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1. (WO2010120675) RESISTORLESS FEEDBACK BIASING FOR ULTRA LOW POWER CRYSTAL OSCILLATOR

Pub. No.:    WO/2010/120675    International Application No.:    PCT/US2010/030718
Publication Date: Fri Oct 22 01:59:59 CEST 2010 International Filing Date: Tue Apr 13 01:59:59 CEST 2010
IPC: H03B 5/36
Applicants: MICROCHIP TECHNOLOGY INCORPORATED
MARTIN, Woowai
Inventors: MARTIN, Woowai
Title: RESISTORLESS FEEDBACK BIASING FOR ULTRA LOW POWER CRYSTAL OSCILLATOR
Abstract:
An operational transconductance amplifier (OTA) is used as the DC bias feedback of a crystal oscillator to minimize temperature, voltage and process corner variations thereof, and thereby improve the reliability of crystal oscillator operation at ultra low power levels.