• RE: ADF4001 clock synchronization

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  • RE: ADF4001 lock fail

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  • ADF4001输出电压状态

    adf4001的CP端输出如果使用示波器测量,在正常状态下其是不是只有0v或者5V两个电压?datasheet里面提到的三态是个什么样的状态?@@@@@@@

  • RE: ADF4001 lock problem - Actual vs Sim

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  • RE: ADF4001 - Interfacing CMOS VCXO to RFin

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  • RE: what is 'cp' when ADF4001  unlocked

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  • RE: ADF4001 Programming Issue, What are the expected waveforms at muxout?

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  • 关于锁相环ADF4001的调试问题

          我在用ADF4001和一个VCO芯片MAX2606做80M-120M的频率合成器。VCO芯片测试是正常的,但锁相环一直在失锁状态,电荷泵的输出一直是个很小的直流。在MAXOUT观察R、N分频的输出,频率都是正常可控的,但并不是数据手册中给出的方波脉冲,而是一个尖峰(像是周期性的冲激信号)。请问这是什么原因造成的?

          环路滤波器是用ADIsimPLL设计的,带宽20KHz左右,鉴相频率设计是50kHz,R分频输出的尖峰是20M晶振经过分频后的200kHz的频率。分频频率与鉴相频率差别较大会导致锁不住吗…

  • ADF4001 and Mini-circuits POS-50+ for frequency generation

    Hello,

    I need to build a frequency synthesizer running at a very specific frequency of 33.786 MHz. I have my ADF4001 PLL and Mini-circuits POS-50+ VCO but I'm not sure what input reference to use. Any tips would be appreciated as I am a beginner with…

  • Register setting of ADF4001

    Hi

    I have some questions about ADF4001 from my customers.


    1. This part has four registers.   These are R counter, N counter, Function latch and Initialization latch.
        And each register of these has 24-bit length. But DB22 and DB23 are reserved, DON'T CARE…