TAS2557: Schematic review and components select

Rence

Prodigy 210 points

Part Number: TAS2557

Dear TI :

Can you help check the schematic and components for TAS2557 design ?

Thanks

over 5 years ago

0 Luis Fernando Rodriguez S. over 5 years ago

TI__Guru* 84915 points

Hi, Rence,

Yes, we can take a look at the schematics and design files. Could you please share the documents that you would like to review with us?

Thank you.

Best regards,
Luis Fernando Rodríguez S.

0 Rence over 5 years ago in reply to Luis Fernando Rodriguez S.

Prodigy 210 points

Dear Luis :

Thanks for your support

Please refer the schematic and data sheet of bead and inductance.

Because the design is related from our old project.

There are two PCB board including main board and speaker board and use FPC to connect.

The Vsense cannot directly connect to speaker pad.3808.TAS2557 schematic.pdf 47nH_LQW18AN47NJ00.PDF Bead_MPZ1608S221A.PDF

Thanks

0 user6321294 over 5 years ago in reply to Luis Fernando Rodriguez S.

Prodigy 20 points

Hi, Luis

We are still waiting for your reply, could you please help review it?

Thanks

daniel

0 Ivan Salazar over 5 years ago in reply to user6321294

TI__Guru** 110745 points

Rence, Daniel,

After review the schematic looks good.
It would be best if you could connect sense pins directly to the speaker. If not, the IR drops from the output filter will not be taken into account ant this could affect the IV-sense accuracy.

Regarding the boost inductor, please make sure to at least keep it as described in table 128 from data sheet.

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

0 Zoe Ko over 5 years ago in reply to Ivan Salazar

TI__Expert 3840 points

Hi Ivan,

I will send you the layout file and could you provide the review comments here?

Thanks!

0 Ivan Salazar over 5 years ago in reply to Zoe Ko

TI__Guru** 110745 points

Hi Zoe,

Are these different than the ones provided in this entry?: https://e2e.ti.com/support/audio/f/6/p/895514/3311088#3311088

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

0 Ivan Salazar over 5 years ago in reply to Ivan Salazar

TI__Guru** 110745 points

Hi,

I'm closing this thread due to inactivity. If you have any further questions please reply or create a new thread.

Best regards,
-Ivan Salazar
Applications Engineer - Low Power Audio & Actuators

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TAS2557: Schematic review and components select