NuMaker-HMI-N9H20
Mar. 15, 2022
Page
38
of 42
Rev 1.00
NUMA
K
E
R
-HMI
-N
9H20
US
E
R M
A
NU
A
L
Ma
k
er Nu
-m
be
d
NUC
47
2
Us
er Man
ua
l
3.9
NuMaker-N9H20 Audio Codec Controller Circuit
Figure 3-9 shows the NuMaker-N9H20 audio codec controller circuit.
Figure 3-9 NuMaker-N9H20 Audio Codec Controller Circuit
AUO1
+
CP28
10u
VSSD
SDIO
GPIO3
AUXOUT
RMICN
LAUXIN
VD33
CB32
0.1u
VSSA
AUI2
LMICN
R69
33
VSSA
AUXOUT2
AUI1
VD
D
C
R76 33
LOUT
RSPKOUT
JP4
SPKOUT
1
2
RHP
VS
VDDA
C25
1u
R70
33
(EPAD = VSSA)
CB29
0.1u
GPIO3
VD33
R67 33
R65
2K2
LMICP
(GPB13)
AUXOUT1
FS
RHP
AUXOUT1
IM
C
LK
VSSD
GPIO2
(GPB14)
R72
10K
RAUXIN
VSSA
LH
P
C26
1u
LMICP
CB28
0.1u
(GPB5, NUA882x ONLY)
VSSA
RMICN
MODE
VD33
C30
10u
RAUXIN
CP26
4.7u
L20
FB
CB31
0.1u
DACIN
(GPB6)
R74
0
C28
1u
AUXOUT2
SCLK
BCLK
VS
L19
FB
C24
1u
R71
10K
MIC_L
VD33
SDIO
C27
1u
SCLK
(GPB4)
AD
C
OU
T
LAUXIN
LHP
MODE
GPIO3
VD
D
A
VDDP
D
AC
IN
R64 10K
VSSA
R73
0
C22
1u
(GPB3)
VDDB
EPAD
U10
NAU8822
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
LMICP
LMICN
LLIN/GPIO2
RMICP
RMICN
RLIN/GPIO3
FS
BCLK
AD
C
OU
T
D
AC
IN
M
C
LK
VSSD
VD
D
C
VD
D
B
C
SB
/GP
IO1
SC
LK
SDIO
MODE
LAUXIN
RAUXIN
AUXOUT1
AUXOUT2
NC
VSSSPK
NC
VD
D
SP
K
VR
EF
VSSA
RHP
LH
P
VD
D
A
M
IC
BI
AS
EPAD
VS
LOUT
VSSD
ADCOUT
GPIO2
VDDC
JP3
AUXIN
1
2
VSSP
IBCLK
CSB
M2
MIC
JP2
AUXout
1
2
RMICP
LS
PK
OU
T
LSPKOUT
CSB
LMICN
R66
2K2
MCLK
VSSA
VS
C
SB
C31
10u
ISC
LK
VD33
NAU8822
VSSP
M
IC
BI
AS
(GPB2)
RMICP
VSSA
C29
1u
R63 10K
MICBIAS
L18
FB
J1
CSB
1
CB30
0.1u
VSSA
M1
MIC
J2
CSB
1
ROUT
AUO2
R62
2K2
GPIO2
RSPKOUT
BCLK
VD
D
P
R68
2K2
ROUT
C23
1u
SPKOUT
VD
D
B
+
CP27
10u
MCLK
VSSP
VREF
+
CP31
10u
+
CP30
10u
FS
+
CP29
10u
J3
CSB
1
AUXIN
MIC_R
VSSD
R75
0
L21
FB