Pin Description - Daewoo DTQ-29U1SCV Service Manual

IC DESCRIPTION

2. Pin Description

SYMBOL
VSSP2
VSSC4
VDDC4
VDDA3(3.3V)
VREF_POS_LSL
VREF_NEG_LSL+HPL
VREF_POS_LSR+HPR
VREF_NEG_HPL+HPR
VREF_POS_HPR
XTALIN
XTALOUT
VSSA1
VGUARD/SWIO
DECDIG
VP1
PH2LF
PH1LF
GND1
SECPLL
DECBG
(1)
EWD/AVL
VDRB
VDRA
VIFIN1
STANDARD
VERSION
1 1 128
2 1 127
3 3 126
4 16 125
5 16 124
6 17 123
7 16 122
8 17 121
9 16 120
10 18 119
11 19 118
12 20 117
13 69 116
14 21 115
15 22 114
16 23 113
17 24 112
18 25 111
19 26 110
20 27 109
21 66 108
22 68 107
23 67 106
24 28 105
FACE DO WN
VERSION
90 ground
90 ground
88 digital supply to SDACs (1.8V)
75 supply (3.3 V)
75 positive reference voltage SDAC (3.3 V)
74 negative reference voltage SDAC (0 V)
75 positive reference voltage SDAC (3.3 V)
74 negative reference voltage SDAC (0 V)
75 positive reference voltage SDAC (3.3 V)
73 crystal oscillator input
72 crystal oscillator output
71 ground
22 V-guard input / I/O switch (e.g. 4 mA current
sinking capability for direct drive of LEDs)
70 decoupling digital supply
st
69 1 supply voltage TV-processor (+5 V)
68 phase-2 lter
67 phase-1 lter
66 ground 1 for TV-processor
65 SECAM PLL decoupling
64 bandgap decoupling
25 East-West drive output or AVL capacitor
23 vertical drive B output
24 vertical drive A output
63 IF input 1
-34-
Appendix
DESCRIPTION