www.elv.com
Audio Technology 7
Figure 8: Circuit diagram SUP3
5
4
3
2
1
TPS61040DBV
IC4
GND
FB
SW
EN
Vin
16V
10u
C67
50V
100n
C71
50V
22p
C68
820
K
R6
1
270
K
R6
2
BAT54J
D4
3,3uH/1,1A
L1
IRLML
6401
T6
10K
R5
8
PTC 16V
0,35A
R57
1,5V
Mignon
BAT2
1,5V
Mignon
BAT1
+UBat
PWRE
N
MP14
2M
2
R6
4
220
K
R6
5
TPS61040DBV
1
2
3
4
5
IC6
GND
FB
SW
EN
Vin
C77
10u
16V
C79
10u
50V
C80
10u
50V
C81
100n
50V
BAT54J
D5
6,8uH/0,94A
L2
+U-OLED
50V
22p
C78
12
11
10
9
8
7
6
5
4
3
2
1
BU4
12
11
10
9
8
7
6
5
4
3
2
1
BU5
12
11
10
9
8
7
6
5
4
3
2
1
BU6
10
9
8
7
6
5
4
3
2
1
ST1*
62
61
60
59
58
57
56
55
54
53
52
51
50
49
46
45
44
43
42
41
40
39
38
37
36
35
34
33
30
29
28
27
26
25
24
23
22
21
20
17
16
15
14
11
10
9
8
7
6
5
4
3
2
1
STM32F107RC
IC3
PC12
PC11
PC10
PC9
PC8
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
PD2
NRST
BOOT0
VBAT
PD0 OSC_IN
PD1 OSC_OUT
PB15
PB14
PB13
PB12
PB11
PB10
PB9
PB1
PB0
PB2 BOOT1
PB3 JTDO
PB4 JNTRST
PB5
PB6
PB7
PB8
PA0 WKUP
PC15 OSC32_OUT
PC14 OSC32_IN
PC13 TAMPER RTC
PA15 JTDI
PA14 JTCK SWCLK
PA13 JTMS SWDIO
PA12
PA11
PA10
PA9
PA8
PA7
PA6
PA5
PA4
PA3
PA2
PA1
64
63
48
47
32
31
19
18
13
12
STM32F
107RC
IC3
GND GND GND GND AGND
Vcc Vcc Vcc Vcc AVcc
24 MHz
Q1
16V
100n
C59
50V
10n
C60
50V
1n
C61
16V
1u
C62
10V
Tantal
47u
C66
+
100n
16V
C56
10n
50V
C57
1n
50V
C58
100n
16V
C53
10n
50V
C54
1n
50V
C55
100n
16V
C50
10n
50V
C51
1n
50V
C52
+VSTM
100n
16V
C63
10n
50V
C64
1n
50V
C65
47u
10V
Tantal
C48
+
50V
27p
C42
50V
27p
C43
0R
R41
+U-OLED
5
4
2
3
1
Inkrementalgeber
mit Taster
DR1
C
B
A
16V
100n
C30
16V
100n
C31
16V
100n
C32
TA1
100n
16V
C44
TA2
16V
100n
C45
TA3
16V
100n
C46
TA4
16V
100n
C47
IRLML
6401
T4
T5
BC847C
10K
R4
7
100
K
R4
6
220
K
R2
5
220
K
R2
6
1K
R43
10K
R5
4
220K
R42
16V
100n
C23
+UBat
50V
100p
C36
50V
100p
C37
50V
100p
C38
50V
100p
C39
50V
100p
C40
50V
100p
C41
100K
R3
7
100K
R3
6
100
K
R3
9
100K
R35
10K
R3
8
6
5
4
3
2
1
PRG1
+UB
RST
TX
RX
BOOT
GND
100n
16V
C35
10
K
R3
4
S-1206B33
U3T1
IC5
GND
IN
OUT
IRLML
6401
T7
IRLML
6401
T8
16V
100n
C75
16V
100n
C74
16V
10u
C76
10
K
R5
5
MP16
MP15
MP17
MP18
MP19
MP20
MP21
MP22
MP4
MP5
MP6
+VSTM
BAT54J
D7
C72
10V
Tantal
220u
+
220u
10V
Tantal
C73
+
BC847C
T11
10K
R59
100
K
R6
0
10K
R6
3
OL
ED_Pwr
16V
4u7
C49
22R
R56
+5VUSB
1K
R32
10K
R33
C10
1u
16V
C9
1u /16V
R7
47K
R8
47K
R9
100
K
R10
1K8
R11
12K
C13
50V
680p
R14
470R
C11
50V
10n
C17
16V
1u
C16
1u /16V
R17
47K
R1
8
47K
R1
9
100
K
R20
1K8
R21
12K
C20
680p
50V
R24
470R
C18
10n
50V
C1
1u/50V
C2
1u
50V
C4
100n
16V
R2
470R
R1
470R
D25
ESD9B5.0ST5G
D26
ESD9B5.0ST5G
D27
ESD9B5.0ST5G
C3
50V
1u
C6
16V
100n
C5
16V
2u2
BU11
6
5
4
3
2
1
Stereo
Klinkenbuchse
R3
10K
C7
16V
220n
C8
1u /16V
DAC1
C15
1u /16V
DAC2
IC13
4
8
TLV272ID
7
5
6
IC13
TLV272ID
B
-
+
+
C12
16V
1u
C19
16V
1u
IC14
10
9
8
7
6
5
4
3
2
1
NJM2761
INT
SENSE
SW
OUT_B
OUT_A
VREF
GND
V+
IN_B
IN_A
+5VUSB
+UB
+3.3V
10u
50V
C69
10u
50V
C70
+VSTM
SP0503BAHTG
1
2
3
4
D24
+5VUSB
10n
50V
C34
Ferrit
L3
22R
R31
22R
R29
1K5
R28
USB-Buchse
1
2
3
4
5
6
BU9
PTC6V/0,5A
R27
100n
100V
C33
16V
22n
C26
+3.3V
10K
R5
0
100n
16V
C29
Antennen-
buchse
BU10
10
K
R5
3
BC848C
T14
16V
100n
C25
+3.3V
+3.3V
10K
R52
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
Si4711
IC12
VDD
GND
DFS
DIN
LIN
RIN
/SEN
SCLK
SDIO
/RST
VIO
GPO1
GPIO2/IRQ
GPIO3/DCLK
RCLK
TXO
RFGND
10K
R51
10p
50V
C27
+UB
RCLK
D6
1N4148W
1N4148W
D28
MP23
10K
R40
T15
IRLML
2502PbF
1M
R4
5
16V
1u
C24
+5VUSB
PWREN
DAC1
DAC2
RCLK
C22
16V
100n
4K7
R4
9
4K7
R4
8
L7
Ferrit
L8
Ferrit
L5
Ferrit
120nH
L4
10p
50V
C28
1K5
R6
1K5
R16
C82
100n
16V
D29
1N4148W
+3.3V
10
K
R4
4
220
R
R3
0
+VSTM
+VSTM
+VSTM
OL
ED_Pwr
R6
7
10K
R6
6
10K
1K5
R5
1K5
R15
IC15
HT-7544-1
GND
IN
OUT
C84
22u
10V
Tantal
+
C83
1u
16V
BAT_E
N
+4.4V
+UB
BAT_EN
+VSTM
+4.4V
+4.4V
+4.4V
10K
R4
Lim_EN
Lim_EN
+4.4V
orange
D30
1
3
2
IC13
TLV272ID
-
+
+
A
F3
ST4*
1
2
3
4
Data lines
Control lines
Suppl
y
4
F
1
F
F2
F3
n.i.p.
USB 2.0
Interface
RF-
OUT
Audio
IN
Analog
Limiter
Low-Pass
FM-Transmitter
Microcontroller
Power supply
OLED