Kivi 32HK30G, Service Manual

Page: 27 / 53

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
DIF IN&OUT
kick back filter
改善
ATV
水波纹！
TUNER POWER
L17=GZ1005D102CTF, L19=27nH,C5=470pF, L25=6.8nH, C8=L23=C6=NC, L22=0R
L17=270nH, L19=39nH,C5=470pF, L25=0R, C8=L23=C6=NC, L22=0R
L17=L23=L22=270nH, L19=39nH,C5=100pF, L25=6n8H, C8=C6=120pF
IFAGC TBD table
Open drain R103=100R
Push Pull R103=10KR
IFAGC Circuit
0805C_ST
Close R842
(1) +VDD3V input voltage tolerance must be under +-5%
(2) +VDD3V input ripple must be under 30mVpp
(3) Using LDO for +VDD3V is recommended
Addr 0xF6
Application
DTMB (S11<-8)
ATV only, ATSC (S11>-8)
Hybrid ( with S1 filter for EN55020)
- filter noise from demod side
C5
L19 L17
Recommend to reserve R106, R110, R109
to filter noise from demod side.
R103
L22
C6
L23
C8
L25
C106
220mA
实测
:3.33V
Vpp=44.4mV
输出电流
:237mA
冲击电流
:247mA
IF trace shielding by GND
IF Interface Filter
75 ohm line
Bead (L21):
1k@100M &
400ohm@400M,300mA
I2C Interface Filter
- R103 and R106 are related to Demod side's
IFAGC design. Sometime need to fine tune
for different Demod.
- Following IFAGC TBD table is common
suggestion.
DTMB
DIFP
DIFM
TUN_IF- TUN_IF-
VOP#
VON#
VOP#
VON#
VAGC
VAGC
VDD3V
VDD3V
VDD3V
VOP
VON
VON
VOP
VDD3V
RF_IN
+3.3V_Tuner
+5V_Normal
+3.3V_Tuner
+3.3V_Tuner +3.3V_Normal
DIFM
DIFP
IF_AGC 2
T_SCL 11
T_SDA 11
I2C-SCL 3,4,6
I2C-SDA 3,4,6 T_SDA 11
T_SCL 11
Title
Size Document Number Rev
Date: Sheet of
Tuner
V1.0.1
MSD6A348AXO
D
2 16 Wednesday, June 14, 2017
Title
Size Document Number Rev
Date: Sheet of
Tuner
V1.0.1
MSD6A348AXO
D
2 16 Wednesday, June 14, 2017
Title
Size Document Number Rev
Date: Sheet of
Tuner
V1.0.1
MSD6A348AXO
D
2 16 Wednesday, June 14, 2017
Title
Size Document Number Rev
Date: Sheet of
MSA6380-YL01-01 A
Silicon Tuner
ShenZhen MTC Co., Ltd.
31-32F XINGHESHIJI BLDG. 3069 CAITIAN ROAD FUTIAN DISTRICT SHENZHEN
D
11 13 Wednesday, June 14, 2017
Title
Size Document Number Rev
Date: Sheet of
MSA6380-YL01-01 A
Silicon Tuner
ShenZhen MTC Co., Ltd.
31-32F XINGHESHIJI BLDG. 3069 CAITIAN ROAD FUTIAN DISTRICT SHENZHEN
D
11 13 Wednesday, June 14, 2017
Title
Size Document Number Rev
Date: Sheet of
MSA6380-YL01-01 A
Silicon Tuner
ShenZhen MTC Co., Ltd.
31-32F XINGHESHIJI BLDG. 3069 CAITIAN ROAD FUTIAN DISTRICT SHENZHEN
D
11 13 Wednesday, June 14, 2017
CT23
0.1uF
LT6
0R
CT27
NC/20pF
R1 0R
LT8 180nH
RT1 220R
C2
NC/10pF
CT30
10uF/6.3V
CT3
33pF
LT10 0R/330nH
LT1
6.8nH
CT24 0.1uF
C
T
6
22nF
C1
NC/10pF
CT21
330pF
CT22
6800pF
LT2 0R
LT11 0R/330nH
C87
10uF/6.3V
CC0603
LT
4
G
Z
1005D
102C
T
F
JT1
RFIN
1
2 3 4 5 6
7
8
9
10
CT25
10uF
R2 0R
CT26
NC/20pF
DT1
BAV99
E B
C
CT9 1000pF
LT12
NC/220
Ω
-2A
LT9 220
Ω
-500mA
LT7 GZ1005D102CTF
LT5
GZ1005D102CTF
XT1
24MHz-11P-20PPM/DIP
1
2
LT
3
68nH
UT1
R842
RF_bias
2
TF1
3
TF2
4
DECT1
5
SCL
6
SDA
7
AVDD
8
AVDD
18
VOP
17
VON
16
VAGC
15
DVSS
10
CP
9
RFIN
1
AVDD
24
TFH
23
TFL
22 21
NC
DET
2
20
DET
3
19
GND
25
DVDD
11
XTAL
_
I
12
VAGC2
14
XTAL_O
13
CT10
nc
RT4 NC
RT7
NC
CT18 0.1uF
C85
0.1uF
CT11
10uF
C
T
7
22nF
RT2 220R
C
T
5
0.
1uF
CT1 NC
CT20
0.1uF
RT8 0R
RT5
1K8
ADJ OUT
IN
U8
AMS1117L-3.3
3 2 1
4
CT8
1.8P
CT28 0.1uF
CT4
0.1uF
CT2
33pF
C86
0.1uF
CT19 47nF
RT3 100R
RT6 0R