TAS5805M: Artwork of PBTL for TAS5805M

yoshiki hasebe

Mastermind 6385 points

Part Number: TAS5805M

Dear Sirs,

My customer asked us about PCB artwork of PBTL for TAS5805M.

I checked datasheet and user guide of TAS5805M.

Therefore, I found only circuit diagram.

So please let me know about PCB artwork of PBTL for TAS5805M.

Best Regards,

Y.Hasebe

over 5 years ago

0 Xiaolin Qin over 5 years ago

TI__Expert 6295 points

hello,
for PBTL circuit, go to datasheet page83.
www.ti.com/.../tas5805m.pdf

Regards
Linda

0 yoshiki hasebe over 5 years ago in reply to Xiaolin Qin

Mastermind 6385 points

Hello Linda-san,

Thank you for your reply.

I knew that PBTL circuit diagram of datasheet page83.
I want layout design.
Because, EVM is a circuit configuration of BTL connection only.
Please let me know how to make this EVM a PBTL configuration and have a layout design of PBTL connection using TAS5805M.

Best Regards,
Y.Hasebe

0 yoshiki hasebe over 5 years ago in reply to yoshiki hasebe

Mastermind 6385 points

Hello Linda-san,

Please let me know about my additional questions.

I knew that PBTL circuit diagram of datasheet page83.
I want layout design.
Because, EVM is a circuit configuration of BTL connection only.
Please let me know how to make this EVM a PBTL configuration and have a layout design of PBTL connection using TAS5805M.

Best Regards,

Y.Hasebe

0 Matthew Miao over 5 years ago in reply to yoshiki hasebe

TI__Expert 6720 points

Hi Hasebe,

TAS5805M EVM board can be set to PBTL by selecting Mono 1.0 PBTL as below:

What's more, the speaker connect is post filter short:

Rdgs,

Matthew

0 yoshiki hasebe over 5 years ago in reply to Matthew Miao

Mastermind 6385 points

Hello Matthew-san,

Thank you for your reply.

For this connection, the output Inductor will be ferrite beads.

In the case of Post Filter PBTL, I know this is because the current is split between the two inductors.

However、in the case of maximum output of PBTL、 is there no problem with the rated current of EVM's ferrite beads?

The EVM circuit configuration is Post Filter, and the data sheet circuit is Pre Filter as shown in the figure below.

There is also a description of both filter configurations in the data sheet, so I think that it will be used depending on the application.

Is this correct?

Best Regards,

Y.Hasebe

0 Xiaolin Qin over 5 years ago in reply to yoshiki hasebe

TI__Expert 6295 points

you can refer to datasheet to do PBTL connection or Matthew talked post filter short.

if you want to refer layout, EVM user guide have layout could also referable, there is no big difference except pre filter or post filter connection.

regards
Linda

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TAS5805M: Artwork of PBTL for TAS5805M