Re: DC-5.5 GHz signal generator evaluation boad
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Hello,
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some time ago I started to compile an Excel-Spreadsheet with the Phase Noise parameters of various signal generators.
You can find it here:
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I will be happy to add the data of other signal generators. Please feel free to send the data to me.
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Kind regards
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Matthias
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On 02/09/2022 16:38, Carter, Michael wrote:
Jim, your mention of the HP 8640B made
me curious about the SSB phase noise
specs of the AD9166 system.? At 100 MHz
it appears to be equivalent to that of
the 8640B, but I couldn't find a spec
for the 8640B at 1000 MHz to compare
the two signal generators.? I agree that
the price of the AD9166 and frequency
coverage makes it an attractive alternative,
especially if low SSB phase noise is required
to serve as a reference source.
The 8640B datasheet gives "typical measured" SSB phase noise at 512MHz as -130dB/Hz at 10kHz offset. Option 002 contains an internal doubler, so the phase noise at 1024MHz would be ~6dB more, i.e. -124dBc/Hz.
At 512MHz, it hits the broadband noise floor of -145dB/Hz at 50kHz offset, so the figure at 1024MHz would be somewhere between -145 and -140dBc/Hz, probably closer to -145dBc/Hz.
I don't have one, but I do have an HP8642B, which is even quieter (and incredibly heavy).
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