Other Parts Discussed in Thread: CDCLVP1204
Hi,
The datasheet shows that for LVPECL termination there should be a 150-ohm resistor to GND, however, that is if you are probing the signal with a high-impedance probe. Given that I will route this signal with a 50-ohm transmission line to an LVPECL input, what should be the external resistor to match the output of the LMK61E0-050M to a 50-ohm transmission line? Would it be referred to Vcc?
I will be connecting the output of the LMK61E0-050M to the input of a CDCLVP1204, and as I'm using 3.3 V as Vcc, I'll be terminating the transmission line with a pull-up of 130 ohms and a pull-down of 82 ohms to get the 50-ohms termination at Vcc - 2 V.
Thanks.