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TPA2028D1YZFEVM: Audio output from the TPA2028D1

Mohammad Rafi
Prodigy 20 points

Part Number: TPA2028D1YZFEVM

I have procured a TPA2028D1YZFEVM and working on windows 10 OS. I have installed the TPA2028D1 Interface GUI software.I have connected the EVM with the laptop using the USB cable and able to read/write on I2C. I have connected the EVM audio input to the Laptops audio output jack. The Left and ground signals from the audio jack cable are connected to the JP_IN connector. On the JP_OUT I have a connected a 8ohm, 1.5W speaker. I could not get any audio output. Attaching snapshots for your reference. Need some help

  • 0
    TI__Mastermind 20085 points
    Hi Mohammad Rafi,

    Welcome to E2E, thanks for your interest in our products.
    Could you provide the register setting? in order to review it and make sure that is configured properly.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer
  • 0 in reply to José Luis
    Prodigy 20 points

    Hi José Luis Figueroa,

    I am attaching the register setting script file..

    Addr Data Comment (All Values in Hex)
    01 C3 Function Control
    02 05 Attack Time
    03 0B Release Time
    04 00 Hold Time
    05 10 Fixed Gain
    06 3F Noise Gate/Limiter
    07 C0 Max/Comp Ratio
    08 01 Device Identification
    09 00 Vendor ID

    test1.txt 
    Addr	Data	Comment  (All Values in Hex)
01	C3	Function Control
02	05	Attack Time
03	0B	Release Time
04	00	Hold Time
05	10	Fixed Gain
06	3F	Noise Gate/Limiter
07	C0	Max/Comp Ratio
08	01	Device Identification
09	00	Vendor ID

  • 0 in reply to Mohammad Rafi
    TI__Mastermind 20085 points
    Mohammad Rafi,

    I have used your register setting on the EVM and works normally. I think the problem could be caused by three factors:
    1) Check the EVM driver is working properly. You could check it setting communication between the GUI and EVM.
    2) Make sure that the input signal is arriving at the device.
    3) Make sure that the speaker works. You could connect another speaker to check it.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer