what are people using for external clock?

Placement, modules, components and accessories; the ones that exist and the the nice-to-be's
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kpjamro
Posts: 6
Joined: Fri Dec 03, 2021 2:59 am

what are people using for external clock?

Post by kpjamro » Fri Dec 03, 2021 3:26 am

I have several sources of 122.88 MHz RF that I could use. They are all nearly sinusoidal 50-ohm single-ended output sources. Do I have to feed this through an LVDL line driver chip? I was thinking of using a small pulse transformer for isolation and simply adjusting the signal level from zero up until the ADC triggered reliably.

If a sinusoidal signal won't work, any suggestions for some simple way to make it into a suitable waveform? - perhaps just diode clipping from a high level?

Thanks

Ken

kpjamro
Posts: 6
Joined: Fri Dec 03, 2021 2:59 am

Re: what are people using for external clock?

Post by kpjamro » Thu Dec 09, 2021 6:47 pm


bdillmann
Posts: 1
Joined: Mon Nov 14, 2022 7:57 pm

Re: what are people using for external clock?

Post by bdillmann » Fri Feb 02, 2024 8:28 am

Hi Ken, I am a researcher in NMR engineering. I just got my SDRlab (this board needs an external clock signal 122.88MHz to boot) can you send me some pictures and an BoQ for the components that you bought ?

Best regards, DILLMANN
:D

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