System and method for a mixer
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United States of America Patent
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Jan 10, 2017
Grant Date -
Jul 23, 2015
app pub date -
Jan 21, 2014
filing date -
Jan 21, 2014
priority date (Note) -
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Abstract
In accordance with an embodiment, a circuit includes a mixer having a signal input port, a local oscillator input port and an output port, a lowpass filter circuit having an input coupled to the output port of the mixer and a terminal configured to be connected to a shunt capacitor, and a difference circuit having a first input coupled to the output port of the mixer, and a second input coupled to an output of the lowpass filter. The output of the difference circuit substantially rejects a DC signal component at the output port of the mixer.
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