Read Sharp LC-46XD1E (serv.man7) Service Manual online
LC-46/52XD1E-RU
7 – 24
22. IC202: RH-IXB682WJZZQ
CDFDM DEMODURATOR
Pin No.
Pin Name
I/O
Pin Function
12
I
Hardware reset,active low.
62
XTALI
I
Crystal oscillator input/external clock(1.8V).
63
XTALO
O
Crystal oscillator output.
61
VCCXTAL1.8
-
Analog oscillator supply(1.8V)
64
GNDXTAL
-
Analog oscilltor ground.
2
DVCCA1.8
-
Analog part digital supply(1.8V)
5
REFM
I
Internal negative reference.
6
REFP
I
Internal positive reference.
3
VCCA1.8
-
Analog supply(1.8V).
9
INM
I
Negative analog input.
10
INP
I
Positive analog input.
4,11
GNDA
-
Analog ground.
1
DGNDA
-
Analog ground.
7
VR
I
Reference.
8
VCCA3.3
-
Analog supply(3.3V)
21
SDA
I/O
Serial data(open drain)
20
SCL
I
Serial clock(open drain)
19
SDAT
I/O
SDA tuner(open drain)
18
SCLT
I
25,26,27,29,31,32,33,34
D7/0
O
Serial D7,MPEG data.
36
CLK_OUT
O
MPEG byte or bit clock.
23
STR_OUT
O
MPEG first byte sync.
38
O
MPEG data valid/parity.
40
ERROR
O
MPEG packet error.
51
HFECO
O
Hierarchical FEC output bit 0.
50
CCLK/HFC1
O
Hierarchical FEC output bit 1 or clock for constellation display.
49
CDATA/HFC2
O
Hierarchical FEC output bit 2 or data for constellation display.
48
CIQ/HFEC3
O
Hierarchical FEC output bit 3 or IQ validation for constellation display.
16
AGC1
I/O
RF AGC control
14
AGC2
I/O
IF AGC control
17,60
TEST
-
Reserved test mode,must be ground.
58
IP0
I
General-purpose input port0 and ADC input for RF level monitoring
45
OP0
I/O
General-purpose output port0
43
LOCK/OP1
I/O
General-purpose output port1 or lock indicator.
42
LOCK/OP2
O
general-purpose output port2 or lock indicator.
47
AUX_CLK
I/O
Auxiliary clock.
55
CS0
I
Chip select LSB.
53
CS1
I
Chip select MSB.
13,28,39,57
VDD
-
Digital core supply.
22,35,44,52
VDD_3.3
-
Digital IO supply.
15,24,30,37,41,46,54,56,59
GND
-
1. All input are 3.3V compatible
2. All bidirectional pads 3.3V capable
3. All output are 3.3V capable.
2. All bidirectional pads 3.3V capable
3. All output are 3.3V capable.
RESET
D/P
