SLASFD9 April 2025 TAC5301-Q1
PRODUCTION DATA
The TAC5301-Q1 supports voice activity detection (VAD) mode as part of low power activity detection (LPAD) schemes. In this mode, the TAC5301-Q1 continuously monitors one of the input channels for voice detection. The device consumes low quiescent current from the AVDD supply in this mode. This feature can be enabled by setting VAD_EN (P0_R120_D[2]) to 1'b1. On detecting voice activity, the TAC5301-Q1 can alert the host through an interrupt or auto wake up and start recording based on the I2C programmed configuration. This alert can be configured through the LPAD_MODE (P1_R30_D[7:6]) register bits.
The input channel for the VAD can be selected by setting the LPAD_CH_SEL (P1_R30_D[5:4]) register bits to an appropriate value. See the How to use the Voice Activity Detection in the TAx511x and TAx521x application report for further details.