发明名称 |
Spread spectrum clock generator and method for generating a spread spectrum clock signal |
摘要 |
A spread spectrum clock generator (SSCG) and method of generating a spread spectrum clock (SSC) signal, in which the SSCG may include a controller outputting a given modulation voltage signal based on a difference between an average frequency of a first feedback signal and a comparison frequency signal input thereto, or based on comparison in total phase variations between a second feedback signal and the comparison frequency signal, and a sub-system for generating a first control voltage as a function of an input reference frequency signal and a second feedback signal input thereto. An adder may add the first control voltage signal and the modulation voltage signal to generate a second control voltage signal, and a voltage control oscillator (VCO) may generate the SSC signal based on the second control voltage signal.
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申请公布号 |
US7558311(B2) |
申请公布日期 |
2009.07.07 |
申请号 |
US20050205014 |
申请日期 |
2005.08.17 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SHIN JONG-SHIN;CHANG DUCK-HYUN;KIM JI-YOUNG;KWAK MYOUNG-BO;SEO IL-WON;PARK JAE-HYUN;KIM HYUN-GOO;KIM CHI-WON |
分类号 |
H04B1/00 |
主分类号 |
H04B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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