Invention Grant
- Patent Title: Method and delay circuit with accurately controlled duty cycle
- Patent Title (中): 方法和延迟电路具有精确控制的占空比
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Application No.: US12261941Application Date: 2008-10-30
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Publication No.: US07642830B2Publication Date: 2010-01-05
- Inventor: Robert L White
- Applicant: Robert L White
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Mirna G. Abyad; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H03K3/017
- IPC: H03K3/017

Abstract:
A delay locked loop includes a storage element coupled to a data bus and produces a data synchronization signal. A phase detector receives a data clock signal and the data synchronization signal and produces a delay control signal. A first delay circuit produces a signal which is delayed relative to the data clock signal according to the delay control signal. A second delay circuit receiving the delayed signal produces a control signal coupled to a control input of the storage element by delaying the delayed signal an amount which causes the control signal to have a predetermined duty cycle.
Public/Granted literature
- US20090051398A1 METHOD AND DELAY CIRCUIT WITH ACCURATELY CONTROLLED DUTY CYCLE Public/Granted day:2009-02-26
Information query
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