锁相环环路带宽的测量.pdf
【文件名】:061212@52RD_锁相环环路带宽的测量.pdf
【格 式】:pdf
【大 小】:81K
【简 介】:Many modern communication systems utilise PLL
frequency synthesizers. The PLL is a feedback loop,
and the frequency domain characteristics of the loop
transfer function (gain and phase response) have
significant effect on the PLL operation, for example:
§ Locking times (e.g. overshoot and ringing for
poor phase margin)
§ Phase noise ‘ears’ if phase margin is poor
§ Frequency response of modulation /
demodulation
【目 录】: