Tuner I2C
IF AGC
Each of these Vcc pins of TDA18273 is decoupled by a single capacitor (pin 1, 16, 27, 35)
General Vcc decoupling
为了方便排版,故意把该信号的
LVDS
的正负对换。
332mA MAX:360MA
靠近
silicon tuner
摆放
IF-IN+
IF-IN-
DIF_P_F0
1V2
DIF_N_F0
TU_SDA
RFIN
TU_SCL
IF-IN-
IF-IN+
IF_AGC0
TU_SCL
TU_SDA
SDA SCL
GND
GND
GND
GND
3.3V_Tun
3.3V_Tun
3.3V_Tun
3.3V_Tun
3.3V_Tun
3.3V_Tun
3.3V_Tun
3.3V_Tun
3.3V_Tun
3.3V_Tun
3.3V_Tun
GND
V_3.3V
3.3V_Tun
3.3V_Tun
GND
V_3.3V_AUX
GND
GND
AI2C_SD
A
4
DMIFGAI
N
5
DIF_
P
5
DIF_
N
5
AI2C_SC
L
4
C157
2.7nF 50V 10%
C157
2.7nF 50V 10%
L11
8.2nH
_110mA
_+/
-0.1nH
L11
8.2nH
_110mA
_+/
-0.1nH
C160
0.1uF(X7R)
C160
0.1uF(X7R)
+
EC12 220uF/16V
+
EC12 220uF/16V
R148
4.7K
R148
4.7K
D2
1N4148
D2
1N4148
2
1
C26
2
1uF_0402
C26
2
1uF_0402
C163
12pF
C163
12pF
C146
120pF 100V/5%
C146
120pF 100V/5%
C13
5
220nF
10V
10
%
C13
5
220nF
10V
10
%
C137
0.1uF(X7R)
C137
0.1uF(X7R)
C149
33pF
C149
33pF
C139 1uF_0402
C139 1uF_0402
L10
100nH
_150mA
_+/
-5%
L10
100nH
_150mA
_+/
-5%
R149
4.7K
R149
4.7K
J5
RFIN
J5
RFIN
1
2
3
4
5
6
7
7
8
8
9
10
R146 0R-0402
R146 0R-0402
C145 NC/47pF_0402
C145 NC/47pF_0402
C150
33pF
C150
33pF
U10
TDA18273
U10
TDA18273
GNDSYNT
18
VTUN
19
CP
20
XTOUT1
21
XTOUT2
22
CAP
REGV
CO
17
IFP
25
GNDIF
26
V_I
F_AGC
28
VCCIF
27
IRQ
30
V_Sync
29
GNDDIG3
23
IFn
24
VH
FSupply
31
VHFL
32
VCCRF
1
RFin
2
NC
3
NC
4
GNDDIG0
5
AS_XTSel
6
GNDDIG1
7
Test1
8
Test2
9
GNDDIG2
10
SCL
11
Test1
13
Xta
l
14
SDA
12
Xta
lno
t
15
VCCSYN
16
Cap
RFA
GC
40
RFAG
C_S
ense
39
UHFH
38
UHFSupp
ly
37
UHFL
36
VCCRF
Filt
er
35
VHFH
34
VH
FSens
33
GN
D
41
R147 1.5K
R147 1.5K
R167
NC
R167
NC
L12
330nH
140m
A 5
%
L12
330nH
140m
A 5
%
C138
0.1uF(X7R)
C138
0.1uF(X7R)
C253
1uF_0402
C253
1uF_0402
L13
220nH
120m
A 5
%
L13
220nH
120m
A 5
%
C15
2
47nF
C15
2
47nF
C147
150pF 50V 5%
C147
150pF 50V 5%
C162
47nF
C162
47nF
C144 10uF(X5R)
C144 10uF(X5R)
R14
0
1.2K
R14
0
1.2K
C148
6.8nF 50V 10%
C148
6.8nF 50V 10%
C154
18pF 50V 5%
C154
18pF 50V 5%
R15
4
1K
R15
4
1K
C153
18pF 50V 5%
C153
18pF 50V 5%
C161
1000PF/50V
C161
1000PF/50V
C155
100nF16V 10%
C155
100nF16V 10%
Y2
NX3225GA/16MHz
Y2
NX3225GA/16MHz
R144
0R-0402
R144
0R-0402
C143
NC/47pF_0402
C143
NC/47pF_0402
C14
2
82pF
50V
5%
C14
2
82pF
50V
5%
FB10
56
Ω
-4A-1206
FB10
56
Ω
-4A-1206
R14
2
1K
R14
2
1K
L8
2.2nH
1000m
A +
/- 0.2n
H
L8
2.2nH
1000m
A +
/- 0.2n
H
C165
47nF
C165
47nF
R15
1
68R
R15
1
68R
R152 430 1%
R152 430 1%
C140
0.1uF(X7R)
C140
0.1uF(X7R)
C132 1uF_0402
C132 1uF_0402
L9
2.4nH
_220mA
_+/
-0.05nH
L9
2.4nH
_220mA
_+/
-0.05nH
C141
120pF 100V/5%
C141
120pF 100V/5%
C13
3
0.1uF(X7R)
C13
3
0.1uF(X7R)
C13
6
100nf 16
V 5
%
C13
6
100nf 16
V 5
%
C164
47nF
C164
47nF
C134
1uF_0402
C134
1uF_0402
C15
6
6.8nF
50V
+/
-10%
C15
6
6.8nF
50V
+/
-10%
R145
0R-0402
R145
0R-0402
D3 NC/BAV99W
D3 NC/BAV99W
C158 220nF 10V +/-10%
C158 220nF 10V +/-10%
R15
0
68R
R15
0
68R
R141
1K
R141
1K
C15
1
10uF(
X5R)
C15
1
10uF(
X5R)
R14
3
1K
R14
3
1K