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JSSC 2006第3期RF & Wireless0.18-μmClock Generation

A 3-to-8-GHz Fast-Hopping Frequency Synthesizer in 0.18-/22m CMOS Technology

一款采用0.18-μm CMOS技术的3至8 GHz快速跳频合成器,具有1纳秒切换时间和37 dB边带抑制。
0.18-μm CMOS, 2.2-V, 48 mW, 1-ns switching time, 37 dB sideband rejection
频率合成器快速跳频单边带混频器CMOS技术线性度
单边带(SSB)混频器生成3至8 GHz的七段时钟
采用高效频率合成技术实现中心频率周围的平衡频段
双退化拓扑结构提高SSB混频器的线性度
Abstract
A frequency synthesizer incorporating one single- sideband (SSB) mixer generates seven bands of clock distributed from 3 to 8 GHz with 1-ns switching time. An efficient frequency synthesizing technique producing balanced bands around one center frequency is employed, and the SSB mixer uses double degeneration topology to increase the linearity. Fabricated in 0.18- m CMOS technology, this circuit achieves a sideband rejection of 37 dB while consuming 48 mW from a 2.2-V supply.