Systems for and methods of using a mirrored wideband baseband current for automatic gain control of an RF receiver
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United States of America Patent
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May 16, 2017
Issued Date -
N/A
app pub date -
Dec 20, 2013
filing date -
Dec 20, 2013
priority date (Note) -
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Abstract
Disclosed herein are systems for and methods of using a mirrored wideband baseband current for automatic gain control of an RF receiver. In an embodiment, a system includes an RF receiver having an adjustable gain and being configured to direct convert a received wideband RF signal to a wideband baseband current signal. The system further includes a current replicator coupled to the receiver and configured to generate a mirrored current of the wideband baseband current signal. The system further includes a wideband signal-level detector configured to receive the mirrored current from the current replicator, and to measure and output a signal-level value of the mirrored current. The system further includes an automatic gain-control circuit configured to receive the signal-level value from the wideband signal-level detector, and to adjust the gain of the receiver based at least in part on the received signal-level value.
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