公开(公告)号：US20230421191A1

公开(公告)日：2023-12-28

申请号：US17897637

申请日：2022-08-29

Applicant: Silicon Laboratories Inc.

Inventor： Thomas Edward Voor ,  Jeffrey L. Sonntag ,  Richard Hendricks ,  Logan Lucas ,  Jeffrey Merrill ,  Hendricus De Ruijter ,  Luigi Panseri

IPC: H04B1/16 ,  H04B17/318

CPC classification number: H04B1/16 ,  H04B17/318

Abstract: In one aspect, a method comprises: comparing, in a comparator, a signal level of a receive radio frequency (RF) signal to a first threshold, the receive RF signal obtained from a controllable location in an RF front end circuit; and in response to the signal level of the receive RF signal exceeding the first threshold, causing the RF front end circuit to be reconfigured from a first mode in which an input to a low noise amplifier (LNA) is coupled an antenna to a second mode in which the input to the LNA is coupled to an RF filter.

公开(公告)号：US20230421194A1

公开(公告)日：2023-12-28

申请号：US17897620

申请日：2022-08-29

Applicant: Silicon Laboratories Inc.

Inventor： Thomas Edward Voor ,  Jeffrey L. Sonntag ,  Richard Hendricks ,  Logan Lucas ,  Hendricus De Ruijter ,  Luigi Panseri

IPC: H04B1/18 ,  H04B1/10 ,  H04B1/16

CPC classification number: H04B1/18 ,  H04B1/10 ,  H04B1/1607

Abstract: In one aspect, an apparatus includes a receive path to receive, process and output a receive radio frequency (RF) signal, the receive path comprising at least one low noise amplifier (LNA) and a plurality of signal nodes. The receive path may be configurable to operate in a plurality of modes. The apparatus also may include at least one filter to filter the receive RF signal and at least one detector circuit to detect one or more levels present at one or more of the plurality of signal nodes. The apparatus may configure an order of the at least one LNA and the at least one filter, based at least in part on the one or more levels detected in the at least one detector circuit.