Methods and apparatus for noise shaping a mixed signal power output
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United States of America Patent
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Oct 2, 2001
Issued Date -
N/A
app pub date -
Jan 11, 2001
filing date -
Mar 9, 1999
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Abstract
A signal processing circuit and method for processing an input signal are described. The circuit includes a frequency selective network, an amplification stage, and at least one continuous-time feedback path from the output of the amplification stage to the frequency selective network. The amplification stage includes a switching amplifier and an analog amplifier. Switching circuitry alternately enables the switching and analog amplifiers for processing of the input signal.
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