公开(公告)号：US11323126B1

公开(公告)日：2022-05-03

申请号：US17242426

申请日：2021-04-28

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Steven H. Rogers ,  Jack L. Glenn

IPC: H03L7/099 ,  G06F1/08

Abstract: An electronic circuit includes a first pin corresponding to a reference signal and a second pin corresponding to an external resistor, the external resistor being connected on a first side to the second pin and connected on a second side to ground. The apparatus also includes a first oscillator having a first frequency loop configured to: receive, via the first pin, the reference signal; receive, via the second pin, a current associated with voltage applied to the external resistor; and lock a first frequency output at a frequency associated with the reference signal. The apparatus also includes a second oscillator having a second frequency loop configured to: receive the first frequency output; scale the frequency of the first frequency output; and lock a second frequency output at the scaled frequency of the first frequency output.