Noise shapers with shared and independent filters and multiple quantizers and data converters and methods using the same
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United States of America Patent
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Jun 1, 2004
Grant Date -
Feb 5, 2004
app pub date -
Aug 2, 2002
filing date -
Aug 2, 2002
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Abstract
A noise shaper including first and second quantizers and first and second feedback paths each providing feedback from a corresponding quantizer output. A loop filter system implements a plurality of transfer functions including a first non-zero transfer function between the first feedback path and an input of the first quantizer, a second non-zero transfer function between the first feedback path and an input of the second quantizer, a third non-zero transfer function between the second feedback path and the input of the first quantizer and a fourth non-zero transfer between the second feedback path and the input the second quantizer.
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