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TLV320ADC3120: Configuring VAD on Pure path console

CAREY
Prodigy 30 points
Part Number: TLV320ADC3120
Other Parts Discussed in Thread: ADC3120EVM-PDK

Tool/software:

Hello Team, 

i need any step by step process to perform a VAD on TLV320ADC3120.

Am using VAD on the evaluation board of  TLV320ADC3120 i.e ADC3120EVM-PDK.

i would like to configure VAD like that SDOUT must be active and coming when voice is triggered.

i nedd step by step configuration in Purepath console to perform VAD. 


Thanks,

CJI

  • 0
    TI__Intellectual 2555 points

    Hi CJI,

    GPIO should be configured as an interrupt by default, so no changes need to be made on the GPIO/Interrupts tab on PPC3. On the VAD Config tab, click on "Disabled" on the top right corner of VAD Configuration to switch to "Enabled".

    In VAD Mode, you can change to power up the ADCs when the VAD is triggered if that is your application. You can read more about these options in this app note: https://www.ti.com/lit/an/sbaa490a/sbaa490a.pdf The only other change you may need to make is choosing which channel to perform VAD on. You can switch this in the VAD Channel Selection drop-down. You can only monitor one channel at a time. There is an LED on the board that monitors the interrupt, but you can alternatively click "Start Polling" on the VAD interrupts box to see the interrupts light up in the PPC3 window.

    Best,

    Garret