SBAU474 December 2024 TAA3040
For the onboard microphone input configuration (shown in Figure 5-9), the TAA3040 records the audio captured from the microphones located on the bottom edge of the board. MICBIAS is used to power the onboard microphone, so header J14 must be shorted. There must not be any connections to J1 during onboard microphone use to preserve the performance of the microphone.
Figure 5-9 TAA3040EVB Connection for the Onboard Microphone Test