用于无线传感器应用的6.5 GHz CMOS FSK调制器

2002 Symposium on VLSI Circuits. Digest of Technical Papers (Cat. No.02CH37302) Pub Date : 2002-06-01 DOI:10.1109/VLSIC.2002.1015079

Seonghwan Cho, A. Chandrakasan

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引用次数: 16

摘要

提出了一种适用于低功耗无线传感器网络的6.5 GHz FSK调制器。该调制器采用闭环直接VCO调制来实现高数据速率，可变环路带宽技术用于快速启动速率和/spl Sigma/-/spl Delta/以降低分频器的功耗，并具有良好的通道选择分辨率。该合成器采用0.25 /spl mu/m CMOS，启动时间为20 /spl mu/s，有效数据速率为2.5 Mbps，功耗为22 mW。

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A 6.5 GHz CMOS FSK modulator for wireless sensor applications

A 6.5 GHz FSK modulator suitable for low power wireless sensor network is presented. The modulator employs closed loop direct VCO modulation to achieve high data rate, variable loop bandwidth technique for fast start-up rates and /spl Sigma/-/spl Delta/ for reduced power consumption in the divider with fine resolution in channel selection. The synthesizer, implemented in 0.25 /spl mu/m CMOS, achieves 20 /spl mu/s start-up time with an effective data rate of 2.5 Mbps while consuming 22 mW.

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2002 Symposium on VLSI Circuits. Digest of Technical Papers (Cat. No.02CH37302)

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