Sigma-delta modulator with feedback for power amplifiers
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United States of America Patent
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Dec 8, 2009
Grant Date -
Jul 31, 2008
app pub date -
Nov 19, 2007
filing date -
Nov 21, 2006
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Abstract
The invention concerns an electronic circuit comprising a sigma-delta modulator and a power amplifier connected downstream thereof, wherein there is provided a feedback circuit (207) which is coupled between an output of the sigma-delta modulator and an input of the sigma-delta modulator and which includes an emulation of the signal path between the output of the sigma-delta modulator and the output of a power amplifier (107) connected downstream of said sigma-delta modulator.
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