JAJSSO5 December 2023 PCM5140-Q1
ADVANCE INFORMATION
This register is configuration register 0 for channel 1.
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
CH1_INTYP | CH1_INSRC[1:0] | CH1_DC | CH1_IMP[1:0] | Reserved | CH1_DREEN | ||
R/W-0h | R/W-0h | R/W-0h | R/W-0h | R-0h | R/W-0h |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7 | CH1_INTYP | R/W | 0h | Channel 1 input type. 0d = Microphone input 1d = Line input |
6-5 | CH1_INSRC[1:0] | R/W | 0h | Channel 1 input configuration. 0d = Analog differential input (the GPI1 and GPO1 pin functions must be disabled) 1d = Analog single-ended input (the GPI1 and GPO1 pin functions must be disabled) 2d = Digital microphone PDM input (configure the GPO and GPI pins accordingly for PDMDIN1 and PDMCLK) 3d = Reserved |
4 | CH1_DC | R/W | 0h | Channel 1 input coupling (applicable for the analog input). 0d = AC-coupled input 1d = DC-coupled input |
3-2 | CH1_IMP[1:0] | R/W | 0h | Channel 1 input impedance (applicable for the analog input). 0d = Typical 2.5-kΩ input impedance 1d = Typical 10-kΩ input impedance 2d = Typical 20-kΩ input impedance 3d = Reserved |
1 | Reserved | R | 0h | Reserved |
0 | CH1_DREEN | R/W | 0h | Channel 1 dynamic range enhancer (DRE) and automatic gain controller (AGC) setting. 0d = DRE and AGC disabled 1d = DRE or AGC enabled based on the configuration of bit 3 in register 108 (P0_R108) |