LMK62I0-100M: LMK62I0-100M driving HCSL

David Wende

Intellectual 620 points

Part Number: LMK62I0-100M

Do you recommend a series resistor between the device and 50 ohm pull-down when driving HCSL inputs (PCIe)?

If so, what value?

Thanks

David

over 5 years ago

0 Alan O over 5 years ago

TI__Mastermind 32575 points

You can use a series resistor with 0-ohms as a placeholder, then tune the value to minimize overshoot or ringing if needed (depends on PCB channel/interconnect and I/O buffer characteristics). Typical series resistor values can range from 0 to 33 ohms.

Alan

0 David Wende over 5 years ago in reply to Alan O

Intellectual 620 points

Thanks Alan

Clock & timing

Clock & timing forum

LMK62I0-100M: LMK62I0-100M driving HCSL