A 2.4GHz fully integrated CMOS VCO with direct FM/FSK modulation capability

被引：10

作者：

Choi, YB ^{[1
]}

Teo, TH ^{[1
]}

Yeoh, WG ^{[1
]}

机构：

[1] Inst Microelect, Singapore, Singapore

来源：

2003 IEEE CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS | 2003年

关键词：

D O I：

10.1109/EDSSC.2003.1283509

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：

The design and implementation of a 2.4GHz fully Integrated VCO with direct FM/FSK modulation capability is presented. The VCO utilizes an accumulation mode MOS (aMOS) varactor as the major frequency tuning element. A tiny aMOS varactor of similar geometry is also incorporated in parallel for direct baseband modulation. Abrupt CV profile of aMOS varactor is linearized through direct coupling to the full-swing of the VCO tank circuit. Concept of this large-signal CV linearization Is fully elaborated. The VCO prototype has been fabricated in 0.35mum standard CMOS process. Measured at 3.0V supply, the VCO demonstrates 14% tuning range, 920KHz/V linear modulation gain, -103dBc/Hz phase noise at 100KHz offset frequency with core current drawn of approximately 7mA.

引用

页码：175 / 178

页数：4

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