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3 7 63 1515 0
IC BLOCK DIAGRAMS AND DESCRIPTIONS
LC74763-9836(On-screen and controller)
CS
SERIAL
SIN
PARALLEL
CONVERSION
SCLK
RST
CTR-A
COMPOSITE
CTR-B
SYNCHRO-
NIZING
SIGNAL
NSDET
CONTROL
SDET
VDD1
VDD2
VSS
SYNCDET
VCOIN
VCOOUT
A F C
FC
CIRCUIT
AMPIN
AMPOUT
PDOUT
TE
L 13942296513
SYSIN
SYNCHRO-
NIZING
SEPARATION
SEPC
No. Symbol
Description
1
VSS
Ground terminal
Crystal oscillator connection terminals for
2
XTALIN1
internal synchronizing signal generator
3
XTALOUT1
4
HSYNCOUT
Horizontal synchronizing signal output terminal
Crystal oscillator connection terminals for.
5
XTALIN2
internal synchronizing signal generator
6
XTALOUT2
7
VSYNCOUT Vertical synchronizing signal output terminal
8
CS
Chip enable input terminal
9
SIN
Serial data input terminal
10 SCLK
Clock input terminal for serial data
11 CTR-A
Video control output terminal
12 CTR-B
Video control output terminal
13 NSDET
Selection pin for PAL or NTSC
14 SDET
Signal detection terminal
15 RST
System reset input terminal
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8 BITS
LATCH
AND
COMMAND
DECODER
HORIZONTAL
VERTICAL
CHARACTER
CHARACTER
SIZE
SIZE
REGISTER
REGISTER
VERTICAL
HORIZONTAL
SIZE
SIZE
COUNTER
COUNTER
SYNCHRO-
NIZING
DISCRIMI-
NATION
COMPOSITE
TIMING
SYNCHRONIZING
SEPARATION
GENERATOR
CIRCUIT
HSYN OUT
VSYN OUT
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2 9
8
HORIZONTAL
VERTICAL
ON/OFF
INDICATION
INDICATION
INVERSION
POSITION
POSITION
CONTROL
REGISTER
REGISTER
REGISTER
HORIZONTAL
VERTICAL
INVERSION
DOT COUNTER
DOT COUNTER
CONTROL CIRCUIT
VERTICAL
HORIZONTAL
INDICATION
INDICATION
POSITION
POSITION
DETECTOR
DETECTOR
LINE
CHARACTER
CONTROL
CONTROL
COUNTER
COUNTER
SYNCHRONIZING
Q Q
SIGNAL
3
6 7
1 3
1 5
GENERATOR
XTAL
XTAL
IN2
IN1
XTAL
XTAL
OUT1
OUT2
No. Symbol
Description
16 CVOUT
Composite video output terminal
17 VDD2
Power supply terminal for composite video signal
18 CVIN
Composite video signal input terminal
19 CVCR
Cromatic signal input terminal
20 SYNCIN
Video signal input terminal for internal synchronizing separation circuit
21 SEPC
Bias output pin for internal synchronizing separation circuit
22 VSS
Ground terminal
23 PDOUT
Power supply output terminal for AFC circuit
Filter connection terminals
24 AMPIN
25 AMPOUT
26 FC
Power supply output terminal
LC resonator connection terminals for VCO
27 VCOIN
28 VCOOUT
29 SYNCDET External synchronizing signal discrimination output terminal
30 VDD1
Power supply terminal
co
.
9 4
2 8
INDICATOR
RAM WRITE
CONTROL
ADDRESS
REGISTER
COUNTER
ON/OFF
CHARACTER OUTPUT CONTROL
BACKGROUND CONTROL
0 5
8
2 9
9 4
2 8
VIDEO OUTPUT CONTROL
CVOUT
CVCR
CVIN
m
DTR-6.4
9 9
INDICATOR
RAM
DECODER
FONT
ROM
SHIFT
9 9
REGISTER
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