Method and apparatus for calibrating a gain control circuit

Details Method and apparatus for calibrating a gain control circuit Method and apparatus for calibrating a gain control circuit

1993-07-12

1995-01-10

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Nonlinear

341120, H03M 110

Patent

active

053811488

ABSTRACT:
A system includes a digital-to-analog converter circuit and a calibration circuit. The digital-to-analog converter circuit includes a gain control circuit providing volume adjustment. The system includes a calibration mode and a normal mode of operation. During calibration, a correction value associated with the gain control circuit is measured by the calibration circuit and stored. During normal operation, the stored correction value is combined with the input before provision of the same to the DAC circuit such that, for a predetermined input of midscale code, the desired system output remains constant despite any change in the volume setting of the gain control circuit.

REFERENCES:
patent: 3709309 (1973-01-01), William et al.
patent: 4222107 (1980-09-01), Mrozowski et al.
patent: 4272760 (1981-06-01), Prazak et al.
patent: 4829236 (1989-05-01), Brenardi et al.
patent: 4943807 (1988-04-01), Early et al.
patent: 4975864 (1990-12-01), Sendall et al.
patent: 5057840 (1991-10-01), Ledzius et al.
patent: 5087914 (1992-02-01), Sooch et al.
patent: 5248970 (1993-09-01), Sooch et al.

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