VARIABLE GAIN AMPLIFIER SYSTEM AND METHOD
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
Jul 26, 2012
filing date -
Jul 28, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention provides a variable gain amplifier system for use in a burst mode receiver, said system comprising an amplifier adapted to amplify a signal; a gain control module; a dc offset compensation module adapted to derive a compensation signal as a function of the amplifier gain. Compared to existing methods for dc offset compensation in variable gain amplifier, the system and method for dc offset compensation allows fast adjustment of rapidly changing dc offsets that occur in applications where the gain of the variable gain amplifier is adjusted rapidly.
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