TS3A225E: the channel isolation

Jason Shen

Intellectual 1945 points

Part Number: TS3A225E

Dears

we have facing a issue for the left channel and right channel isolation with TS3A225E, we think it might because the GND Ron resistance, if the Ron is 100mohm, and load is 32ohm, the isolation will around 50dB? if we want higher isolation performance, what we can do further?

thanks

Jun Shen

over 4 years ago

0 Kate Dickson over 4 years ago

TI__Expert 5660 points

Hi Jun Shen,

Our team is currently out of office for the holidays. Please expect a response from me on Thursday, Dec 26!

Thank you for your patience.

Regards,

Kate

0 Kate Dickson over 4 years ago

TI__Expert 5660 points

Hi Jun Shen,

Could you send a block diagram or schematic of your test setup? Are you measuring -50dB isolation with a 32 ohm load at the SLEEVE_SENSE or RING2_SENSE pin? At what frequency are you measuring? What is your VDD and Vpp?

Thanks,
Kate

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TS3A225E: the channel isolation