Invention Grant
- Patent Title: Voltage controlled delay loop and method with injection point control
- Patent Title (中): 电压控制延时回路和注入点控制方法
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Application No.: US10999900Application Date: 2004-11-30
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Publication No.: US08067966B2Publication Date: 2011-11-29
- Inventor: Ronald L. Freyman , Vladimir Sindalovsky , Lane A. Smith
- Applicant: Ronald L. Freyman , Vladimir Sindalovsky , Lane A. Smith
- Applicant Address: US PA Allentown
- Assignee: Agere Systems Inc.
- Current Assignee: Agere Systems Inc.
- Current Assignee Address: US PA Allentown
- Agency: Ryan, Mason & Lewis, LLP
- Main IPC: H03L7/00
- IPC: H03L7/00

Abstract:
A voltage controlled delay loop and method are disclosed for clock and data recovery applications. The voltage controlled delay loop generates clock signals having similar frequency and different phases. The voltage controlled delay loop comprises a plurality of delay elements; and an input that selectively injects a reference clock into any one of the plurality of delay elements. The plurality of delay elements are connected in series, such as in a loop. In one exemplary implementation, each delay element has an associated multiplexer that selects one of the reference clock and a signal from a previous delay element.
Public/Granted literature
- US20060114039A1 Voltage controlled delay loop and method with injection point control Public/Granted day:2006-06-01
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