Vo=1.25x(1+Rb/Ra)
Ra
Rb
SPDIF IN
HDMI TYPE C
HDMI TYPE A
TSSOP16
1
MCU Write
EDIDA
EEP_EN#
EEP_SEL
1
BUS OFF
0
0
0
X
MCU Write
EDIDC
HPD
RXCC-
RXCC+
RXC0-
RXC0+
RXC1-
RXC1+
RXC2-
RXC2+
VPA0
VPA1
VPA2
VPA3
VPA4
VPA5
VPA6
VPA7
VPB0
VPB1
VPB2
VPB3
VPB4
VPB5
VPB6
VPB7
VPC0
VPC1
VPC2
VPC3
VPC4
VPC5
VPC6
VPC7
ACL
K
SPDIF
AP1
AP2
AP3
AP4
AP5
VDD1V8
RXAC-
RXAC+
RXA0
-
RXA0
+
RXA1
-
RXA1
+
RXA2
-
RXA2
+
RXC2+
RXC2-
RXC1+
RXC1-
RXC0+
RXC0-
RXCC+
RXCC-
RXC2
+
RXC0
+
RXC1
-
RXC1
+
RXC2
-
RXCC+
RXC0
-
RXA2+
RXA0+
RXA1-
RXA1+
RXAC-
RXA2-
RXAC+
RXA0-
RXA2
-
RXAC+
RXAC-
RXA1
-
RXA1
+
RXA0
+
RXA0
-
RXA2
+
RXCC-
DDC_DATA_C
DDC_CLOCK_A
DDC_DATA_A
MCU_SCL
DDC_
D
AT
A_
C
DDC_
C
L
OCK_
C
VDDH
PD
VCLK
VS
HS
CS
DE
DDC_
D
AT
A_
C
DDC_
D
AT
A_
A
DDC_
C
L
OCK_
C
DDC_
C
L
OCK_
A
HPD_C
HDMIC_5V
HDMIA_5V
HPD_A
MCU_3V3
MCU_3V3
RXD1
TXD1
UPDATE_RXD0
UPDATE_TXD0
VPA3
VPC6
VPB3
VPA7
VPC3
VPA2
VPB7
VPC5
VPB2
VPA6
VPC2
VPB1
VPA1
VPB6
VPC4
VPC1
VPA5
VPB5
VPA0
VPB0
VPC0
VPA4
VPB4
VPC7
VCLK
VDDH1V8
A+3V3F
A+3V3F
A+3V3
A+3V3
A+3V3
TXD2+
TXD2-
TXD1+
TXD1-
TXD0+
TXD0-
TXD+
TXD-
HDMI_SCL_D
HDMI_SDA_D
HPD
TXD
+
TXD
0
+
TXD
0
-
TXD
1
+
TXD
2
-
TXD
2
+
TXD
1
-
TXD
-
HDM
I_
S
CL
_
D
H
D
M
I_S
D
A
_D
TXD0+
TXD-
TXD0-
TXD2-
TXD1+
TXD2+
TXD+
TXD1-
HDMI_SCL_D
HDMI_SDA_D
HDMI_SCL_D
HDMI_SDA_D
HPD
SPDIF
HS
VS
ACLK
SPDIF
AP5
AP3
AP2
AP1
AP4
DE
A+1V8
A+1V8
NRST
VDD0
NRST
VCLK
NCEC_
IRQ
NRST
_
CEC
CEC_
INPUT
CEC_9950
T
U
O
_
2
F
I
D
P
S
2
_
N
I
_
F
I
D
P
S
SPDIF1_OUT
VDD0
MCU_3V3
VDDH
VDD3V3
VDD1V8
VDDH1V8
VDD1V8
VDDH1V8
VDD0
VDD0
VDDH
VDD3V3
VDD3V3
CEC
CEC_9950
CEC_9950
CEC_9950
NVAI
HDMI_VCC
HDMI_VCC
1355_SPDIF_1
MCU_3V3
9950_MAIN_SDA
9950_MAIN_SCL
DDC_DATA_A
DDC_CLOCK_A
DDC_CLOCK_C
MCU_SDA
VA_IN
NRST
NVAI
PD
1355_SPDIF_1
NRST_CEC
UPDATE_RST
UPDATE_CTRL
RXD1
UPDATE_TXD0
TXD1
UPDATE_RXD0
SPDIF2_OUT
SPDIF1_OUT
TDA9950_INT
NCEC_
IRQ
NIRQ
UPDATE_CTRL
UPDATE_RST
9950_S
C
L
9950_S
D
A
MCU_SDA
HPD_A
MCU_SCL
HPD_C
A+1V8
VDDC1V8
VDDC1V8
VDDH
HDMIA_5V
HDMIC_5V
LPC2132_SCL
LPC2132_SDA
VDD0
NIRQ
MC
U
_
S
D
A
MC
U
_
S
C
L
9950_MAIN_SCL
9950_MAIN_SDA
TDA9950_INT
TXD1
M
C
U_
INT
HDMI_NO
NRST_CEC
HDMI_NO
A5V
CEC3V3
CEC3V3
VDD_9950
RXD1
DDC_CLOCK_A
DDC_DATA_C
DDC_DATA_C
DDC_DATA_A
DDC_CLOCK_C
9950_MAIN_SDA
EEP_EN#
DDC_CLOCK_A
DDC_DATA_C
DDC_DATA_A
9950_MAIN_SCL
EEP_SEL
MCU_SDA
MCU_SCL
HPD_A
HPD_C
EEP_EN#
EEP_SEL
VCC
V18
VCC
V33
VCC
VDDH
VDDH
VCC
MCU_3V3
MCU_3V3
VDDH
VDDC1V8
VDDC1V8
VDDC1V8
VDDC1V8
VCC
A5V
VCC
VDD_9950
VDD_9950
VDD_9950
HDMI_EPR_5V
HDMI_EPR_5V
HDMI_EPR_5V
VCC
HDMIC_5V
HDMIA_5V
HDMI_EPR_5V
VCC
C16
5PF
D1
9
CB2
0.1uF
J6
CON2.0-5
1
2
3
4
5
R79
10
R148
1K
R91
NC/1.2K
R60
33
R5
10
R7
4
7
K
R122
0
R144
47K
R1
4
2
1
0
K
R165
100
CB25
0.1uF
R21
0
R15
NC
R78
33
R130 30K
R9
2
2
.2
K
R104
10K
R5
4
1
0
0
MK2
R66
0
D41
1N4148
1
2
R27
27K
R
1
40
33K
L6
FB/600
Q5
2N3904
2
13
R101
33
R18
0
P3
HDMI TYPE-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
22
21
20
23
U4
AZ1117-Adj
SOT223
1
2
3
4
ADJ/GND
ADJ/GND
OUT
OUT
IN
IN
OUT1
OUT1
R126
10
R138
33
TP1
+ CE14
10uF/6.3v
R43
100K
RN1
33x4
12
34
56
78
D2
3
CB47
100nF
R116
27K
D3
R139
NC
MK1
C23
100p
R149 10K
C11
22pF
R90
NC
R166
100
R118
33
CB5
0.1uF
R16
33
C22
20p
R63
33
D50IN4001/DIP
1
2
R3
7
3
3
R85
33
R9
4
1
5
K
L7
FB/600
Y1
12MHz
D49
MM4148
2
1
R5
7
1
0
0
L3
FB/600
L13
FB/600
U1
TDA9950TT/C3
TDA9950TT-TSSOP20
1
2
3
4
6
7
8
9
10
15
13
16
17
18
19
20
11
12
14
5
CEC_POL
CEC_POL
NT
NT
CEC_OUT
CEC_OUT
RST
RST
KTAL1
KTAL1
KTAL2
KTAL2
CEC_IN
CEC_IN
SDA
SDA
SCL
SCL
VDD
VDD
RSVD4
RSVD4
RSVD6
RSVD6
RSVD7
RSVD7
ONT_POL
ONT_POL
A1
A1
A0
A0
RSVD2
RSVD2
RSVD3
RSVD3
RSVD5
RSVD5
VSS
VSS
R127
NC
P1
HDMI TYPE-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
22
21
20
23
C19
102PF
R153
10K
R39
10
R
134
10K
R83
33
CB6
0.1uF
R44
0
R11
0
D2
7
J5
CON2.0-8
1
2
3
4
5
6
7
8
Q4
CES2307
R
154
0
L12
FB/600
R87
1.8K
R5
8
1
0
0
R1
5
1
3
3
U7
P
C
A
9
536D
1
2
3
4
5
6
7
8
I_00
I_00
I_01
I_01
I_02
I_02
GN
GND
I_03
I_03
SCL
SCL
SDA
SDA
VCC
VCC
D7
R13
0
TP5
C3
22pF
R73
33
+
CE15
10uF/6.3v
J2
RCA+SPDIF IN
3
1
2
6
7
8
9
R99
0/2K
+
CE5
10uF/16V
R1
3
2
1
0
K
R81
33
+ CE7
10uF/6.3v
+ CE1
10uF/6.3v
R146
NC/0
R20
0
TP9
C13
10PF
C9
27pF
C5
220PF
L8
FB/600
CB35
0.1uF
R14
NC
CB39
0.1u
D6
CB33
0.1uF
R1
3
1
1
0
R150
22K
R9
3
2
.2
K
CB30
0.1uF
TP4
CB42
0.1uF
CB27
0.1uF
R72
10K
D2
8
MK4
D3
0
R1
1
3
2
K
R145
NC/0
L14
FB/600
R22
0
CB40
0.1uF
R114
33
CB16
0.1uF
R
161
47K
L4
FB/600
R12
NC
D46
1N4148
12
R105
33
Q2
2N3904
2
13
CB1
0.1u
C24
105
D4
R102
NC
TP8
R28
NC
L9
FB/600
TP10
R70
220 1%
Y3
12MHz
R141
33
CB10
0.1uF
C17
102PF
CB49
104
TP7
C6
220PF
C18
102PF
R6
4
7
K
L5
FB/600
D2
9
R1
0
7
1
0
K
C26
10PF
R4
NC
R65
0
R164
100
CB13
0.1uF
R74
33
CB31
0.1uF
R62
NC
R155
10K
R1
5
2
3
3
D3
4
C2
27pF
R42
10
R69
390 1%
R0603B
R68
10
R3
6
3
3
MK3
C14
10PF
C15
5PF
R32
47K
R1
0
9
1
0
K
+ CE9
100uF/6.3v
R98
33
R125
NC
R1
5
7
4
7
K
R1
2
9
2
K
CB38
0.1uF
R82
10
R88
1.8K
CB48
104
R67
750 1%
R0603B
R96
15K
C8
27pF
L1
FB
Q3
2N3904
2
13
RN5
33x4
12
34
56
78
R136 30K
CB3
0.1uF
R59
10
+EC1
47UF/16v
CB18
0.1uF
R1
NC
R100
33
D3
8
R
160
4K
7
R115
33
C7
0.01u
R5
6
1
0
0
D3
5
CB22
0.1uF
CB19
0.1uF
CB24
0.1uF
R80
33
R45
NC
TP6
R1
0
8
1
0
K
R167
100
R1
3
3
1
0
K
R8
33
+ CE6
220uF/6.3v
+
CE12
220uF/6.3v
CB26
0.1uF
R71
390 1%
CB20
0.1uF
R1
1
1
NC/2
K
CB21
0.1uF
U9
74HC4052PW
7
11
15
14
12
3
1
2
9
10
4
16
8
5
13
6
VEE
VEE
Y3A
Y3A
Y2A
Y2A
Y1A
Y1A
Y0A
Y0A
DB
DB
Y0B
Y0B
Y2B
Y2B
A1
A1
A0
A0
Y3B
Y3B
VCV
C
C
G
N
D
Y1B
Y1B
DA
DA
EN
EN
CB45
0.1uF
D2
2
D3
3
R158
100
J1
CON2.0-6
1
2
3
4
5
6
R147
47K
R17
0
D2
1
U3
TDA9984AHW/15/C1
TDA9984AHW-HTQFP80
1
2
3
4
5
6
7
8
9
10
15
13
16
17
18
19
20
21
22
23
30
31
32
33
34
35
36
37
38
39
43
44
45
46
47
48
49
50
51
52
11
24
29
42
12
14
25
26
28
27
41
40
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
H
S
V
S
V
p
p
APA
P
7
APA
P
6
APA
P
5
APA
P
4
APA
P
3
APA
P
2
APA
P
1
V
sss
s
c
V
ddd
d
d
V
ddd
d
c
ININ
T
HPH
P
D
DDCD
D
C
_
SDS
D
A
DDCD
D
C
_
SCS
C
L
TM
TM
Vssa
Vssa
Vdda
Vdda
TX0+
TX0+
Vssh
Vssh
TX1-
TX1-
TX1+
TX1+
Vddh
Vddh
TX2-
TX2-
TX2+
TX2+
Vssh
Vssh
Vddha
Vddha
Vssa
Vssa
I2
C
_
SCS
C
L
I2
C
_
SDS
D
A
V
ddd
d
c
V
sss
s
a
V
sss
s
d
V
ddd
d
d
VPV
P
C
7
VPV
P
C
6
VPV
P
C
5
VPV
P
C
4
APA
P
0
EXT_SWING
EXT_SWING
TX0-
TX0-
RSR
S
T
_
N
ACA
C
L
K
V
sss
s
d
Vssh
Vssh
TXC-
TXC-
Vddh
Vddh
TXC+
TXC+
A
0
A1
A1
VPV
P
C
3
VPV
P
C
2
VPV
P
C
1
VPV
P
C
0
VPBV
P
B
7
VPBV
P
B
6
V
ddd
d
c
V
sss
s
c
VPB5
VPB5
VPB4
VPB4
VPB3
VPB3
VPB2
VPB2
VPB1
VPB1
VCLK
VCLK
VPB0
VPB0
VPA7
VPA7
VPA6
VPA6
VPA5
VPA5
VDDD
VDDD
VSSD
VSSD
VSSC
VSSC
VDDC
VDDC
VPA4
VPA4
VPA3
VPA3
VPA2
VPA2
VPA1
VPA1
VPA0
VPA0
DE/FREF
DE/FREF
R1
2
3
NC
CB14
0.1uF
U8
AT24C02N-10SU-2.7
2
3
4
5
6
8
1
7
A1
A1
A2
A2
GN
GND
SDA
SDA
SCL
SCL
VCC
VCC
A0
A0
WP
WP
R121
NC
R61
33
D1
7
D51 IN4001/DIP
1
2
D45
1N4148
12
R1
1
2
2
K
CB46
0.1uF
CB34
0.1uF
R86
0
R84
NC
D47
MM4148
2
1
CB8
0.1uF
D2
0
D8
CB43
0.1uF
D2
5
RN4
33x4
12
34
56
78
CB4
0.1uF
J4
CON2.0-8AW
1
2
3
4
5
6
7
8
R76
0
R1
5
6
4
K
7
+ CE3
10uF/6.3v
+ CE11
10uF/6.3v
RN2
33x4
12
34
56
78
C25
0.1uF
CB15
0.1uF
R3
12K
R47
220
R1
2
8
2
K
P4
HDMI TYPE-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
22
21
20
23
U2 TDA19977AHV
TDA19977AHV-HLQFP144
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
24
25
26
27
28
29
30
31
32
33
35
36
37
38
39
40
41
42
43
44
11
22
23
34
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
VSSC
VSSC
PD
PD
VDDH3V3
VDDH3V3
NC
NC
NC
NC
VSSH
VSSH
RXCC-
RXCC-
RXCC+
RXCC+
VDDH3V3
VDDH3V3
NC
NC
VSSH
VSSH
RXC0-
RXC0-
RXC0+
RXC0+
VDDH1V8
VDDH1V8
NC
NC
NC
NC
VSSH
VSSH
RXC1-
RXC1-
RXC1+
RXC1+
VDDH3V3
VDDH3V3
VSSH
VSSH
RXC2-
RXC2-
RXC2+
RXC2+
VPP
VPP
VDDC1V8
VDDC1V8
VDDO3V3
VDDO3V3
VCLK
VCLK
VSSO
VSSO
CS/FREF
CS/FREF
VS/VREF
VS/VREF
DE
DE
VP0
VP0
VSSV
S
S
C
VPV
P
1
VPV
P
2
VPV
P
3
VDDOV
D
D
O
3
V
3
VDDCV
D
D
C
1
V
8
VSSV
S
S
O
VPV
P
4
NC
NC
NC
NC
NC
NC
HS/HREF
HS/HREF
VPV
P
5
VPV
P
6
VPV
P
7
VPV
P
8
VPV
P
9
VPV
P
1
0
VPV
P
1
1
VDDOV
D
D
O
3
V
3
VPV
P
1
2
VSSV
S
S
C
VPV
P
1
3
VPV
P
1
4
VPV
P
1
5
VPV
P
1
6
VPV
P
1
7
VPV
P
1
8
VPV
P
1
9
VPV
P
2
0
VDDOV
D
D
O
3
V
3
VDDCV
D
D
C
1
V
8
VSSV
S
S
O
VPV
P
2
1
VPV
P
2
2
VPV
P
2
3
VPV
P
2
4
VPV
P
2
5
VPV
P
2
6
VPV
P
2
7
VSSC
VSSC
VDDO3V3
VDDO3V3
VP28
VP28
VP29
VP29
VSSO
VSSO
ACLK
ACLK
AP0
AP0
AP1
AP1
AP2
AP2
AP3
AP3
AP4/WS
AP4/WS
VDDO3V3
VDDO3V3
AP5/SYSCLK
AP5/SYSCLK
VSSO
VSSO
VDDH3V3
VDDH3V3
VDDH3V3
VDDH3V3
VSSH
VSSH
VDDH1V8
VDDH1V8
VSSH
VSSH
VDDC1V8
VDDC1V8
XTALOUT
XTALOUT
XTALIN/MCLK
XTALIN/MCLK
VDDI3V3
VDDI3V3
VA_IN
VA_IN
SDA
SDA
SCL
SCL
DDC_DATA_A
DDC_DATA_A
DDC_CLOCK_A
DDC_CLOCK_A
DDC_DATA_B
DDC_DATA_B
DDC_CLOCK_B
DDC_CLOCK_B
TEST0
TEST0
VDDH3V3
VDDH3V3
VSSH
VSSH
RRX1
RRX1
VDDC1V8
VDDC1V8
VDDH1V8
VDDH1V8
VSSV
S
S
C
A
0
VDDHV
D
D
H
3
V
3
RXBCR
X
B
C
+
RXBCR
X
B
C
-
VSSV
S
S
H
RXACR
X
A
C
-
RXACR
X
A
C
+
VDDHV
D
D
H
3
V
3
RXBR
X
B
0
+
RXBR
X
B
0
-
VSSV
S
S
H
RXAR
X
A
0
-
RXAR
X
A
0
+
VDDHV
D
D
H
1
V
8
RXBR
X
B
1
+
RXBR
X
B
1
-
VSSV
S
S
H
RXAR
X
A
1
-
RXAR
X
A
1
+
VDDHV
D
D
H
3
V
3
RXBR
X
B
2
+
RXBR
X
B
2
-
VSSV
S
S
H
RXAR
X
A
2
-
RXAR
X
A
2
+
VSSV
S
S
H
VDDCV
D
D
C
1
V
8
VDDCV
D
D
C
1
V
8
DDCD
D
C
_
DAD
A
T
A
_
C
DDCD
D
C
_
C
L
OCKO
C
K
_
C
TESTT
E
S
T
1
TESTT
E
S
T
2
VDDIV
D
D
I3
V
3
RRR
R
X
2
VDDHV
D
D
H
1
V
8
R1
2
4
NC
D3
1
+
CE13
22u/16V
C12
33PF
U6 CX1084-3.3
TO-252-3/SMD
1
3
2
ADA
D
J
IN
OUT1
OUT1
D44
IN4148
1
2
D2
4
CB28
0.1uF
Y2
27MHz
R1
1
0
NC/2
K
CB11
0.1uF
R1
3
7
NC
D3
7
R95
10
+ CE4
10uF/6.3v
U5
P89LPC2132
LPC2132FBD64-LQFP64
1
2
3
4
5
6
7
8
9
10
15
13
16
17
18
19
20
21
22
23
30
31
32
33
34
35
36
37
38
39
43
44
45
46
47
48
49
50
51
52
11
24
29
42
12
14
25
26
28
27
41
40
53
54
55
56
57
58
59
60
61
62
63
64
P0_21/PWM5
P0_21/PWM5
P0_22/AD1.7
P0_22/AD1.7
RTXC1
RTXC1
P1_19
P1_19
RTXC2
RTXC2
VSS1
VSS1
VDDA1
VDDA1
P1_18
P1_18
P0_25/AD0.4
P0_25/AD0.4
DP
DP
P0_30/AD0.3
P0_30/AD0.3
P0_28/AD0.1
P0_28/AD0.1
P1_16
P1_16
P
0_30
_
3
1
VSSV
S
S
2
TXT
X
D
0
N
T
RSR
S
T
RXDR
X
D
0
M
CUC
U
_
SCS
C
L
VDDV
D
D
2
P
0_0
_
6
SSCES
S
C
E
L
P
1_21
_
2
4
TXD1
TXD1
RXD1
RXD1
P0_8
P0_8
P_23
P_23
P0_11
P0_11
P0_12
P0_12
P0_13
P0_13
VDD4
VDD4
P1_21
P1_21
P0_15
P0_15
P0_16
P0_16
P0_17
P0_17
P1_20
P1_20
VBAV
B
A
T
VSSV
S
S
5
VDDV
D
D
5
T
M
S
DN
DN
R
T
C
K
P
0_0
_
5
VSS4
VSS4
P1_17/
P1_17/
P0_29/AD0.2
P0_29/AD0.2
VSSV
S
S
3
M
CUC
U
_
SDS
D
A
P
1_21
_
2
5
M
T
K
_
C
K
P0_14
P0_14
PP1_2
PP1_2
P
0_10
_
1
8
P
0_10
_
1
9
P
0_20
_
2
0
T
C
K
NTESN
T
E
S
T
P
0_20
_
2
3
VSSV
S
S
A
T
D
1
XTAX
T
A
L
2
XTAX
T
A
L
1
VREV
R
E
F
T
D
0
R5
5
1
0
0
CB37
0.1uF
D5
R26
18K
R25
5.1K
C1
27pF
R143
47K
R
135
10K
Y4
32.768KHz
R3
8
3
3
CB44
0.1uF
D48
MM4148
2
1
R117
33
CB12
0.1uF
Q1
2N3904
2
13
+ CE10
100uF/6.3v
L2
FB
CB29
0.1uF
R1
0
6
1
0
K
R34
0
D3
6
D1
8
+ CE8
100uF/6.3v
C10
22pF
CB36
0.1uF
RN6
33x4
12
34
56
78
U10
AT24C02N-10SU-2.7
2
3
4
5
6
8
1
7
A1
A1
A2
A2
GN
GND
SDA
SDA
SCL
SCL
VCC
VCC
A0
A0
WP
WP
R163
100
R159
100
CB23
0.1uF
R103
47K
C20
102PF
D2
C4
22pF
R2
12K 1%
TP2
TP3
RN3
33x4
12
34
56
78
CB7
0.1uF
R9
33
R75
33
D1
R162
100
R77
10
L11
FB/600
D3
2
C21
0.01u
CB9
0.1uF
D2
6
L10
FB/600
CB17
0.1uF
CB32
0.1uF
7-1
7-1
HDMI Board -- Circuit Diagram
