LOW NOISE CHARGE PUMP
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United States of America Patent
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N/A
Issued Date -
Mar 1, 2012
app pub date -
Mar 11, 2011
filing date -
Aug 30, 2010
priority date (Note) -
Abandoned
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Abstract
A delta-sigma modulator is used to generate a dithered clock. The dithered clock is provided as a switching signal to a charge pump to create an output voltage having a reduced noise spectrum. The charge pump may be a regulated charge pump, an unregulated charge pump, a buck charge pump, a boost charge pump, a single phase charge pump, a multi-phase charge pump, or a combination thereof.
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