公开(公告)号：US20200177170A1

公开(公告)日：2020-06-04

申请号：US16281622

申请日：2019-02-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gautam Sanjay KALE ,  Sundarrajan RANGACHARI ,  Nagalinga Swamy Basayya AREMALLAPUR

IPC: H03K5/131 ,  H03K23/54

Abstract: A clock generator circuit includes a clock divider circuit, a clock pulse control circuit, a phase shifter circuit, and a clock multiplexer circuit. The clock divider circuit is configured to generate a divided clock having a frequency that is a programmable fraction of a frequency of an input clock. The clock pulse control circuit is coupled to the clock divider circuit, and is configured to generate a pulse shaped clock that includes a clock burst comprising a programmable number of adjacent cycles of the divided clock. The phase shifter circuit is coupled to the clock control circuit, and is configured to generate a plurality of phase shifted clocks. Each of phase shifted clocks is a differently delayed version of the pulse shaped clock. The clock multiplexer circuit is coupled to the phase shifter circuit, and is configured to selectively route each of the phase shifted clocks to an output terminal.