Time base generator internal voltage-controlled oscillator calib

Details Time base generator internal voltage-controlled oscillator calib Time base generator internal voltage-controlled oscillator calib

1997-08-27

2000-05-16

Assouad, Patrick

Data processing: measuring, calibrating, or testing

Calibration or correction system

Signal frequency or phase correction

369 4432, 331187, H03B 500, H03L 7099

Patent

active

06064947&

ABSTRACT:
A successive approximation system and method for calibrating an oscillator in a time base generator application. An oscillator output frequency is compared to a reference frequency. Control logic calibrates an input control current to the oscillator, one bit at a time, through a digital-to-analog converter. The calibrated input control current corrects central frequency errors in the oscillator. Successive approximation continues until all bits are tested.

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