Phase locked loops capable of burn-in testing with increased locking range and burn-in testing method thereof
    3.
    发明申请
    Phase locked loops capable of burn-in testing with increased locking range and burn-in testing method thereof 失效
    锁相环能够通过增加锁定范围和老化测试方法进行老化测试

    公开(公告)号:US20080112524A1

    公开(公告)日:2008-05-15

    申请号:US11822216

    申请日:2007-07-03

    IPC分类号: H03D3/24

    CPC分类号: H03D13/004 H03L7/08

    摘要: In phase locked loop, a phase detector detects a phase difference between a first clock signal and a second clock signal and output a first output signal based on the detected difference. A charge pump generates a control voltage in response to the first output signal from the phase detector. A voltage-controlled oscillator generates the second clock signal. A controller controls the control voltage such that the phase difference between the first clock signal and the second clock signal is increased in response to a burn-in test mode signal.

    摘要翻译: 在锁相环中,相位检测器检测第一时钟信号和第二时钟信号之间的相位差,并基于检测到的差值输出第一输出信号。 电荷泵响应于来自相位检测器的第一输出信号产生控制电压。 压控振荡器产生第二时钟信号。 控制器控制控制电压,使得响应于老化测试模式信号,第一时钟信号和第二时钟信号之间的相位差增加。

    Phase locked loops capable of burn-in testing with increased locking range and burn-in testing method thereof
    6.
    发明授权
    Phase locked loops capable of burn-in testing with increased locking range and burn-in testing method thereof 失效
    锁相环能够通过增加锁定范围和老化测试方法进行老化测试

    公开(公告)号:US07826584B2

    公开(公告)日:2010-11-02

    申请号:US11822216

    申请日:2007-07-03

    IPC分类号: H03D3/24 H03L7/06

    CPC分类号: H03D13/004 H03L7/08

    摘要: In phase locked loop, a phase detector detects a phase difference between a first clock signal and a second clock signal and output a first output signal based on the detected difference. A charge pump generates a control voltage in response to the first output signal from the phase detector. A voltage-controlled oscillator generates the second clock signal. A controller controls the control voltage such that the phase difference between the first clock signal and the second clock signal is increased in response to a burn-in test mode signal.

    摘要翻译: 在锁相环中,相位检测器检测第一时钟信号和第二时钟信号之间的相位差,并基于检测到的差值输出第一输出信号。 电荷泵响应于来自相位检测器的第一输出信号产生控制电压。 压控振荡器产生第二时钟信号。 控制器控制控制电压,使得响应于老化测试模式信号,第一时钟信号和第二时钟信号之间的相位差增加。