Invention Application
US20080143452A1 Systems and Methods with Reduced Reference Spurs Using a Crystal Oscillator For Broadband Communications
有权
使用晶体振荡器进行宽带通信的参考马刺减少的系统和方法
- Patent Title: Systems and Methods with Reduced Reference Spurs Using a Crystal Oscillator For Broadband Communications
- Patent Title (中): 使用晶体振荡器进行宽带通信的参考马刺减少的系统和方法
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Application No.: US11612666Application Date: 2006-12-19
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Publication No.: US20080143452A1Publication Date: 2008-06-19
- Inventor: Ray Rosik , Weinan Gao , Mats Lindstrom
- Applicant: Ray Rosik , Weinan Gao , Mats Lindstrom
- Applicant Address: US CA Newport Beach
- Assignee: CONEXANT SYSTEMS, INC.
- Current Assignee: CONEXANT SYSTEMS, INC.
- Current Assignee Address: US CA Newport Beach
- Main IPC: H03B5/32
- IPC: H03B5/32
Abstract:
Systems and methods are provided. In this regard, a representative system incorporates a crystal oscillator circuit and a digital automatic level control circuit. The digital automatic level control circuit is operative to: convert an oscillation amplitude of the crystal oscillator circuit to a proportional DC voltage; convert the DC voltage to a corresponding digital code representation; and adjust bias current and oscillator loop gain such that a desired oscillation amplitude is set.
Public/Granted literature
- US07548128B2 Systems and methods with reduced reference spurs using a crystal oscillator for broadband communications Public/Granted day:2009-06-16
Information query
