发明名称 |
Apparatus and method to compensate for injection locking |
摘要 |
A circuit and method has a processing unit, a master clock generator for providing a master clock and a plurality of phase-locked loops, each providing a respective clock signal. A plurality of dynamically variable delay circuits each has a plurality of predetermined delay amounts. Clocked circuits are coupled to respective clock signals provided by respective phase-locked loops. A performance detector is coupled to receive the clock signals for determining a center of a quiet zone for at least one of the plurality of phase-locked loops. The phase-locked loops are turned off and on and a respective one of the plurality of dynamically variable delay circuits is set to have a new predetermined value of delay which adjusts an edge of the master clock to a location that permits the data processing system to operate near substantially the center of the quiet zone. |
申请公布号 |
US8291257(B2) |
申请公布日期 |
2012.10.16 |
申请号 |
US20100748892 |
申请日期 |
2010.03.29 |
申请人 |
STEPHENS SAMUEL G.;BURCH KENNETH R.;FREESCALE SEMICONDUCTOR, INC. |
发明人 |
STEPHENS SAMUEL G.;BURCH KENNETH R. |
分类号 |
G06F1/00;G06F1/04 |
主分类号 |
G06F1/00 |
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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