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TAS5717 EVM Kit not giving any sound output

Charles Thattil
Intellectual 305 points
Other Parts Discussed in Thread: TAS5717

Hi,

I had setup the TAS5717 evm and GUI. I am able to read and write to the TAS5717 registers through GUI. I fed the EVM with audio from mobile using stereo to mono splitter. I am using 3W 4 ohm speaker. I am not able to hear anything from the speaker. I started with very low value of DRC and lower master volume. The channel 1 and channel 2 volume is set to 0. Please guide me how to make the evm kit start working.

Regards,

Charles

 

  • 0
    TI__Guru 57800 points

    Hi Charles, 

    In order to use the analog input of the controller board, some jumper adjustments in MC57xx are required:

    • Select ADC in JP4 and JP5 (short on pins 1 and 2).
    • Audio CLK jumpers (JP6-JP10) should be connected with pins 1 and 2 tied. 

    JP2 and JP3 will limit the input voltage:

    • IN: LIN/RIN = 1Vrms MAX.
    • OUT: LIN/RIN = 2Vrms MAX.

    I suppose that you used the I2C memory tool to verify the connection with the  EVM, below is the most basic initialization code to test the amplifier.


    !TAS5717 Start sequence

    !Oscillator factory trim
    X1B 00

    !Exit Shutdown mode
    X05 00

    !Set master volume 0dB
    X07 00 C0

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer

  • 0 in reply to Diego Melendez
    Intellectual 305 points
    Hi Diego,

    Thank you for the reply. All the jumper setting was done as you suggested in the post. What should be the DRC settings? I am using a 3W speaker with 24V input?
  • 0 in reply to Charles Thattil
    Intellectual 305 points
    Hi Diego,

    It started working. Thank you for the help.

    Regards
    Charles