SLAS831D March 2014 – March 2018 PCM1860 , PCM1861 , PCM1862 , PCM1863 , PCM1864 , PCM1865
PRODUCTION DATA.
As discussed in the Programmable Gain Amplifier section, the digital PGA gain can be controlled by the auto gain mapping function, that will use the analog gain settings in register PGA_VAL_CH1_L (Page.0 0x01) and related registers to achieve the target gain with a combination of digital and analog gain. However, digital gain can be also controlled directly by disabling the auto gain mapping function using register PGA_CONTROL_MAPPING (Page.0 0x19). Manual update of digital PGA is only available in 4-channel devices because the digital PGA gain is fixed to 0 dB when manual gain mapping is enabled.