Samsung KA2197D Datasheet

KA2197D RGB ENCODER FOR NTSC

24-SOP

RGB ENCODER

The KA2197 is a monolithic integrated circuit designed
for RGB encoder of video system. This device contains
matrix of R-Y/B-Y, modulator, pulse generator, regulator
and built in BPF of chroma and delay line of luminance
and Y/C output using S-VHS system.
The KA2197D is suitable for video equipment.

FUNCTIONS

• Regulator

• Mixer of R-Y, B-Y

• Modulator

• Pulse generator

• Audio buffer

• X-tal oscillator

• Clamp circuit

• BPF & D.L circuit

• Y/C output

BLOCK DIAGRAM

24 23

22 21

20 19 18 17 16 15

R

G

R,G,B OUTPUT

B

VIDEO
OUTPUT

MATRIX

ORDERING INFORMATION

Device Package Operating Temperature

KA2197D 24SOP

Y/C
MIXER

R-Y MODULATOR

B-Y MODULATOR

DL &
TRAP

C OUTY OUT

3.58M
BPF

+

-20°C ~+70°C

14

REGULATOR

13

SYNC
ADD

R,G,B CLAMP

R

1

2

G B

3

4

X-TAL
OSC.

5

PHASE
SHIFTER

6 8

7

PULSE
GEN.

BUFFER

9 10 11 12

SYNC
OUT

KA2197D RGB ENCODER FOR NTSC

PIN CONFIGURATION

Pin No. DESCRIPTION Pin NO DESCRIPTION

1 GND 1 13 REGULATOR CURRENT SINK
2 RED INPUT 14 2V REGULATOR OUTPUT
3 GREEN INPUT 15 C OUT
4 BLUE INPUT 16 Y OUT
5 X-TAL OUT 17 N.C
6 X-TAL IN 18 N.C
7 N.C 19 VCC 2
8 AUDIO IN 20 COMPOSITE VIDEO OUTPUT

9 AUDIO OUT 21 BLUE OUTPUT
10 COMPOSITE SYNC INPUT 22 GREEN OUTPUT
11 COMPOSITE SYNC OUTPUT 23 RED OUTPUT
12 VCC 1 24 GND 2

* VCC 1, GND 1 : EXCEPT OUTPUT STAGE
* VCC 2, GND 2 : OUTPUT STAGE

ABSOLUTE MAXIMUM RATINGS (TA=25°C)

Characteristic Symbol Value Unit

Supply Voltage V
Power dissipation P
Operating Temperature T
Storage Temperature T

CC

D
OPR

STG

ELECTRICAL CHARACTERISTICS(TA=25°C, VCC=5V)

Characteristic Symbol Test Condition Min Typ Max Unit

Supply Current 1 I
Supply Current 2 I
R Output Voltage V
G Output Voltage V
B Output Voltage V
R Frequency Response f
G Frequency Response f
B Frequency Response f
Sync. Level V
R 100% Y Level V
G 100% Y Level V
B 100% Y Level V

CC1
CC2

O
O

O
C
C
C
OS

O

O

O

No Signal input 29 39 49 mA
No Signal input 6.0 11 16 mA

R

=1 V

IN

P-P

GIN =1 V

BIN =1 V

P-P

P-P

R, G, B f = 200 KHz 5 - - MHz

-dB POINT 5 - - MHz

Condition:R, G, B and 0.26 0.29 0.33 V
C Sync. input 0.19 0.21 0.25 V
Measure Composite 0.38 0.42 0.48 V
Video Output 0.07 0.08 0.09 V

10 V

1250 mW

-20~+70

-55~+150

0.64 0.71 0.78 V

0.64 0.71 0.78 V

0.64 0.71 0.78 V

5 - - MHz

°C
°C

P-P
P-P
P-P