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    • 4. 发明申请
    • APPARATUS AND METHOD TO COMPENSATE FOR INJECTION LOCKING
    • 补充注射锁定的装置和方法
    • WO2011126614A3
    • 2011-12-01
    • PCT/US2011025872
    • 2011-02-23
    • FREESCALE SEMICONDUCTOR INCSTEPHENS SAMUEL GBURCH KENNETH R
    • STEPHENS SAMUEL GBURCH KENNETH R
    • H03L7/081H03L7/087
    • H03L7/07
    • A circuit (10, 90, 100) and method (70) has a processing unit (28), a master clock generator (12) for providing a master clock and a plurality of phase-locked loops (14, 16, 18), each providing a respective clock signal. A plurality of dynamically variable delay circuits (30, 32, 34) each has a plurality of predetermined delay amounts. Clocked circuits (20, 22, 24) are coupled to respective clock signals provided by respective phase-locked loops. A performance detector (102) 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 (82). The phase-locked loops are turned off and on (86) 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 (82, 84).
    • 电路(10,90,100)和方法(70)具有处理单元(28),用于提供主时钟和多个锁相环(14,16,18)的主时钟发生器(12) 每个提供相应的时钟信号。 多个动态可变延迟电路(30,32,34)各自具有多个预定延迟量。 时钟电路(20,22,24)被耦合到由相应的锁相环提供的各个时钟信号。 性能检测器(102)被耦合以接收用于确定多个锁相环(82)中的至少一个的安静区域的中心的时钟信号。 锁相环被断开并导通(86),并且多个动态可变延迟电路中的相应一个延迟电路被设置为具有新的预定延迟值,该延迟调整将主时钟的边沿调整到允许数据的位置 处理系统在大致安静区域(82,84)的中心附近操作。