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PCM1870 Datasheet(PDF) 35 Page - Texas Instruments

Part # PCM1870
Description  16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier
PDF  52 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

PCM1870 Datasheet(HTML) 35 Page - Texas Instruments

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PCM1870
SLAS544A – MAY 2007 – REVISED SEPTEMBER 2007
Register 90
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 90
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
RSV
RSV
RSV
RSV
G20R
G20L
IDX[6:0]: 101 1010b (5Ah) Register 90
G20R: 20-dB Boost for PG2 (Gain Amplifier for AIN1R and AIN2R)
Default value: 0
This bit is used to boost the microphone signal when the analog input is small.
G12R
G20R
PG2 GAIN
(REGISTER 124)
(REGISTER 90)
0
0
0 dB (default)
0
1
20 dB
1
0
12 dB
1
1
Reserved
G20L: 20 dB Boost for PG1 (Gain Amplifier for AIN1L and AIN2L)
Default value: 0
This bit is used to boost the microphone signal when the analog input is small.
G12L
G20L
PG1 GAIN
(REGISTER 124)
(REGISTER 90)
0
0
0 dB (default)
0
1
20 dB
1
0
12 dB
1
1
Reserved
Copyright © 2007, Texas Instruments Incorporated
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