Analog voltage reference generator system
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United States of America Patent
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Jul 30, 1996
Issued Date -
N/A
app pub date -
Aug 3, 1995
filing date -
Dec 23, 1994
priority date (Note) -
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Abstract
A supply voltage detect circuit is described which generates a control signal indicating the status of VCC to be at 5.0 or 3.3 volts. This control signal is used to generate analog reference signals used by A/D and/or D/A circuitry in an audio processing integrated circuit and by other circuitry to control clock frequencies or current drive.
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