All,
I have a question regarding trace routing for high-speed clock signals.
I have one driver, and two receivers. The distance between the driver and
1st receiver is roughly 2.5cm, the distance between 1st receiver and 2nd
receiver is 3cm, and the distance between driver and 2nd receiver is 3.5cm.
I actually have 2 questions:
1) What is a good rule of thumb for routing and termination of this
high-speed clock trace?
2) Is daisy chain routing preferred (meaning driver to 1st receiver,
then 2nd receiver), or should 2 traces of equal length be routed, 1 to each
receiver (each of these two traces will have twice the impedance of the
single trace emanating from the driver so that impedance matching will be
maintained)?
Any information, in general, or in specific on the subject is greatly
appreciated.
Thank you.
Best Regards,
Scott Mee
Johnson Controls Inc.
Automotive Systems Group
EMC Product Compliance
616.394.2565
[email protected]
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