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PDF KA2198BD Data sheet ( Hoja de datos )

Número de pieza KA2198BD
Descripción RGB ENCODER FOR PAL/NTSC
Fabricantes Samsung 
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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 : 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 17 16 15 14 13
R ,G ,B
OUTPUT
VIDEO
OUTPUT
Y/C
MIXER
MATRIX
SYNC. ADDER
R-Y MODULATOR
B-Y MODULATOR
Y OUT C OUT
Vref
D.L
BPF
C AM P
R,G,B CLAMP
PHASE
CONTROL
A U D IO
BUFFER
SYNC. IN
1 2 3 4 5 6 7 8 9 10 11 12

1 page




KA2198BD pdf
KA2198BD
RGB ENCODER FOR PAL/NTSC
APPLICATION CIRCUIT
R G B CVBS
OUT OUT OUT OUT
Y OUT C OUT
75¥ Ø 75¥ Ø 75¥ Ø 75¥ Ø
470¥ Fì 470¥ Fì 470¥ Fì 470¥ Fì
++++
24 23 22 21 20 19
75¥ Ø 75¥ Ø
*L
470¥ Fì 470¥ ìF
*C
n.c
++
18 17 16 15
10¥ ìF
+
n.c
14 13
0.01¥ Fì
+ Vcc (5V)
100¥ ìF
KA2198BD
1 2 3 4 5 6 7 8 9 10 11 12
n.c n.c
Vcc (NTSC)
GND (PAL)
0.1¥ Fì 0.1¥ Fì 0.1¥ Fì
AUDIO
OUT
R GB
IN IN IN
fsc in
AUDIO
IN
C.SYNC
IN
0.3 ~5.7Vpp
3.58MHz(NTSC), 4.43 MHz(PAL)
SYSTEM
NTST
PAL
Fo(MHz)
3.57
4.43
HL(uH)
100
82
HC(pF)
20
15

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