Clock buffer recommendation

Jacky Wang(QD)

Other Parts Discussed in Thread: LMK1C1108

Hi Team,

Our customer is looking for a clock buffer to meet below specifications, can you help to check if we have the suitable device or not? Thanks a lot!

Input frequency: >200MHz
Outputs: >=8 channels, single-ended 1.8V LVCMOS
Phase noise: -140dBc/Hz@200MHz or better
Output skew: <50ps
Total Propagation Delay: <800ps

over 3 years ago

0 Lane Boyd over 3 years ago

TI__Genius 16845 points

LMK1C1108 is the best option for 1:8 LVCMOS clock buffer. Note that max output skew is 55ps and propagation delay is 2.2ns max.

Kind regards,
Lane

0 Jacky Wang(QD) over 3 years ago in reply to Lane Boyd

TI__Genius 10320 points

Hi Lane,

For LMK1C1108, the propagation delay parameter under 1.8V VDD we only give the typical and maximum value as below, customer also wants to know the minimum value, can you help to provide it? Thanks a lot!

0 Lane Boyd over 3 years ago in reply to Jacky Wang(QD)

TI__Genius 16845 points

Hi Jacky,

Minimum propagation delay was 1ns

Kind regards,
Lane

Clock & timing

Clock & timing forum

Clock buffer recommendation