EEPW论坛

问 小弟想请教一些MC145152的东西.他的数据手册上这样说的:
∮R,∮V(∮R,∮V是鉴相器的输出.fR,fV是鉴相器的输入信号频率,)
Phase Detector  Outputs (Pins 7, 8)
These phase detector outputs CAN be combined externally
for a loop–error signal.
If the frequency fV is greater than fR or if the phase of fV is
leading, then error information is provided by ∮V pulsing low.
∮R remains essentially high.
If the frequency fV is less than fR or if the phase of fV is
lagging, then error information is provided by ∮R pulsing low.
fV remains essentially high.
If the frequency of fV = fR and both are in phase, then both
∮V and ∮R remain high except for a small minimum time
period when both pulse low in phase.

但是我得到的却是相反的结果,不知道为什么,有谁能帮助我?谢谢了!!1 答 1: 还用那东东干吗？还用那东东干吗？还不如用国半的LMX2330或LMX2326价格低于8元一片，加个5元的MPU，效果比您那东东好的多（如相噪、频漂），你那东东价格比这方案贵上10多块。