17
CIRCUIT OPERATING MANUAL
4. Front-End Interface
(1) Tuner Module
Tuner and QPSK Demodulator are combined into one Module. Following feature shows the Block Diagram.
RF
I
N
P
U
T
A
95
0 ~
21
50
VD
D
(+
3
.3V)
N
R
E
S
S
D
A
S
C
L
B3
(5
V
)
AM
P
RF
A
T
T
BPF
AM
P
Q
P
SK
Li
nk
I
C
ST
V0
2
9
9
B
SD
AT
Lo
op
Th
ro
ug
h
Ou
tp
u
t
95
0 ~
21
50
B2
(5
V
)
Z
E
R
O
IC
wi
th
PL
L
TU
N
(3
0V
)
B1
(5
V
)
SC
LT
D
A
T
A
[0
:7
]
ST
R
O
U
T
E
RRO
R
CL
K
_
O
U
T
D/
P
AU
X
_
C
L
K
BPF
LN
B
Po
w
e
r B
LN
B
Po
w
e
r A
T/
M
A
/S
LP
F
F
22/
D
iS
E
qC
B4
(5
V
)
I
Q
AG
C
CI
RCU
IT
Feature 10. Tuner Modul Block
Summary of Contents for DSD-9251MA
Page 17: ...16 CIRCUIT OPERATING MANUAL Feature 9 EMI Interface Timing...
Page 40: ...39 39 SCHEMATIC DIAGRAM...
Page 41: ...40 40 SCHEMATIC DIAGRAM...
Page 42: ...41 41 SCHEMATIC DIAGRAM...
Page 43: ...42 42 SCHEMATIC DIAGRAM...
Page 44: ...43 43 SCHEMATIC DIAGRAM...
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Page 46: ...45 45 SCHEMATIC DIAGRAM...
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Page 48: ...47 47 SCHEMATIC DIAGRAM...
Page 49: ...48 48 SCHEMATIC DIAGRAM...
Page 50: ...49 49 SCHEMATIC DIAGRAM...
Page 51: ...50 ELECTRICAL PARTS LIST 50...
Page 52: ...51 51 EXPLODED VIEW...
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