Sharp LC-37XD1E, Service Manual

Page: 78 / 198

LC-37XD1E/RU
5 – 24
19. IC202: RH-IXB682WJZZQ
CDFDM DEMODURATOR
Pin No. Pin Name I/O Pin Function
12 RESET 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 D/P 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.