PCM1861_15 Datasheet, PDF (82/115 Pages) Texas Instruments – PCM186x 110dB 2ch and 4ch Audio ADCs with Universal Front End

PCM1861, PCM1863, PCM1865
SLAS831C – MARCH 2014 – REVISED AUGUST 2014
APGA_CH2_R
APGA_CH2_L
APGA_CH1_R
APGA_CH1_L
1: Manual gain mapping
DPGA Control Mapping (4-channel device only)
Gain control mode for analog PGA of CH2_R channel
Default value: 0
0: Auto gain mapping (Default)
1: Manual gain mapping
DPGA Control Mapping (4-channel device only)
Gain control mode for analog PGA of CH2_L channel
Default value: 0
0: Auto gain mapping (Default)
1: Manual gain mapping
DPGA Control Mapping (4-channel device only)
Gain control mode for analog PGA of CH1_R channel
Default value: 0
0: Auto gain mapping (Default)
1: Manual gain mapping
DPGA Control Mapping (4-channel device only)
Gain control mode for analogPGA of CH1_L channel
Default value: 0
0: Auto gain mapping (Default)
1: Manual gain mapping
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Page 0 / Register 26 (Hex 0x1A)
Dec
Hex
b7
b6
b5
b4
b3
b2
b1
b0
26
0x1A DIGMIC_IN1_SEL DIGMIC_IN1_SEL DIGMIC_IN0_SEL DIGMIC_IN0_SEL
1
0
1
0
RSV
RSV
DIGMIC_4CH
DIGMIC_EN
Reset Value
0
0
0
0
0
0
0
0
RSV
DIGMIC_IN1_SEL[1:0]
DIGMIC_IN0_SEL[1:0]
DIGMIC_4CH
DIGMIC_EN
Reserved
Reserved. Do not access.
Select which pin is used for digital mic data input for MIC1 interface (4CH device Only)
Default value: 00
00: GPIO0 (Default)
01: GPIO1
10: Invalid
11: Invalid
Select which pin is used for digital mic data input for MIC0 interface
Default value: 00
00: GPIO0 (Default)
01: GPIO1
10: Invalid
11: Invalid
(4ch device only) Select if the second pair of filters will be used for digital Microphone as signal
processing
Default value: 0
0: configured for analog ADC signal processing (Default)
1: configured for digital MIC signal processing
Select if the first pair of filters will be used for digital Microphone as signal processing
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