25.5 dBm IIP3, 1.3 GHz input frequency, 140 MHz output frequency, with 8 mA from a 2.8 V voltage supply.

引用

页码：279 / 283

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