KA2139 [SAMSUNG]
3 CHANNEL R.G.B VIDEO AMPLIFIER; 3通道R.G.B视频放大器
| 型号： | KA2139 |
| 厂家： | 
SAMSUNG |
| 描述： | 3 CHANNEL R.G.B VIDEO AMPLIFIER |
| 文件： | 总6页 (文件大小：94K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
KA2139
VIDEO AMPLIFIER FOR MONITOR
3 CHANNEL R.G.B VIDEO AMPLIFIER
28-DIP-600A
The KA2l39 is a monolithic integrated circuit for processing
the R,G,B video in high resolution CRT display.
It contains 3 channel video amplifier, black level clamp
comparator for brightness control and DC control attenuator
for contrast control, this device is suitable for monitor.
FUNCTIONS
· R. G. B amplifier
· Contrast control
· Clamp & brIghtness circuit
· Vref. circuit
FEATURES
· 3 Channel R.G.B video amplifier (f.-3DB=7OMHz:Typ)
· Superior linearity contrast control
· Black level clamp comparator for
brightness control
· Built-in clamp gate circuit to operate the
clamp comparator at black level
· Vref 2.4V bandgap circuit
ORDERING INFORMATION
Device Package Operating Temperature
KA2139 28 DIP
-20°C ~ +70°C
BLOCK DIAGRAM
28
27
26
24
23
22
21
20
19
18
17
16
15
25
A2
A2
A2
A1
gm
gm
gm
A1
A1
+
-
+
-
+
-
CONTRAST
CONTROL
RED
BLUE
GREEN
1.4
V
Vref
2.4V
2
1
3
4
5
6
7
8
9
10
11
12
13
14
KA2139
VIDEO AMPLIFIER FOR MONITOR
PIN DESCRIPTION
No
1
Symbol
VCC1
Description
Power supply 1
No
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Symbol
BCLAMP(+) B brightness control
BOUT B channel output
BCLAMP(-) B-CH clamp feedback
BDREVE B-CH drive output
GCLAMP(+) G brightness control
GOUT G channel output
GCLAMP(-) G-CH clamp feedback
Description
2
CONCAP1 Contrast capacitor 1
CONCAP2 Contrast capacitor 2
3
4
RIN
R channel input
5
RCAP
GIN
R-CH comparator cap.
G channel input
6
7
GND
GCAP
BIN
Ground
8
G-CH comparator cap.
B channel input
GDRIVE
VCC2
G-CH drive output
Power supply 2
9
10
11
12
13
14
BCAP
VREF
B-CH comparator cap.
R,G,B amp. offset voltage
Contrast control
RCLAMP(+) R brightness control
ROUT R channel output
RCLAMP(-) R-CH clamp feedback
CON
VCC1
Power supply 1
RDRIVE
VCC1
R-CH drive output
Power supply 1
GATEIN
Clamp gate input
ABSOLUTE MAXIMUM RATINGS (TA = 25°C)
Characteristics
Symbol
Value
Unit
Maximum Supply Voltage
Maximum Supply Current
Operating Voltage
Maximum Power Dissipation
Storage Temperature
VCCmax
lCCmax
VCCopr
PDmax
TSTG
13.5
105.0
10.8~13.2
2.5
- 55~+150
- 20~ + 70
V
mA
V
w
°C
°C
Operating Temperature
TOPR
KA2139
VIDEO AMPLIFIER FOR MONITOR
ELECTRICAL CHARACTERISTICS
(VCC = 12V, TA = 25°C, unless otherwise specified)
Characteristics
Supply Current
Symbol
Test Condition
Min
Typ
Max
Unit
ICC
VH 16,20,25
VH 16,20,25
VREF
75
1.9
3.9
2.0
-
90.0
2.0
105
2.1
4.1
2.8
20.0
-
mA
V
R,G,B CH Output Voltage 1
R,G,B CH Output Voltage 2
Input Reference Voltage
R,G,B Input Bias Current
Clamp Gate Low Input Voltage
Clamp Gate High Input Voltage
Clamp Gate Low Input Current
Clamp Gate High Input Current
R,G,B Clamp CAP.
VCC = 12V
V24 = 2V
4.0
V
V12 = 6V
2.4
V
Iin
V14 = 0V
5.0
mA
V
V14L
V14 Variable
V14 Variable
V14 = 0V
0.8
-
1.2
V14H
1.6
2.0
-
V
IgateL
-5.0
-
-5.0
0.05
mA
mA
IgateH
V14 = 12V
1.0
Iclamp(+)
Vclamp cap. = 0V 0.5
0.85
1.2
mA
Charge Current
R,G,B Clamp CAP.
Discharge Current
Iclamp(-)
Vclamp cap. = 5V -0.5
-0.85
-1.2
mA
R,G,B Output Low Voltage
R,G,B Output High Voltage
Contrast Capacitor Voltage 1
VOL 16,20,25
VOH 16,20,25
Vcon1
Vclamp = 0V
Vclamp = 5V
-
1.0
8.5
5.2
1.4
-
V
V
V
8.0
4.8
Measure the
contrast
5.6
Contrast Capacitor Voltage 2
R,G,B Output DC Offset
Low Voltage
Vcon2
capacitor voltage 4.8
5.2
0
5.6
50
V
V24 = 2V
-50
mV
DVR-GL
R,G,B Output DC Offset
High Voltage
V24 = 4V
-50
0
50
mV
dB
DVR-GH
R,G,B Video Amp. Gain 1
AVmax
V12 = 12V, Vin 13.1
= 0.56
15.6
18.1
VP.P
R,G,B Video Amp. Gain 2
R,G,B Video Amp. Gain 3
R,G,B Output Gain Difference 1
V12 = 5V
V12 = 2V
-5
-10.0
-40.0
0
-1.5
-50
1.0
dB
dB
dB
DAV5
DAV2
-30
-1.0
V12 = 12V
VIN = 1.0VP.P
V12 = 5V
DAVR-G
R,G,B Output Gain VAR. 1
R,G,B Output Gain VAR. 2
-1.0
-3.0
0
0
1.0
3.0
dB
dB
DAVR-G1
DAVR-G2
V12 = 2V
KA2139
VIDEO AMPLIFIER FOR MONITOR
ELECTRICAL CHARACTERISTICS
(VCC = 12V, TA = 25°C, unless otherwise specified)
Characteristics
Symbol
THD
f-3dB
Test Condition
V12= 4V
V12= 12V
Min
Typ
Max
Unit
R,G,B Amp. Distortion
R,G,B Amp. Banwidth
R,G,B Amp. rising time
R Amp. Isolation1-100K
-
50
-
0.5
70
5.0
-
%
MHz
ns
Rtr, Gtr, Btr V12= 12V
AR1iso100K Measure the G output
level
5.0
-60
7.2
-
-40
dB
R Amp. Isolation2-100K
G Amp. Isolation1-100K
G Amp. Isolation2-100K
B Amp. Isolation1-100K
B Amp. Isolation2-100K
R Amp. Isolation1-100K
R Amp. Isolation2-100K
G Amp. Isolation1-100K
G Amp. Isolation2-100K
B Amp. Isolation1-100K
B Amp. Isolation2-100K
AR2iso100K Measure the B output level
-40
-40
-40
-40
-40
-25
-25
-25
-25
-25
-25
-60
-60
-60
-60
-60
-40
-40
-40
-40
-40
-40
-
-
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
AG1iso100K Measure the R output level
AG2iso100K Measure the B output level
AB1iso100K Measure the R output level
AB2iso100K Measure the G output level
AR1iso100K Measure the G output level
AR2iso100K Measure the B output level
AG1iso100K Measure the R output level
AG2iso100K Measure the B output level
AB1iso100K Measure the R output level
AB2iso100K Measure the G output
level
KA2139
VIDEO AMPLIFIER FOR MONITOR
TEST CIRCUIT
R
G
B
OUT
OUT
OUT
10KW
330
W
0.1mF
100W
100W
0.1mF
0.1mF
330W
100W
0.1
F
m
A
10K
W
10KW
10KW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
KA2139
4
A
2
3
6
A
7
10
11
14
A
1
5
8
9
A
12
13
0.1mF
0.1mF
A
0.1mF
0.1mF 0.1mF 0.1mF
VCC
12V
0.1mF
0.1
m
F
0.1mF
0.1mF
5mF
5mF
+
5mF
+
+
10KW
50W
50W
10KW
100
10KW
100W
RIN
BIN
+
W
10KW
5 F
m
+
50W
10KW
47mF
0.1mF
KA2139
VIDEO AMPLIFIER FOR MONITOR
APPLICATION CIRCUIT
B
R
G
OUT
OUT
OUT
330
330
330
10K
+
1K
0.01mF
00
100
200
2
100
100
200
28
27
26
25
24
23
22
21
20
19
18
17
16
15
0.1mF
KA2139
1
3
4
7
8
11
470K
2
5
6
9
10
13
14
12
470K
0.1mF
+
+
+
470K
0.1mF
0.1mF
0.47mF
0.47mF
0.47mF
10K
+
10K
10K
10K
10K
1K
10mF
4.7K
+
+
+
10mF
10mF
0.1mF
10mF
R
G
INPUT
B
CLAMP
GATE
INPUT
INPUT
INPUT
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