Control
PGA_R | Right channel PGA gain: +1.5dB/step, -12dB ~ +10.5dB ‘0’: -12 dB ‘1’: -10.5 dB … ‘15’ +10.5 dB (Note: These bits are connected to AR36U12.PDM_CORE_CFG.PGA_R) |
PGA_L | Left channel PGA gain: +1.5dB/step, -12dB ~ +10.5dB ‘0’: -12 dB ‘1’: -10.5 dB … ‘15’: +10.5 dB (Note: These bits are connected to AR36U12.PDM_CORE_CFG.PGA_L) |
SOFT_MUTE | Soft mute function to mute the volume smoothly ‘0’: Disabled. ‘1’: Enabled. (Note: This bit is connected to AR36U12.PDM_CORE_CFG.SOFT_MUTE) |
STEP_SEL | Set fine gain step for smooth PGA or Soft-Mute attenuation transition. ‘0’: 0.13dB ‘1’: 0.26dB (Note: This bit is connected to AR36U12.PDM_CORE2_CFG.SEL_STEP) |
ENABLED | Enables the PDM component: ‘0’: Disabled. ‘1’: Enabled. |