UM
240
3
Ele
c
tric
al sch
emat
ics
UM2
403
Re
v 1
51
/78
Figure 32. STM32G081B-EVAL audio
5
12
Audio
Title:
Size:
Reference:
Sheet:
of
A4
Revision:
Project:
STM32G081B-EVAL Mother board
MB1350
B 01
31-AUG-17
Variant name is not interpreted until output
Date:
-
Variant:
C47
180pF
C51
100nF
R66
100K
R69
100K
TP9
MIC_OUT
TP8
MIC+
R74
1K
R72
100
R73
2.2K
C54
47pF
R67
15K
1
3
2
RV1
[N/A]
C46
[N/A]
R62
0
R61
510
Audio_IN
4
3
1
2
5
U12
TS461CLT
C61
10uF
C59
4.7uF
C60
2.2uF
R68
18K
R59
82K
R70
680
C58
4.7uF
PA6
VDD_ANA
VDD_ANA
VDD_ANA
C50
100nF
R108
10K
JP18
C69
1uF
C66
330nF
R89
20K
Audio_OUT_L
C65
[N/A]
C80
330nF
R95
20K
Audio_OUT_R
R93
0
C78
[N/A]
R90
4.7K
C73
1.5nF
R94
4.7K
C76
1.5nF
C68
220uF
R86
1K
C77
220uF
R92
1K
C75
1uF
Default setting: close
C74
100nF
VDD_ANA
VDD_ANA
VDD_ANA>2.2V
VDD_ANA>2.7V
PA4
PA5
3
2
1
JP6
Shutdown
6
Bypass
4
VIN2
7
VIN1
3
VOUT1
2
VCC
1
GND
5
VOUT2
8
9
U17
TS488IQT
JP4
2
6
4
3
CN15
PJ3028B-3
Left
Right
Microphone
1
3
2
4
5
6
D6
ESDA6V1BC6
JP19