10.
Circuit Diagrams and PWB Layouts
10-1-15
DVB-T/C/T2 Tuner
19230_514_120207.eps
120207
DVB-T/C/T2 Tuner
B15
B15
2011-12-19
2
715G5155
Tuner
GPIO 7
T2_AINP
T2_AINN
LNA_ON/OFF
TU_FAT_IN2-
TU_
T/C/T2_TUNER_SDA
MT5135AD-
M
T/C/T2_TUNER_SCL
IF_AGC
RF_AGC_H
RF_AGC_Control
RF_AGC_T
T2_RFAGC
T2_IFAGC
R1193
0R05 1/16W
(0mVr)
AGC:OFF(analog), ON(digital)
R1198
51R 1%
C1162
47nF 16V
R1244
0R05 1/10W
VOUT
1
GN
D
2
FLAG
3
ON/ON
4
VIN
5
U1000
NC/G552B1TA1U
C1161
47nF 16V
+B activ e ANT
1
+B
2
RF-AGC Monitor
3
NC
5
BT Monitor
6
SCL
9
SDA
10
IF Monitor
11
IF AGC
12
IFD-out1
13
IFD_out2
14
TH1
15
TH2
16
TH
3
17
TH4
1
8
TU1003
ENV57U04D8F
C1513
100N 16V
R1201
NC/150R 1/16W 1%
R1188
0R05 1/10W
C1163
470nF 16V
R1182
100R 1/10W 5%
L1001
NC/0.22uH 10%
L1500
NC/0.33uH 10%
R1185
10K 1/16W 5%
C1159
100N 50V
C1165
NC/220pF 50V
C1174
NC/10N 50V
R1192
51R 1%
R1184
10K 1/16W 5%
R1199
NC/49.9 OHM 1/16W 1%
L1008
NC/0.12UH
R1222
0R05 1/10W
R1202
NC/49.9 OHM 1/16W 1%
C1175
NC/10N 50V
C1203
33pF 50V
C1507
100N 16V
1
2
FB1034
120R/600mA
R1183
100R 1/10W 5%
Q1501
2N7002
C1157
39P 50V
R1187
10K 1/16W 5%
R1506
22R 1/16W 5%
R1203
NC/0R05 1/16W
Q1500
2N7002
R1181
4K7 1/10W 5%
1
2
t
TH1300
NC/PTCR
C1167
10N 50V
C1171
10N 50V
R1223
0R05 1/10W
C1160
10UF 10V
R1528
NC/270R 1/16W 5%
C1172
NC/220pF 50V
R1505
33R 1/16W 5%
C1173
NC/5P6 50V
R1245
0R05 1/10W
R1502
NC/0R05 1/16W
R1191
0R05 1/16W
R1507
33R 1/16W 5%
C1158
39P 50V
C1170
10N 50V
R
1215
N
C
/4K7 1/
16W
5
%
R1200
NC/0R05 1/16W
R1501
NC/0R05 1/16W
C1164
NC/5P6 50V
R1508
22R 1/16W 5%
L1006
NC/0.12UH
R1254
NC/0R05 1/16W
C1168
NC/220pF 50V
R1197
0R05 1/16W
C1169
NC/220pF 50V
C1186
NC/1NF 50V
R1220
NC/0R05 1/16W
C1188
NC/100N16V
R1194
NC/0R05 1/16W
C1509
NC/56pF 50V
1
2
FB1037
NC/120R/3000mA
R1180
4K7 1/10W 5%
C1166
10N 50V
C1511
100N 16V
1
2
3
Q1001
NC/BC857C
C1
1
8
9
N
C
/100N
16V
C1187
NC/100N16V
C1508
100N 16V
R1186
NC/100K 1/16W 5%
+5V_TUNER
DVDD3V3
DVDD3V3
+5V_TUNER
+5V_TUNER
T2_AINP
17
LNA_ON/OFF 13
T/C/T2_TUNER_SCL
15,17
T/C/T2_TUNER_SDA
15,17
T2_AINN
17
GND
2,3,4,5,6,7,8,9,10,11,12,13,14,15,17
RF_AGC_H 8
IF_AGC
8
RF_AGC_T 15
M 15
MT5135AD- 15
T2_IFAGC
17
TU_FAT_IN2- 8
TU_ 8
RF_AGC_Control 13
T2_RFAGC
17
BPF need NC for SAWless tuner
R1195
0R05 1/16W
C1202
33pF 50V
+5V_VCC
TT_SDA
IF_AGCT
I2C
From MT5366
MT5135AD-
M
DIF1_OUT1
TU_FAT_IN2-
TU_
RF_AGC_H
From MT5135
TUNER_DATA
+5V_VCC
Tuner
DIF
RF_AGC_T
L1007
NC/0.22UH
LNA(LG tuner)
To MT5366
To MT5135
RF_AGC_T
DVB-T/C/T2 TUNER CIRCUIT
DIF1_OUT1
DIF1_OUT2
IF BPF for T2
DIF1_OUT2
TUN_INP
TUN_INN
T2_AINN
T2_AINP
+5V_ANT
DIF1_OUT2
IF_AGCT
DIF1_OUT1
RF_AGC_Control
FROM MN88472 or MT5135
FROM MN88472 or MT5135
T/C/T2_TUNER_SCL
TUNER I2C level shift
TUNER_CLK
TUNER_DATA
T/C/T2_TUNER_SDA
IF_AGC
Current Limit Switch
GND
TT_SDA
TT_SCL
TUNER_CLK
LNA_ON/OFF
From MT5366
RF_AGC_S
T2_RFAGC
From MN88472
RF AGC
AGC:ON (analog),OFF(digital)
LNA_CONTROL
+5V_ANT
TT_SCL
NC
GPIO_34
IF AGC (Panasion tuner)
GPIO_6
R1190
100K 1/16W 5%
1
2
3
Q1002
BC857C
T2_IFAGC
RF_AGC_Control
GPIO_6