TAS5825M: 2.1ch audio system (stereo L/R + sub woofer)

Hi Park.

TAS5825M already has the process flow of stereo 2.1(2*tweeter+woofer).

You can take the process flow 14 as a reference.

TAS5825M Process Flows (Rev. A) (ti.com)

BR.

Wei Qiu.

Thanks for your reply.

Can PurePathTm Console software be tested only on PUREPATH-CMBEVM?

Hi Park.

PPC3 software is used to evaluate specific EVM board.

Mother board just serve as a supporting role,  it can transfer I2C,Spdif to I2S signal and so on.

BR.

Wei Qiu.

Thanks for your reply.

I have two questions for you.

1. Does the TAS5720M only support TDM mode? Does not I2S signal support?

2. Does not the TAS5825M use the I2S master clock?

The I2S signals that can be output from our main ic are BCK, AUSD (serial data out), AUWS (serial word select), and MCK (master clock).

I will send you the circuit diagram. Please review.

BR.

S.M. Park

AUDIO 2.1ch_5825M&5720M.pdf

Hi Park

Park Sang Min said:

Does the TAS5720M only support TDM mode? Does not I2S signal support?

TAS5720 also support I2S signal.

Park Sang Min said:

Does not the TAS5825M use the I2S master clock?

Yes, MCLK is not needed by TAS5825.

Park Sang Min said:

I will send you the circuit diagram. Please review.

The BST capacitor in TAS5825 shouldn't use 220nF, please change it into 470nF. Other place seems fine.

Thanks for your reply.

We will change the BST capacitor of the TAS5825 to 470nF. Can the BST capacitor of the TAS5720 be kept at 220nF?

BR.

S.M Park

Hi Park

   Yes, they are all the datasheet recommend value.

Thanks for your reply.

I'm trying to do a PCB design.
The TAS5825M has a layout on the datasheet (page 105), but the TAS5720M does not have dimension data for PCB design. Can I get dimension data?

Hi Park

   Strange that this information is indeed missing. Could you please follow below link to download the package info/model for this device? This link includes all kinds of CAD file and also PCB lib.

vendor.ultralibrarian.com/.../