KA2195D
RGB ENCODER FOR NTSC
RGB ENCODER
The KA2195D 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.
The KA2195D is suitable for video equipment
24 SOP
FUNCTION
•
•
•
•
•
•
•
•
Regulator
Mixer of R-Y, B-Y
Modulator
Pulse generator
Audio buffer
X-tal oscillator
Clamp circuit
BPF & D.L circuit
ORDERING INFORMATION
Device
Package Operating Temperature
KA2195D 24SOP
-20~+70°C
FEATURE
•
Lower operating voitage:Vcc= 5V
•
Stabilized bias condition in regulator
•
Available only NTSC system
•
Included 75 ohm driver (RGB Output, composite video output, composite sync. output)
•
Sub-carrier frequency using X-tal and available external input
•
Include BPF & delay line
:Minimized external components
•
Audio buffer circuit
•
R-Y, B-Y modulator
BLOCK DIAGRAM
24
23
R
22
G
21
B
20
VIDEO
OUTPUT
19
18
Y/C
MIXER
17
16
DL &
TRAP
15
3.58M
BPF
14
13
REGULATOR
R,G,B OUTPUT
MATRIX
R-Y MODULATOR
+
B-Y MODULATOR
SYNC
ADD
R,G,B CLAMP
X-TAL
OSC.
PHASE
SHIFTER
PULSE
GEN.
BUFFER
SYNC
OUT
R
1
2
G
3
B
4
5
6
7
8
9
10
11
12
PIN CONFIGURATION
KA2195D
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
DESCRIPTION
GND 1
RED INPUT
GREEN INPUT
BLUE INPUT
X-TAL OUT
X-TAL IN
NTSC S/W(VCC)
AUDIO IN
AUDIO OUT
COMPOSITE SYNC INPUT
COMPOSITE SYNC OUTPUT
VCC 1
Pin No
13
14
15
16
17
18
19
20
21
22
23
24
RGB ENCODER FOR NTSC
DESCRIPTION
REGULATOR CURRENT SINK
2V REGULATOR OUTPUT
N.C
N.C
N.C
N.C
VCC 2
COMPOSITE VIDEO OUTPUT
BLUE OUTPUT
GREEN OUTPUT
RED OUTPUT
GND 2
* VCC 1,GND 1: EXCEPT OUTPUT STAGE
* VCC 2, GND 2: OUTPUT STAGE
ABSOLUTE MAXIMUM RATINGS
(T
A
=25°C)
Characteristic
Supply Voltage
Power dissipation
Operating Temperature
Storage Temperature
Symbol
V
CC
P
D
T
OPR
T
STG
Value
10
1250
-20~+70
-55~+150
Unit
V
mW
°C
°C
ELECTRICAL CHARACTERISTICS
(T
A
=25°C, V
CC
=5V)
Characteristic
Supply Current 1
Supply Current 2
R Output Voltage
G Output Voltage
B Output Voltage
R Frequency Response
G Frequency Response
B Frequency Response
Sync. Level
R 100% Y Level
G 100% Y Level
B 100% Y Level
Symbol
I
CC1
I
CC2
V
O
V
O
V
O
f
C
f
C
f
C
V
OS
V
O
V
O
V
O
Test Condition
No Signal input
No Signal input
R
IN
=1 V
P-P
G
IN
=1 V
P-P
B
IN
=1 V
P-P
R, G, B f = 200 KHz
-dB POINT
Condition:R, G, B and
C Sync. input
Measure Composite
Video Output
Min
20
5.6
0.64
0.64
0.64
5
5
5
0.26
0.19
0.38
0.07
Typ
27
7.6
0.71
0.71
0.71
-
-
-
0.29
0.21
0.42
0.08
Max
32
11
0.78
0.78
0.78
-
-
-
0.33
0.25
0.48
0.09
Unit
mA
mA
V
P-P
V
P-P
V
P-P
MHz
MHz
MHz
V
V
V
V
51mcu
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