Invention Grant
- Patent Title: Digital phase locked loop
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Application No.: US10131523Application Date: 2002-04-24
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Publication No.: US08385476B2Publication Date: 2013-02-26
- Inventor: Robert B. Staszewski , Dirk Leipold
- Applicant: Robert B. Staszewski , Dirk Leipold
- 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, III; Frederick J. Telecky, Jr.
- Main IPC: H03D1/00
- IPC: H03D1/00 ; H04L27/06

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
- US20020191727A1 Digital phase locked loop Public/Granted day:2002-12-19
Information query
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