We have a N9340B hand held spectrum analyzer, I want to know if i can use it to detect the clock frequency accuracy such as 100Mhz of PCIe speed. Specifically, what is the input signal range? Can i use a coax cable to connect to the clock pin, the clock pin has 3.3V LVDS clock output. The spec says the input limit is 50VDC, but I am not sure if it is ok to do so. Also, can I input a AC coupling signal into this analyzer, like +/-100mV, 100Mhz.
Thanks
JK
Hi Ji kai,
As you already found, your signals are under the maximum input ratings listed in the Technical Overview, page 18:
So it would be okay, technically speaking, for you to do as you said.
However, if your purpose is to measure the clock frequency accuracy of your PCIe bus, I would recommend using a frequency counter or an oscilloscope for this kind of measurement (we also sell protocol decoding software). Here is a brochure which describes other types of tests for PCIe systems. You may find that it is difficult to get the results you desire with a spectrum analyzer.
Hope this helps.
Hi Ji kai,
As you already found, your signals are under the maximum input ratings listed in the Technical Overview, page 18:
So it would be okay, technically speaking, for you to do as you said.
However, if your purpose is to measure the clock frequency accuracy of your PCIe bus, I would recommend using a frequency counter or an oscilloscope for this kind of measurement (we also sell protocol decoding software). Here is a brochure which describes other types of tests for PCIe systems. You may find that it is difficult to get the results you desire with a spectrum analyzer.
Hope this helps.