Invention Grant
- Patent Title: Digital phase locked loop
- Patent Title (中): 数字锁相环
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Application No.: US13710691Application Date: 2012-12-11
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Publication No.: US08742808B2Publication Date: 2014-06-03
- Inventor: Robert Bogdan Staszewski , Dirk Leipold
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Ronald O. Neerings; Wade James Brady; Frederick J. Telecky, Jr.
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
A phase locked loop circuit (30, 100, 110) includes a controllable oscillator (42) for generating an output signal of desired frequency responsive to a control signal, a first phase detection circuit (32, 102, 112) for generating an output indicative of phase differential responsive to the output signal and a first edge of a reference signal and a second phase detection circuit (34, 104, 114) for generating an output indicative of phase differential responsive to the output signal and a second edge of a reference signal. The control signal to the controllable oscillator (42) is driven by the outputs of the first and second phase detections circuits.
Public/Granted literature
- US20130093480A1 DIGITAL PHASE LOCKED LOOP Public/Granted day:2013-04-18
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