SBAS993B May 2019 – October 2019 TLV320ADC3140
PRODUCTION DATA.
This register is configuration register 0 for channel 3.
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
CH3_INTYP | CH3_INSRC[1:0] | CH3_DC | CH3_IMP[1:0] | Reserved | CH3_AGCEN | ||
R/W-0h | R/W-0h | R/W-0h | R/W-0h | R-0h | R/W-0h |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7 | CH3_INTYP | R/W | 0h | Channel 3 input type.
0d = Microphone input 1d = Line input |
6-5 | CH3_INSRC[1:0] | R/W | 0h | Channel 3 input configuration.
0d = Analog differential input (the GPI3 and GPO3 pin functions must be disabled) 1d = Analog single-ended input (the GPI3 and GPO3 pin functions must be disabled) 2d = Digital microphone PDM input (configure the GPO and GPI pins accordingly for PDMDIN2 and PDMCLK) 3d = Reserved |
4 | CH3_DC | R/W | 0h | Channel 3 input coupling (applicable for the analog input).
0d = AC-coupled input 1d = DC-coupled input |
3-2 | CH3_IMP[1:0] | R/W | 0h | Channel 3 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 | CH3_AGCEN | R/W | 0h | Channel 3 automatic gain controller (AGC) setting.
0d = AGC disabled 1d = AGC enabled based on the configuration of bit 3 in register 108 (P0_R108) |