Figure 6-3. Mic Bias Configuration; Figure 6-4. Standby To Active Mode; Figure 6-5. Disabled Controls In Active Mode - Texas Instruments ADCx120EVM-PDK User Manual

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As shown in Figure 6-3, make sure AVDD is selected for the MIC bias voltage and powered up.
The default state for the TLV320ADCx120 is standby mode and, with the exception of the channel digital volume,
all device configurations must be done in standby mode. The TLV320ADCx120 does not provide a digital audio
output in standby mode. Figure 6-4
When active mode is enabled, any controls not configurable in active mode are grayed out. These controls can
be changed again when the device is brought out of active mode.
Audio can now be captured on your PC using the audio program of your choice.
SBAU359A – MAY 2019 – REVISED JUNE 2021
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Figure 6-3. MIC Bias Configuration

shows how to change the mode from standby to active.

Figure 6-4. Standby to Active Mode

Figure 6-5. Disabled Controls in Active Mode

Copyright © 2021 Texas Instruments Incorporated
Figure 6-5 shows which controls are disabled.
ADCx120EVM-PDK, PCMD3140EVM-PDK Evaluation Module
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