KA2198BD
RGB ENCODER FOR PAL/NTSC
RGB ENCODER FOR PAL/NTSC
The KA2198BD is a monolithic circuit designed for RGB
encoder of video system. This device provides encoding
system of PAL and NTSC video signal. The KA2198BD
contains matrix of R-Y/B-Y, modulator, pulse generator,
regulator, built in BPF of chroma and delay line of lumin-
ance, Y/C output using S-VHS system. It is suitable for
video equipment.
24-SOP-300
FUNCTIONS
•
Regulator
•
Mixer of R-Y, B-Y
•
Modulator
•
Pulse generator (ECL circuit)
•
Audio buffer
•
Clamp circuit
•
Y-TRAP filter
•
BPF & D.L circuit
•
Y/C output driver
ORDERING INFORMATION
Device
Package Operating Temperature
KA2198BD 24-SOP-300
-20°C~+65°C
FEATURES
•
Lower operating voltage : V
CC
= 5V
•
Stabilized bias condition in regulator
•
Abailable PAL/NTSC system
•
Included 75 ohm driver ( RGB output, composite video output, Y/C output)
•
External fsc ( color sub-carrier)
•
Include BPF & delay line
•
Audio buffer circuit
•
R-Y, B-Y modulator
•
Available S-VHS
•
High frequency response of luminance
BLOCK DIAGRAM
24
22
22
21
20
19
18
Y/C
MIXER
17
16
Y OUT
15
C OUT
14
13
Vref
R
, G
, B
O
U
T
P
U
T
VIDEO
OUTPUT
D.L
BPF
SYNC. ADDER
MATRIX
R-Y MODULATOR
C
A
M
P
B-Y MODULATOR
PHASE
CONTROL
R,G,B CLAMP
A
B
U
U
D
F
F
I O
E
R
SYNC. IN
1
2
3
4
5
6
7
8
9
10
11
12
SAMSUNG [ SAMSUNG SEMICONDUCTOR ]
