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Silicon Tuner
TUNER
AGND
TU101
300mA
1
ANT
2
Tuner3.3V
3.3V
3
SCL_CAN
SCL
4
SDA_CAN
SDA
5
C131
GND
6
1uF 10V
Xout
7
AIF+
IF_N
8
AIF-
IF_P
9
IF_AGC
IF_AGC
C133
1N 50V
AGND
AGND
BPF_IN
L102
AIF+
1UH
L101
AIF-
1UH
L need Q>15
IF_AGC Control Circuit
Close to Main chip
3.3V_TUNER
R144
10K
TAGC
R146
2
TAGC
IF_AGC from
IC
0R05 OHM
C140
22NF 25V
AGND
300mA
DGND
+5V_Normal
3
C127
3.3V_TUNER
10uF 10V
C128
100N 16V
C132
1N 50V
DGND
AGND
close Tuner
L103
C134
TUN_IF+
2.2uH
100N 16V
C136
R140
C135
510R
56pF 50V
33PF 50V
C137
L104
TUN_IF-
2.2uH
100N 16V
Close to Tuner
R101
IF_AGC
100R
To tuner
C141
100NF 16V
AGND
IF_AGC trace shielding by GND
1K_100MHz/400_400MHz
Tuner Power
3.3V_TUNER
3.3V_TUNER
U101
FB101
2
1
2
VIN
VOUT
1000OHM
C129
C130
+
2.2UF 16V
100UF 16V
C101
100N 16V
DGND
DGND
DGND
DGND
Close to Main chip
T P V ( Top
絬 隔 瓜 絪 腹
Key Component
Date
47
I2C for Tuner
3.3V_TUNER
R141 4.7K
R142 4.7K
close to main chip
TUNER_SCL
Form main chip
TUNER_SDA
Form main chip
Victory
Electronics
Co . , Ltd. )
OEM MODEL
NA
TPV MODEL
GXXXX-M0A-000-0040
NA
PCB NAME
715GXXXX-M0A-000-0040
07. Tuner
Monday , September 24, 2012
Sheet
7
of
Main Chip <-->
TUN_IF+
2
VIFP
TUN_IF-
2
VIFM
TUN_I2C_SCL
2
TUNER_SCL
TUN_I2C_SDA
2
TUNER_SDA
TP_SYNC[55]
TP_CLK[48]
TP_VALID[51]
TP_DI[54]
IF_CTL[47]
TUNER_SCL
TUNER_SCL
2
TUNER_SDA
TUNER_SDA
2
R143
SCL_CAN
100OHM
C138
NC/100pF 50V
R145
AGND
SDA_CAN
100OHM
C139
NC/100pF 50V
AGND
Size
B
Rev
A
<称爹>
称 爹
9
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