Supra SFD-1224U Schematic
9
8
7
6
5
4
3
2
1
Q3
RST_MUTE
16
15
14
13
12
11
10
10K
R67
[1]
9014
D9 I N4148
SD-CARDA
EQ8V
E
FF
A3
1/1
123
CN1
RCA-OUT
123
RCARR
RCA-OUT
S1
YK-NCD3033MB
FREE
合科
mm
C303
225P
C302
225P
Q5
Q4
9014
225P
R16
10K
C301
9014
6.8K
R301
1K
R309
225P
10K
C304
R15
7 8
6
5
K9K1
RESET
4
[1]
LEVER
C20 104
C19
225
C17
105
C18
104
[1]
AVCC
3
224
C16
8
7
6
VCC
CLK5DIO
U3
HOLD-
105
C15
CS-2DO3WP-4GND
1
TP1
100K
R40
2
47K
R68
VCC
USB_DET
[1]
[1] DM
[1] +3V3
[1]
C29 104
105
C12
C11
104
DP
[1]
MP3_ROUT
[1] MP3_LOUT
[1]
[1]
VOL+
[1]VOL-
[1]
KB-CE
[1]
KB-CLK
KB-DATA
[1]
KEY1
[1]
IR
[1]
[1]
DTH2
Q401
[1]
USB_DET
9014
47K
R417
CON3
CON17P_PART
GND
VOL+
17
AUX-L
16
VOL-
15
AUX-R
14
CE
13
+9V
12
CLK
11
DTH1
10
DATA
9
K2
8
K1
7
DM
6
IR
5
DP
4
DTH2
3
+5V
2
1
1
[1]AUX_L
[1]A UX_R
[1]EQ8V
[1] DTH1
[1] KEY2
[1] DM
[1]
DP
KB-5V
[1]
E
[1]
LV13605A
IR
47K
R46
5.6V
ZM1
ACC_DET
D
U6
103P
C31
R19
R2
4.7K
[1]
[1]
BEEP
R39
100K
1234567
D13IN4148
D130IN4148
22K
R6
10U/16V
EC401
R24
8050
Q1
C24 15P
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
U1Z
103
C25
47K
47K
47K
R55
R47
R59
[1]
VOL+
10K
10K
R10
R11
VCC
D12
RB080L-30
47K
L8
4.7UH/8A
R32
R45
10K
R26
1K2
E9
E3
C35
C36
[1]
+14V
[1]VCC
1K
R23
47K
E
8550
Q10
[1] +3V3
R17
E
8550
Q9
RESET
K9K
R467 10M
C23 15P
24MHZ
X3
X2
32.768KHZ
23
25
29
30
GND
LOSCO26LOSCI27HOSCO28HOSCI
ON_OFF24RTCVDD
GPIO_F7
GPIO_F431GPIO_F532GPIO_F6
GND
VDD
GPIO_A7/CE5GPIO_B2/MRD-
GPIO_B3/MWRGPIO_A3
GPIO_C0
GPIO_C2
GPIO_C1
ATS2503
GPIO_E3
GPIO_C3
GPIO_E1
VCCOUT_SD
VCC
D7
GPIO_F350D651GPIO_F252D553GPIO_F154D455GPIO_F056D357GPIO_A458D259GND60D161D062SPI_SCLK63SPI_MOSI64GPIO_B7
49
C26 103
47K
47K
47K
100K
R60
R12
R58
R57
[1]
DC5V
VOL-
SD_DET
ACC_DET
[1]
[1]
10K
10K
C1 105
R25
R14
E
8550
Q2
47K
R4
4K7
R31
1000UF/16V
2200UF/16V
104P
100P
E2
106P
DD01
IN4148
[1]
[1]
MUTE
SYS-POWER
[1]
47K
R18
100R
D10 IN4148
104
C33
[1]
DC5V
C21 105
C98 104
17
18
19
22
VDD20VCC21BAT
VREFI
DC_5V
LRADC1
AGND
AVCC
FMINR
FMINL
MICIN
PAGND
AOUTR
PAVCC
AOUTL
USBDP
USBDM
USBGND
UVCC
GPIO_A1
SPI_SS
SPI_MISO
10K
10K
10K
10K
R62
R65
R63
R61
2K2
2K2
[1]
L6
[1]
L7
DTH2
DTH1
RA-RST
[1]
[1]
I2C-CLK
I2C-DATA
CARD1
D2
11
D3
10
CMD
9
GND
8
DET
7
3V
6
CLK
5
GND
4
D0
3
D1
2
WP
1
R8 1K
R9 47K
D
C
E8
[1]
+14V
R21
10K
9.1V
882
104P
DC5V
EQ8V
BEEP
LEVER
[1]
[1]
[1]
RST_MUTE
[1]
[1]
[1]
[1]
[1]
RA-RST
I2C-CLK
I2C-DATA
100UF/35V
104P
C8
Q16
R69
100R
R22
120K
8050
10K
R70
47K
R66
104P
Z1
EC2
100U/16V
C431
D7
Q15
8050
4K7
R71
R5
22K
C14
+14V
IN4001
IGO 1
IC1
78M05
3
KB-5V
[1]
[1]
[1]KB-CE
[1]
MUTE
SYS-POWER
KB-DATA
1k5
1k5
R49
R52
10K
[1]
D8
IN4001
2
E334
47U/16V
C335
104
[1]
[1]
[1]+3V3
[1]
[1]
[1]
KEY2
KB-CLK
AVCC
KEY1
4.7K
4.7K
R44
R43
10K
10K
10K
1k5
R54
R3
R48
R53
RX
TX
47K
R56
VCC
C
220K
R345
R304
R305
IN4001
D3
100R/2W
C340
C314
225P
225P
RA-VCC3.3V
[1]
2.2K
2.2K
33P
104P
2.2K
B
1000UF/10V
1000UF/10V
R1
R29
100R
R37
120K
R33
120K
882
Q14
470P
C337
225
C338
NC
R347
470P
NC
R346
220K
R348
FL
5.6K
R349
225
C307
5.6K
5.6K
105P
C331
1M
R326
C333
105P
225P
C313
1M
105P
C320
1K
R323
NC
1K
NC
R317
NC
NC
0R
0R
R324
R318
[1]
[1]
MP3_LOUT
MP3_ROUT
472P
NC
NC
472P
L5
10UH
4.7K
R217
8050
+
Q201
100U/16V
EC201
33P
C3
R208
R207
C205
C204
R3102
10K
R469
E
772
Q8
C27 105
D1
5V6
8050
Q13
DD1
IN5819
EC1
D20NC
10K
R28
R64
10R
9014
Q308
NC
R350
104
C336
D302
IN4148
C332 104P
D303IN4148
9014
Q305
R325
22K
9014
2.2K
Q302
225P
R307
4.7K
9014
Q304
2.2K
C321
225P
4.7K
R313
1M
R314
2.2R 1/4W
R312
R322
C330
R316
C329
C208
UnRegistered
R212
R211
C207
104P
C209
ZD201
3.6V
R216
1K
4.7R
R215
Q402
9014
1K
R468
4K7
R34
680R
R451
C30 105
100U/16V
Q6
100K
R27
10K
47K
R299
R327
[1] MUTE
R308
R306
R315
B
A
CON1
CN15
GND4GND5ANT6ACC7RL-8RL+9FL-10FL+11RR+12RR-13FR+14FR-15FR-
1B+2B+3
D306
L1
330MH
8
+14V
7
6
123
C0N1
AUX-IN
12K
12K
R321
R331
5
225P
C334
225P
C325
4
4.7R
IN5822
R7
E5
E6
[1]
14
10
2
1
OUT1
VCC
3
VCC
13
ST-BY4IN1
7
IC3
100U/16V
E4
E1
E15
470P
C341
C342 225P
NC
R341
NC
R342
5.6K
R343
225
C308
[1] AUX_L
[1]
AUX_R
R320
3K
R332
3K
[1]
[1]
I2C-CLK
I2C-DATA
2.2K
2.2K
R310
R311
28
CLK
U4
SC7313S
47U/16V
REF2VDD3AGND4TR_L5TR_R6R_IN7R_OUT8LD_R9TA_R10CD_R11RA_R12LD_L13TA_L14CD_L
EC315
1
+
+
104P
EC316
C317
100U/16V
TDA7377
S-GND
OUT2
9
OUT415OUT3
PW-GND
8
SVR
6
IN4
IN212IN3
5
225P
105P
C343 225P
5.6K
R338
225
C306
26
DGND27DATA
272P
C319
272P
C318
100U/16V
E20
11
470P
C345
C339 225P
NC
R340
220K
R339
5K6
R344
225
C305
C309104P
104P
C310
C311
104P
C312104P
R330
220K
15
17
18
22
R_R23R_L24F_R25F_L
RA_L16L_IN
L_OUT
220K
BAS_INL19BAS_OTL20BAS_INR21BAS_OTR
R329
C328
103P
C326 103P
C322
C324
225P
225P
C327
C323
3
5.6K
5.6K
R214
L_OUT
10
R_OUT
9
GND
8
VCC3.3V
7
NC
6
RA_DATA
5
4
RA_CLK
3
R38
2.2K
9018
[1]
CN2
470R
Q7
L4
RA-VCC3.3V
RA_RST
GND
ANT-IN
103P
C2
R36
100K
474P
C5
AMI
U1
GND14GND15RES16SEN17SCLK18SDATA19RCLK20VIO21VDD22GND23ROUT24LOUT
13
2
1
[1]
[1]
[1]
R-CLK
R-DAT
RA-RST
RA-VCC3.3V
ANT
FAN
D5
IN4148
1
2
10UH
D6 IN4148
L3
100P
C4
10P
L2
120NH
C13
8
9
3
4
5
1
2
6NC7
10NC11NC12
NC
DFS
INT
FMI
GPO1
FGND
DOUT
GPCLK
IC-SI4730
10R
FB1
C7 106
[1]
[1]
[1]
R-CLK
R-DAT
RA-VCC3.3V
2
1
R213
4.7K
4.7K
R210
R209
[1]
[1]
[1]
RA-L
RA-R
22P
22P
C10
C9
X1
32.768khz
[1]
RA-L
[1]
R-DAT
RA-R
[1]
104
C6
[1]
R-CLK
A
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