LMX2594EVM: Check the Phase Noise

Louis Han15

Genius 4680 points

Part Number: LMX2594EVM

Hello

I tested the phase noise with LMX2594EVM.

The setting values are as follows.

The phase noise measured data is different from the datasheet.

Phase Noise Measurement data

Phase Noise Datasheet Data

Why is phase noise data different?

Best regards

0 Vibhu Vanjari over 3 years ago

Hello Louis,

The data in the datasheet was taken using a cleaner source than the reference pro that comes in the evaluation kit. What source are you using?

Thanks,

Vibhu

0 Louis Han15 over 3 years ago in reply to Vibhu Vanjari

Genius 4680 points

Hi Vibhu

The specifications of the source are as Below.

S/G(MXG Vector Signal Generator_N5182B) : 100MHz/0dBm

Are there any test conditions?

Best regards

0 Noel Fung over 3 years ago in reply to Louis Han15

Hi Louis,

We were using an extremely low phase noise clock. You can check this phase noise in the EVM user's guide Appendix D.

What is the phase noise of your clock source? Are they compatible?

0 Hao Z over 3 years ago in reply to Noel Fung

Closing this thread due to no response > 7 days.

Regards,
Hao

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