Owners manual

System
H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 266
4.21.2.2. Filter/Reference
MBIAS
O
Bias voltage output for main microphone
VRA1
O
internal reference voltage
VRA2
O
internal reference voltage
VRP
O
internal reference voltage
4.21.2.3. Power/Ground
AVCC
P
Analog power
AGND
G
Analog ground
4.21.3. Data Path Diagram
+
-
+
-
G
G
G
G
+
M
M
+
G
M
M
M
M
M
+
G
M
M
M
+
M M M M M M
M
M
ADC_R
ADC_L
DAC_L
DAC_R
M
M
-1
G
M
LINEOUTR
LINEOUTL
LINEINL
LINEINR
MIC1P
MIC1N
MIC2P
MIC2N
SYSTEM
BUS
2.5V
MICBIASEN
MICBIAS
G
M
M
Figure 4-15. Audio Codec Data Path Diagram
4.21.4. Audio Codec Register List
Module Name
Base Address
AC
0X01C22C00
Register Name
Offset
Description
AC_DAC_DPC
0x000
DAC Digital Part Control Register
AC_DAC_FIFOC
0x004
DAC FIFO Control Register
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