SLAU902A September 2023 – January 2024
For the on-board microphone input configuration shown in Figure 3-8, the TAx5x12 records the audio captured from the microphones MK1 (ECM) or U5 (Analog MEMS) which port is located on the bottom of the board. Electret Microphone (MK1) is connected to IN1P/M and MICBIAS is used to power the on-board microphone, so the header J8 must be installed. For MEMS microphone (U5), this can be configured as either a single ended or differential input and is connected to IN2P/M. There must not be any connections to J1 or J2 while the on-board microphone is used to preserve the performance of the microphone. Gain adjustment can be needed in the device depending on the microphone sensitivity.