Low noise, low power subsampling receiver
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United States of America Patent
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May 28, 2013
Grant Date -
Dec 2, 2010
app pub date -
May 28, 2010
filing date -
May 28, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
Techniques for a receiver includes a low noise amplifier, a Q-enhanced bandpass filter on a chip, and an analog to digital converter (ADC) at a sub-sampling speed suitable for an intermediate frequency (IF) signal. In some embodiments, a temperature compensation circuit is included. The receiver has an effective noise level less than 7 dB. In some embodiments a 1-bit ADC is used. In some of these embodiments, one or more switches in the ADC are inverted to cancel charge injection.
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