Loop bandwidth control for fractional-n frequency synthesizer

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12166493
APP PUB NO 20240333291A1
SERIAL NO

18190501

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Abstract

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In an example, a system includes a phase-locked loop including a charge pump coupled to a phase frequency detector, a low-pass filter coupled to the charge pump, and a VCO coupled to the low-pass filter, where the charge pump is configured to provide a charge pump current to the low-pass filter. The system also includes a current source configured to provide a bias current to the charge pump. The system includes a first bias compensation circuit configured to increase the bias current responsive to a control voltage provided to the VCO being within a first range. The system also includes a second bias compensation circuit configured to decrease the bias current responsive to the control voltage provided to the VCO being within a second range.

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Patent Owner(s)

Patent OwnerAddress
TEXAS INSTRUMENTS INCORPORATED12500 TI BOULEVARD M/S 3999 DALLAS TX 75243

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Smith, Ryan Alexander Lucas, US 7 0

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