UPC1830GT NEC, UPC1830GT Datasheet - Page 3

• Manufacturer Part Number: UPC1830GT
• Description: FILTER-CONTAINING VIDEO CHROMA/ SYNCHRONIZING SIGNAL PROCESSING LSI COMPATIBLE WITH NTSC/PAL SYSTEM
• Manufacturer: NEC

2. BLOCK DIAGRAM
CVBS
3.58/4.43
NTSC/PAL
V
CC
Mode
switch
42
1
32 f
41
H
2
VCO
H/V count
H sync.
detect
+
40
3
Sync.
separate
V filter
H
39
4
V
+
+
AFC wave
detect
38
5
Contrast
control
V
50/60
CC
37
BLK
6
H
V
Clamp
V
Sub color
control
+
chroma
Separate/composite switch
CC
trap
36
7
V
Killer
detect
CC
V
35
HD, VD, blanking pulse,
killer output buffer
8
CC
+
Separate/composite
switch, A
subcolor control
Delay
BLK HD
34
9
Separate/
composite
switch
Separate
chroma
chroma
CC
BPF
33
amp.
10
Y
C
Contrast
control
VD
32
11
Filter f
adjust
31
12
Y
output buffer
Y, R-Y, B-Y
+
C
Y
0
+
R-Y B-Y
APC, killer detect,
IDENT detect
R-Y, B-Y
modulate
30
13
R-Y
R-Y B-Y
LPF
3.58 MHz/4.43 MHz
VCXO, PAL SW
29
14
B-Y
f
SC
28
15
V
Killer
CC
27
16
f
Y
+
SC
Y, R-Y, B-Y
input clamp
26
17
NTSC/PAL
matrix
Tint control
R-Y B-Y
25
18
Amp. color
control
RGB output
B
R-Y B-Y G-Y
R-Y
R-Y
R
buffer
24
19
G
Color
control
G
B-Y
B-Y
PC1830
23
20
B
R
Clamp
pulse
22
21
3