Can the MCLK signal be absent in TAS5717?

Itachi Uchiha

Other Parts Discussed in Thread: TAS5717

Hi,

In my project, I intend to use a C5000 MCU to interface with TAS5717 via the I2S protocol. The MCU is the master, and TAS5717 is the slave.

For the I2S protocol, TAS5717 has 4 pins:

- LRCLK

- SCLK

- SDIN

- MCLK

and the C5000 MCU (when configured as master) has 3 pins:

- FS

- CLK

- DX

So it seems that the C5000 MCU has no pin to connect to pin MCLK of TAS5717. In this case, can TAS5717 still work properly?

Thank you,

over 14 years ago

0 Tuan over 14 years ago

TI__Mastermind 33420 points

Hello Uchiha:

Yes, you can. Please route SCLK to both MCLK and SCLK pins. On page 38 in the data sheet, you'll need to set MCLK = 64XFs. With this setting you can only run Fs at 44.1 or 48 kHz.

Best regards,

Tuan

0 Tuan over 14 years ago in reply to Tuan

TI__Mastermind 33420 points

Hello Uchiha:

I need to clarify that the C5000 needs to generate FsX64 = SCLK.

Best regards,

Tuan

0 Duc Anh Truong over 14 years ago in reply to Tuan

Prodigy 20 points

I have the same question. I hope this solution works.

Thank you, Tuan.

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Can the MCLK signal be absent in TAS5717?