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NuMaker-HMI-MA35D1-S1
Nov. 2, 2022
Page
85
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Rev 1.01
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6.2.13
NAU88C22 Audio Codec Schematic
Figure 6-24 shows the NAU88C22 audio codec circuit of the NuMaker-BASE-MA35D1B1 board.
Figure 6-24 NAU88C22 Audio Codec Schematic
K3
R234
0
R0603
AUDIO_JKDET
PI0
AUDIO_JKDET (EBI_ADR0)
RMICP
C52
4.7uF
C0603
T14 SPK R (NC)
1
T15 SPK L (NC)
1
SPK OUT
SPK L
SPK R
PK14
PK13
I2S0_DO
I2S0_DI
I2S0_BCLK
I2S0_LRCK
PK15
I2S_0 (SC_0)
RMICP
I2S0_MCLK
I2C_2 (EBI_ALE)
GND
MIC
R
L
CTIA
N162
N61
RMICN
T16 AUXO2 (NC)
1
T17 AUXO1 (NC)
1
N64
N163
T18 AUXI_R (NC)
1
VSSA
VSS
RSPKOUT
VSSA
VSSA
LMICP
I2S_I2C2_SDA
T19 AUXI_L (NC)
1
N62
LMICP
LMICN
I2S0_BCLK
I2S0_LRCK
LMICN
VR
EF
LSPKOU
T
SPK_A3V3
(EPAD = VSSA)
VDD3V3
AU
D
IO_D
3V3
I2S0_M
C
LK
I2S_I
2C
2_SC
L
AU
D
IO_D
3V3
EPAD
U18
NAU88C22YG
LMICP
1
LMICN
2
LLIN/GPIO2
3
RMICP
4
RMICN
5
RLIN/GPIO3
6
FS
7
BCLK
8
AD
C
OU
T
9
D
AC
IN
10
M
C
LK
11
VSSD
12
VD
D
C
13
VD
D
B
14
C
SB/
GPI
O1
15
SC
LK
16
SDIO
17
MODE
18
LAUXIN
19
RAUXIN
20
AUXOUT1
21
AUXOUT2
22
RSP_O
23
VSSSPK
24
LSP_O
25
VD
D
SPK
26
VR
EF
27
VSSA
28
RHP
29
LH
P
30
VD
D
A
31
M
IC
BI
AS
32
EPAD
33
MODE
RSPKOUT
N60
M1
MIC
9.7D2.54mm
P
N
AUDIO_D3V3
LSPKOUT
VSS
VSS
MIC_BIAS
Title
Size
Document Number
Rev
Date:
Sheet
of
NAU88C22 Audio Codec
V2.0
NuMaker_MA35D1_Base
nuvoTon Technology Corp.
A
13
22
Thursday, February 10, 2022
VSSA
R220
33
R0603
C57
33pF
C0603
R212
2.2K
R0603
R213
2.2K
R0603
RHP
I2S0_D
I
LH
P
I2S0_D
O
C54
1uF
C0603
AUDIO_JKDET
C53
1uF
C0603
R221
33
R0603
C58
33pF
C0603
R216
4.7K
R0603
R217
4.7K
R0603
CB28
0.1u
C0603
C51
4.7uF
C0603
R211
680
R0603
N65
CB26
0.1u
C0603
CB27
0.1u
C0603
R210
0
R0603
Microphone
Speaker
Earphone
N66
R222
0
R0603
VSS
R224
0
R0603
R226
0
R0603
R223
0
R0603
R229
0
R0603
R231
0
R0603
Codec
VSSA
VSSA
4
K3
K2
6
1
2
3
MS
5
AUDIO_D3V3
R218
100K
R0603
AUDIO_JKDET
R312
0
R0603
R233
0
R0603
2, Source
AUDIO_JKEN#
PD13
3, Drain
1, Gate
AUDIO_JKEN# (EBI_nCS2)
PB9
Q6
SI2302 (NMOS)
SOT-23
1
3
2
CON11
2SJ3080-000111F SMD
DETECT
5
G/M
3
GND
6
LEFT
1
RIGHT
2
M/G
4
MS
7
SI2302 (NMOS)
Q5
SI2302 (NMOS)
SOT-23
1
3
2
AUDIO_D3V3
LHP
RHP
R214
10K
R0603
K1
R215
100K
R0603
AUDIO_JKEN#
PN15
PK[15:12]
PN15
PK[15:12]
VSS
+
C56
100uF/6.3V
VSS
LHP
+
C59
100uF/6.3V
PB[9:8]
RHP
PB[9:8]
C61
1nF
C0603
VSSA
N68
C60
4.7uF
C0603
PD13
VSSA
VSSA
PD13
U19
NSP4201MR6T1G
TSOP-6
CH4
6
CH2
3
CH3
4
Vn
2
Vp
5
CH1
1
R209
NC
R0603
VSSA
VSSA
R219
10K
R0603
R225
10K
R0603
C55
4.7uF
C0603
R228
0
R0603
R227
2.2K
R0603
AUDIO_A3V3
VSSA
VSSA
MIC_BIAS
N67
VSSA
AUDIO_A3V3
AUDIO_A3V3
AUDIO_A3V3
VSSA
SPK_A3V3
T20 AUDIO_3V3 (NC)
1
PB8
N104
VSS
I2S_I2C2_SDA
I2S_I2C2_SCL
VSS
PK12
PN15
L9
FB
N63
VDD3V3
VDD3V3
L10
FB
VSS
R230
0
R0603
R232
0
R0603
AUDIO_D3V3
AUDIO_D3V3
PI0
PI0
C49
10uF
C0603
C50
10uF
C0603
C62
10uF
C0603