ADC3562: Can I use HCSL signal as clock input?

Kei Kuwahara

Part Number: ADC3562
Other Parts Discussed in Thread: LMK00334,

Hello team,

Can I use HCSL signal as clock input (CLKP, CLKM)?

Best Regards,
Kei Kuwahara

+1 Geoff Roth 10 months ago

Yes, as long as it's AC-coupled and the differential swing is at least 1Vpp then it will work.

0 Kei Kuwahara 10 months ago in reply to Geoff Roth

Hello Geoff-san,

I have additional question to this.

My customer is considering to use LMK00334 to input HCSL clock signal.

From the datasheet of LMK00334, HCSL output clock looks like only 0.8Vpp.

Would it be possible clock ADC3562 with only 0.8Vpp?

Best Regards,
Kei Kuwahara

+1 Geoff Roth 10 months ago in reply to Kei Kuwahara

Kuwahara-san,

800mV is single-ended so is 800mVp (peak). Differential of that is 1.6Vpp (peak-to-peak) so it will work.

Regards,

Geoff

0 Kei Kuwahara 10 months ago in reply to Geoff Roth

Hi Geoff-san,

Thank you!

I forgot it is differential signal.

Best Regards,
Kei Kuwahara

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