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PCM2903: disable automatic device detection of PCM2903

kishalay chakraborty
Prodigy 10 points
Part Number: PCM2903

hello everyone, I have used PCM2903 as USB ADC for my Data Acquisition system. Is is possible to encrypt or block the  USB device to being accessed by any audio application. The device should be accessed by only the application made for this data acquisition system.

I have one options:

Change the product Id of the PCM2903 and enable the new in in the application

In datasheet it is written that device descriptor can be changed ....But I have not fount any where how to change the device descriptor .....

Any one please help.....

  • 0
    TI__Guru* 95225 points
    Hi Kishalay,

    Welcome to e2e.
    The descriptor modification is performed during production. Although to do this the business opportunity need to fulfill some specific requirements. For more details you should contact your local TI Sales Office.

    Best regards,
    -Ivan Salazar
    Texas Instruments