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发明公开
CN101272365A 信号产生装置及其相关方法 无效 - 撤回

信号产生装置及其相关方法
摘要：
本发明提供一种信号产生装置及其相关方法，该信号产生装置依据输入信号产生合成信号，其包含有锁相环装置、控制单元、检测装置、滤波装置及调制装置。锁相环装置包含相位/频率检测器、控制信号产生器、压控振荡器及分频器。控制单元，控制控制信号产生器以于校正模式中调整控制信号以调整合成信号的频率，其中相位/频率检测器在校正模式中不输出检测信号。检测装置，用于校正模式中检测合成信号以产生校正信号。滤波装置，对输入信号进行滤波并依据校正信号校正输入信号以产生滤波信号。调制装置，调制滤波信号，以产生分频因子。上述信号产生装置降低了锁相环对转换函数的参数变化的敏感度，增加了锁相环的稳定性。
摘要（英）：

A signal generating apparatus is disclosed for generating a synthesized signal according to an input signal, the signal generating apparatus includes a phase-locked loop device for generating the synthesized signal; a control unit for controlling the control signal generator to adjust the control signal in a calibration mode to thereby adjust a frequency of the synthesized signal, wherein the phase/frequency detector does not output the detected signal to the control signal generator in the calibration mode; a detecting device for detecting the synthesized signal to generate a calibrating signal in the calibration mode; a filtering device for filtering the input signal and calibrating the input signal according to the calibrating signal to generate a filtered signal; and a modulating device for modulating the filtered signal to generate the dividing factor.

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