公开(公告)号：US20230384820A1

公开(公告)日：2023-11-30

申请号：US17824695

申请日：2022-05-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Atul Ramakant LELE ,  Dirk PREIKSZAT ,  Gregory NORTH ,  Robin Osa HOEL ,  Tarjei AABERGE

IPC: G06F1/12 ,  G06F1/08 ,  G06F1/10

CPC classification number: G06F1/12 ,  G06F1/08 ,  G06F1/10

Abstract: Aspects of the disclosure provide for an apparatus. In an example, the apparatus includes a clock switching circuit coupled to oscillators and one or more circuit units. The clock switching circuit is configured to receive, from the oscillators, a set of frequency signals, provide an uplink primary clock signal and an enable signal to the one or more circuit units, the enable signal determined synchronously with the uplink primary clock signal, receive, from the one or more circuit units or a clock management circuit, a clock frequency request, provide the uplink primary clock signal based on a first signal of the set of frequency signals, and according to the clock frequency request, determining whether to continue to provide the uplink primary clock signal based on the first signal or on a second signal of the set of frequency signals.

公开(公告)号：US20230421102A1

公开(公告)日：2023-12-28

申请号：US17849484

申请日：2022-06-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gebhard HAUG ,  Dirk PREIKSZAT

IPC: H03J1/00 ,  H03L7/099 ,  H04L25/02

CPC classification number: H03J1/0041 ,  H03L7/0992 ,  H04L25/0268

Abstract: In an example, a system includes circuitry on a first side of an isolation barrier and circuitry on a second side of the isolation barrier, where the isolation barrier is operable to electrically isolate the first side from the second side. The system also includes a trimmed oscillator, a first transmitter, and a first receiver on the first side, the trimmed oscillator coupled to the first transmitter. The system includes a tunable oscillator, a second transmitter, and a second receiver on the second side, the tunable oscillator coupled to the second receiver and the second transmitter. In the system, the first side is configured to transmit a training sequence to the second side, and the second side is configured to tune the tunable oscillator based on the training sequence.