A-94dBc/Hz@100kHz, fully-integrated, 5-GHz, CMOS VCO with 18% tuning range for Bluetooth applications

被引：48

作者：

Samori, C ^{[1
]}

Levantino, S ^{[1
]}

Boccuzzi, V ^{[1
]}

机构：

[1] Lucent Technol, Agere Syst, Murray Hill, NJ 07974 USA

来源：

PROCEEDINGS OF THE IEEE 2001 CUSTOM INTEGRATED CIRCUITS CONFERENCE | 2001年

关键词：

D O I：

10.1109/CICC.2001.929755

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 5-GHz, fully monolithic Voltage-Controlled Oscillator (VCO) for Bluetooth wireless transceivers is demonstrated in a 0.25 mum CMOS technology using accumulation mode varactors and spiral inductors. An 18% tuning range was measured for only 2.5 V tuning-voltage variation. The phase noise was -94 dBc/Hz at 100 kHz frequency offset with 40 kHz 1/f(3) corner frequency. These low values are limited by the up-conversion of flicker noise due to varactor amplitude-to-frequency conversion and to the modulation of the varactor bias point. This explanation is verified by simulations and measurements. The circuit draws 5.5 mA from a 2.5 V power supply.

引用

页码：201 / 204

页数：4

共 13 条

[1] A 2-GHz low-phase-noise integrated LC-VCO set with flicker-noise upconversion minimization [J].