KA2198BD
RGB ENCODER FOR PAL/NTSC
RGB ENCODER FOR PAL/NTSC
The KA2198BD is a monolithic circuit designed for RGB encod...
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 luminance, 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 : VCC = 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
U
D
I O
B
U
F
F
E
R
SYNC. IN
1
2
3
4
5
6
7
8
9
10
11
12
KA2198BD
PIN CONFIGURATION
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 (note) DESCRIPTION GND1 R INPUT G INPUT B INPUT N.C fsc INPUT NTSC/PAL SW AUDIO IN AUDIO OUT COMPO...