发明名称 Expanded pull range for a voltage controlled clock synthesizer
摘要 A technique provides a clock source that meets accuracy requirements, allows the use of a low cost resonator, provides a wide range of output frequencies, and provides suitable phase noise performance. The technique generates a clock signal having a target output frequency using a controllable oscillator having at least one continuous frequency range of operation. The technique dynamically adjusts a reference control value based on a voltage for adjusting a frequency of the clock signal around a frequency determined by the reference control value. The reference control value is adjusted to be approximately within the center of an actual pull range corresponding to the controllable oscillator and a voltage control input of the controllable oscillator. The effective pull range of the controllable oscillator is continuous across the at least one continuous frequency range of operation.
申请公布号 US7342460(B2) 申请公布日期 2008.03.11
申请号 US20060278326 申请日期 2006.03.31
申请人 SILICON LABORATORIES INC. 发明人 BATCHELOR JEFFREY S.;THOMSEN AXEL
分类号 H03L7/18 主分类号 H03L7/18
代理机构 代理人
主权项
地址