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DS90UB925Q common mode choke

Marco Wyss
Prodigy 220 points


Hi all

The schematic in "DS90UB925QSEVB User’s Guide" shows a common mode choke at DOUT pins. The PN indicates a 90Ohm at 100MHz.

Since the Serializer goes up to 2.975Gbps at maximum speed, I'm concerned about the insertion loss of the common mode choke at this data rate.

Does the Serializer reaches full speed with the common mode choke as designed in the evaluation board?

 

regards, Marco