Invention Grant
- Patent Title: Locked loop circuit with clock hold function
- Patent Title (中): 带时钟保持功能的锁定回路电路
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Application No.: US13042276Application Date: 2011-03-07
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Publication No.: US08120399B2Publication Date: 2012-02-21
- Inventor: Jade M Kizer
- Applicant: Jade M Kizer
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus Inc.
- Current Assignee: Rambus Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Vierra Magen Marcus & DeNiro LLP
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
A locked loop circuit having a clock hold function. The locked loop circuit includes a select circuit, phase mixing circuit, hold signal generator and latch circuit. The select circuit selects one of a plurality of phase values in response to a select signal, and the phase mixing circuit generates a first clock signal having a phase angle according to the selected phase value. The hold signal generator asserts a hold signal in response to a transition of the select signal, and the latch circuit latches the state of the first clock signal in response to assertion of the hold signal.
Public/Granted literature
- US20110156776A1 Locked Loop Circuit With Clock Hold Function Public/Granted day:2011-06-30
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