DS90UH948-Q1: What's the impact of changing the value of AC coupling cap 0.033uF (recommended) to 0.1uF?

Part Number: DS90UH948-Q1

Hi team,

Due to the lack of ceramic capacitance supply recently, my customer want to chenge the value of AC coupling capacitance from recommended value to 0.1uF.

Would you let me advise what's the impact should consider?

Regards, NY

over 6 years ago

0 Palaniappan Manickam over 6 years ago

TI__Genius 10475 points

Hello,
Is this with STP or coax? What is the serializer part the 948 is talking to?

0 NY over 6 years ago in reply to Palaniappan Manickam

TI__Expert 3040 points

Hi Pal,
STP is used. and paring with 947.

0 Palaniappan Manickam over 6 years ago in reply to NY

TI__Genius 10475 points

Yada-san,
0.033uF is the recommended value when pairing with the 947, and this is what we have tested with.
50WV rated 0402 33nF capacitors are available widely with vendors such as digikey.

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DS90UH948-Q1: What's the impact of changing the value of AC coupling cap 0.033uF (recommended) to 0.1uF?