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    • 7. 发明申请
    • DELAY LOCKED LOOP
    • 延迟锁定环
    • US20120154002A1
    • 2012-06-21
    • US13400967
    • 2012-02-21
    • Seung-Joon AHNJong-Chern Lee
    • Seung-Joon AHNJong-Chern Lee
    • H03L7/08
    • H03L7/0816H03L7/0814
    • A delay locked loop includes a replica delay oscillator unit, a division unit, a pulse generation unit, a code value output unit, and a delay line. The replica delay oscillator unit generates a replica oscillation signal having a period corresponding to a replica delay. The division unit receives the replica oscillation signal and a clock signal and divides the replica oscillation signal and the clock signal at a first or second ratio in response to a delay locking detection signal. The pulse generation unit generates a delay pulse having a pulse width corresponding to a delay amount for causing a delay locking. The code value output unit adjusts a code value corresponding to the pulse width of the delay pulse in response to the delay locking detection signal. The delay line delays the clock signal in response to the code value.
    • 延迟锁定环包括复制延迟振荡器单元,除法单元,脉冲发生单元,代码值输出单元和延迟线。 复制延迟振荡器单元产生具有对应于复制延迟的周期的复制振荡信号。 分割单元接收复制振荡信号和时钟信号,并响应于延迟锁定检测信号,以第一或第二比例对复制振荡信号和时钟信号进行分频。 脉冲产生单元生成具有对应于用于引起延迟锁定的延迟量的脉冲宽度的延迟脉冲。 代码值输出单元响应于延迟锁定检测信号调整与延迟脉冲的脉冲宽度对应的代码值。 延迟线响应于代码值延迟时钟信号。
    • 8. 发明授权
    • Delay locked loop
    • 延迟锁定环路
    • US08143925B2
    • 2012-03-27
    • US12753442
    • 2010-04-02
    • Seung-Joon AhnJong-Chern Lee
    • Seung-Joon AhnJong-Chern Lee
    • H03L7/06
    • H03L7/0816H03L7/0814
    • A delay locked loop includes a replica delay oscillator unit, a division unit, a pulse generation unit, a code value output unit, and a delay line. The replica delay oscillator unit generates a replica oscillation signal having a period corresponding to a replica delay. The division unit receives the replica oscillation signal and a clock signal and divides the replica oscillation signal and the clock signal at a first or second ratio in response to a delay locking detection signal. The pulse generation unit generates a delay pulse having a pulse width corresponding to a delay amount for causing a delay locking. The code value output unit adjusts a code value corresponding to the pulse width of the delay pulse in response to the delay locking detection signal. The delay line delays the clock signal in response to the code value.
    • 延迟锁定环包括复制延迟振荡器单元,除法单元,脉冲发生单元,代码值输出单元和延迟线。 复制延迟振荡器单元产生具有对应于复制延迟的周期的复制振荡信号。 分割单元接收复制振荡信号和时钟信号,并响应于延迟锁定检测信号,以第一或第二比例对复制振荡信号和时钟信号进行分频。 脉冲产生单元生成具有对应于用于引起延迟锁定的延迟量的脉冲宽度的延迟脉冲。 代码值输出单元响应于延迟锁定检测信号调整与延迟脉冲的脉冲宽度对应的代码值。 延迟线响应于代码值延迟时钟信号。