公开(公告)号：US20180188317A1

公开(公告)日：2018-07-05

申请号：US15691381

申请日：2017-08-30

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Giorgio MAIELLARO ,  Angelo SCUDERI ,  Angela BRUNO ,  Salvatore SCACCIANOCE

IPC: G01R31/28

CPC classification number: G01R31/2884 ,  G01R31/2832 ,  G01S7/4056 ,  G01S2007/4069

Abstract: A radio-frequency receiver includes built-in-self-test (BIST) circuitry which generates a self-test signal. A local oscillator signal is divided. A self-test oscillation signal is generated, based, at least in part, on the frequency-divided local oscillation signal. The self-test signal is generated based on the self-test oscillation signal. The BIST circuitry includes a divider, which divides the self-test oscillation signal. The frequency-divided local oscillation signal and the divided self-test oscillation signal are used to perform one or more of generating the self-test oscillation signal and controlling the generation of the self-test oscillation signal. The radio-frequency receiver may be an automotive radar receiver.

公开(公告)号：US20220003814A1

公开(公告)日：2022-01-06

申请号：US17479510

申请日：2021-09-20

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Giorgio MAIELLARO ,  Angelo SCUDERI ,  Angela BRUNO ,  Salvatore SCACCIANOCE

IPC: G01R31/28 ,  G01S7/40

Abstract: A radio-frequency receiver includes built-in-self-test (BIST) circuitry which generates a self-test signal. A local oscillator signal is divided. A self-test oscillation signal is generated, based, at least in part, on the frequency-divided local oscillation signal. The self-test signal is generated based on the self-test oscillation signal. The BIST circuitry includes a divider, which divides the self-test oscillation signal. The frequency-divided local oscillation signal and the divided self-test oscillation signal are used to perform one or more of generating the self-test oscillation signal and controlling the generation of the self-test oscillation signal. The radio-frequency receiver may be an automotive radar receiver.