公开(公告)号：US10734961B2

公开(公告)日：2020-08-04

申请号：US16130435

申请日：2018-09-13

Applicant: NXP B.V.

Inventor： Sebastien Robert ,  Fabian Rivière ,  Franck Bisson ,  Christophe Olivier Mertens ,  Samuel Becqué

IPC: H03G3/30 ,  H04B1/10 ,  H04B1/18

Abstract: A receiver includes at least a first amplifier configured to receive a received signal and provide a first amplified signal based thereon, a mixer configured to receive the first amplified signal and provide an intermediate frequency signal based thereon and a second amplifier configured to receive the intermediate frequency signal and provide a second amplified signal based thereon. An automatic gain controller for the receiver is configured to, based on a first overload signal indicative of a first frequency range of the first amplified signal having one or more frequency components exceeding a first maximum signal power threshold and a second overload signal indicative of a second frequency range, narrower than the first, of the second amplified signal having one or more frequency components exceeding a second maximum signal power threshold, provide for control of a respective gain of one or both of the first amplifier and the second amplifier.

公开(公告)号：US10581474B1

公开(公告)日：2020-03-03

申请号：US16270807

申请日：2019-02-08

Applicant: NXP B.V.

Inventor： Sebastien Robert ,  Fabian Riviere ,  Franck Bisson ,  Nguyen Trieu Luan Le

IPC: H04B1/00 ,  H04B1/10 ,  H04B17/345 ,  H04B17/318

Abstract: Wireless receivers and related methods with interferer immunity are disclosed. The receiver includes a receive (RX) front-end, a power level detector, and an automatic gain controller (AGC). The RX front-end includes circuit(s) having variable gains, and the power level detector outputs a power level indicator. The AGC receives the power level indicator and outputs the gain settings to the variable-gain circuits within the RX front-end. Further, the AGC is configured to adjust the gain settings within a first gain range when not receiving data frames and to adjust them within a second gain range when receiving data frames. The second gain range is a restricted version of the first gain range. Further, the AGC can be configured to detect and store gain settings within a sliding time window when data frames are not being received and to use these stored gain settings to determine the second gain range.

公开(公告)号：US20190131949A1

公开(公告)日：2019-05-02

申请号：US16130435

申请日：2018-09-13

Applicant: NXP B.V.

Inventor： Sebastien Robert ,  Fabian Rivière ,  Franck Bisson ,  Christophe Olivier Mertens ,  Samuel Becqué

IPC: H03G3/30 ,  H04B1/18 ,  H04B1/10

CPC classification number: H03G3/3068 ,  H03G2201/204 ,  H03G2201/206 ,  H04B1/109 ,  H04B1/18

Abstract: A receiver includes at least a first amplifier configured to receive a received signal and provide a first amplified signal based thereon, a mixer configured to receive the first amplified signal and provide an intermediate frequency signal based thereon and a second amplifier configured to receive the intermediate frequency signal and provide a second amplified signal based thereon. An automatic gain controller for the receiver is configured to, based on a first overload signal indicative of a first frequency range of the first amplified signal having one or more frequency components exceeding a first maximum signal power threshold and a second overload signal indicative of a second frequency range, narrower than the first, of the second amplified signal having one or more frequency components exceeding a second maximum signal power threshold, provide for control of a respective gain of one or both of the first amplifier and the second amplifier.