System for calibrating integrated circuit filters

Details System for calibrating integrated circuit filters System for calibrating integrated circuit filters

2007-08-14

2007-08-14

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Circuit tuning

Reexamination Certificate

active

11300047

ABSTRACT:
A main signal path filter is calibrated by calibrating a replica filter that tracks parametric changes in the main signal path filter. Programmed values of the replica filter determined during calibration are used to set programmed values in the main signal path filter. The main signal path filter signal does not need to be interrupted while calibration occurs. Power on testing of the main signal path filter and the replica filter can be performed to determine the parametric tracking relationship between the two filters.

REFERENCES:
patent: 6549766 (2003-04-01), Vorenkamp et al.
patent: 6622099 (2003-09-01), Cohen et al.
patent: 7120427 (2006-10-01), Adams et al.

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