4 Digital Microphone Power Consumption

Table 4-1 and Table 4-2 describes the typical current consumption of the PCM6480 when the digital microphone inputs are used with an external PDM modulator 4^th and 5^th order, respectively. PCM6480 supports up to 4 PDM channels. The Digital Microphone is selected by:

• Configuring the corresponding channel for digital microphone input in the CHx_INSRC field in the CHx_CFG0 register.
• Configuring the corresponding GPIOx pin as PDMCLK output in the appropriate GPIO_CFGx register.
• Configuring the corresponding GPIx pin as PDM input in the appropriate GPI_CFGx register.