TAS2505-Q1: ferrites on supply

O'Mellin

Part Number: TAS2505-Q1
Other Parts Discussed in Thread: TAS2505

hello,

my customer is considering replacing hte ferrites with 0ohms if not required to pass EMC : do they have other effect on performance of the part?

olivier

over 2 years ago

0 Ivan Salazar over 2 years ago

TI__Guru** 109055 points

Hi Olivier,

That is OK, ferrites are not required for audio performance, just used for EMC/EMI. Please make sure to remove the capacitors at the outputs as well if end up not using the ferrites.

Best regards,
-Ivan Salazar
Applications Engineer

0 O'Mellin over 2 years ago in reply to Ivan Salazar

TI__Expert 6095 points

ivan

are you referring about C1209 & C1210 or the caps right after the ferrites (like C1202 and 1204) ? the later i guess right ?

0 Ivan Salazar over 2 years ago in reply to O'Mellin

TI__Guru** 109055 points

Hi Olivier,

I can barely see the component designators, but I refer to the caps after the ferrites:

Best regards,
-Ivan Salazar
Applications Engineer

0 O'Mellin over 2 years ago in reply to Ivan Salazar

TI__Expert 6095 points

Ivan,

just to double confirm as it seems a bit weird : if you figure you dont need the supply ferrite (highlighted in yellow), you should remove the output cap (inthe red square)?

0 Ivan Salazar over 2 years ago in reply to O'Mellin

TI__Guru** 109055 points

Olivier,

Sorry for the confusion, I've been talking about the SPKP and SPKM outputs, I thought those were ferrites but now I notice these are inductors and not the ones you're referring to.

Regarding the ferrites on the supply, don't modify the supply caps, just remove the ferrites. These are not required from TAS2505 performance perspective.

Best regards,
-Ivan Salazar
Applications Engineer

Audio

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TAS2505-Q1: ferrites on supply