A 5 GHz fast-switching CMOS frequency synthesizer

A 5 GHz PLL-based frequency synthesizer for wireless LAN applications is presented in this paper. The proposed PLL is designed using 0.25 /spl mu/m CMOS technology with 3.3 V power supply. The enlarged VCO tuning range gives extra bandwidth to achieve a reduced locking time. And the buffer amplifier...

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Bibliographic Details
Main Authors: Xiaomin Yang, Wu, T., McMacken, J.
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
CMOS technology
Energy consumption
Frequency synthesizers
Phase locked loops
Phase noise
Power supplies
Tuning
Voltage-controlled oscillators
Wireless LAN
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Description
Summary:A 5 GHz PLL-based frequency synthesizer for wireless LAN applications is presented in this paper. The proposed PLL is designed using 0.25 /spl mu/m CMOS technology with 3.3 V power supply. The enlarged VCO tuning range gives extra bandwidth to achieve a reduced locking time. And the buffer amplifier provides additional gain to compensate the smaller VCO output amplitude level. The phase noise at 1 MHz offset is -120 dBc/Hz, and the power consumption is 30 mw.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2002.1011689