Area efficient baseband filter
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United States of America Patent
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Oct 13, 2015
Grant Date -
Jun 11, 2015
app pub date -
Dec 11, 2013
filing date -
Dec 11, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An area efficient baseband filter is disclosed. In an exemplary embodiment, an apparatus includes a current to voltage (I-V) filter configured to receive an input current signal at an input port and generate a filtered output voltage signal at an output port based on a feedback transconductance. The input current signal comprises an input DC current in addition to a signal current. The apparatus also includes a feedback circuit connected between the output port and the input port, the feedback circuit having at least one transistor configured to couple the input DC current to a signal ground and to provide the feedback transconductance for the I-V filter.
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