The Designer's Guide Community Forum https://designers-guide.org/forum/YaBB.pl Measurements >> Other Measurements >> Frequency Divider Input Sensitivity https://designers-guide.org/forum/YaBB.pl?num=1134049678 Message started by sheldon on Dec 8th, 2005, 5:47am

Title: Frequency Divider Input Sensitivity Post by sheldon on Dec 8th, 2005, 5:47am Greetings,   What is the standard method for measuring frequency divider input sensitivity? Is it defined in terms of the loss at output frequency, for example, the input level at which the output is 3dB from the full scale? Is it defined in terms of the ratio of the output to clock feedthrough level, for example, the input level at which the output frequency level is equivalent to the clock feedthrough? Is there a standard definition?                                                Best Regards,                                                   Sheldon

Title: Re: Frequency Divider Input Sensitivity Post by sheldon on Dec 22nd, 2005, 3:25am Greetings,    Worked out how to measure a divider's input sensitivity. SpectreRF's swept PSS can be used to measure a dividers sensitivity at a given frequency. The divider stops working below a threshold input level. If the tone at the divide frequency is monitored it is fairly easy to measure the sensitivity.                                                                  Best Regards,                                                                      Sheldon

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