DS125DF111: AC cap placement

Kanava Sait Abdul Kathar

Prodigy 60 points

Part Number: DS125DF111

What is the placement requirement for In/Out pins AC caps

over 1 year ago

0 Evan Mayhew over 1 year ago

TI__Mastermind 19982 points

Hi Kanava,

We recommend placing the AC caps as close as possible to the IC. Please refer to section 10.2 in the datasheet for an example.

Thanks,

Evan

0 Kanava Sait Abdul Kathar over 1 year ago in reply to Evan Mayhew

Prodigy 60 points

For both Input and Output pins? I think AC caps for output pins should be placed closer to the Receiver IC.

In 8.2.1 "place AC-Coupling capacitors for the transmitter links near the receiver for that channel"

+1 Evan Mayhew over 1 year ago in reply to Kanava Sait Abdul Kathar

TI__Mastermind 19982 points

Sorry for the confusion, my previous response only applies to the input pins of the receiver IC. Following 8.2.1, place all AC caps as close as possible to each receiver end of the signal chain.

Thank you,
Evan

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

Interface

Interface forum

DS125DF111: AC cap placement