CDCLVP111-SP: Output impedance

Nathan Jones74

Part Number: CDCLVP111-SP
Other Parts Discussed in Thread: CDCLVP111

Hey, what's the output impedance on the CDCLVP111 device?

Also, is there a way to simulate this device? I'm hoping to use a few outputs for a PCIe reference clock and was looking to translate from LVPECL to HCSL to do so, but I want to make sure my Vpp levels are within the 700mV range.

Thanks,

Nate

over 3 years ago

0 Juan Rodriguez over 3 years ago

TI__Prodigy 730 points

Hi Nate,

I will check this value for you and give you a more thorough answer. I'll get back to you by 1/27 on this.

Regards,

Juan

+1 Juan Rodriguez over 3 years ago

TI__Prodigy 730 points

Hi Nate,

The output impedance for an LVPECL like the CDCLVP111 is typically 50 Ohms.

As for the differential output voltage swing, see figure 4 in Section 6.8 of the datasheet.

Regards,

Juan

0 Nathan Jones74 over 3 years ago in reply to Juan Rodriguez

Intellectual 260 points

Thanks Juan,

I'm going to mark this as resolved, but I think that graph is different from the datasheet on the Product Page (Rev F) . Yours looks a little more complete than the one on the product page.

Thanks again

-Nate

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CDCLVP111-SP: Output impedance