KA2139 datasheet(3/6 Pages) SAMSUNG

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KA2139

VIDEO AMPLIFIER FOR MONITOR

ELECTRICAL CHARACTERISTICS

(VCC = 12V, TA = 25

°C, unless otherwise specified)

Characteristics

Symbol

Test Condition

Min

Typ

Max

Unit

Supply Current

ICC

90.0

105

R,G,B CH Output Voltage 1

VH 16,20,25

VCC = 12V

1.9

2.0

2.1

R,G,B CH Output Voltage 2

VH 16,20,25

V24 = 2V

3.9

4.0

4.1

Input Reference Voltage

VREF

V12 = 6V

2.0

2.4

2.8

R,G,B Input Bias Current

Iin

V14 = 0V

5.0

20.0

µA

Clamp Gate Low Input Voltage

V14L

V14 Variable

0.8

1.2

Clamp Gate High Input Voltage

V14H

V14 Variable

1.6

2.0

Clamp Gate Low Input Current

IgateL

V14 = 0V

-5.0

µA

Clamp Gate High Input Current

IgateH

V14 = 12V

0.05

1.0

µA

R,G,B Clamp CAP.

Charge Current

Iclamp(+)

Vclamp cap. = 0V

0.5

0.85

1.2

R,G,B Clamp CAP.

Discharge Current

Iclamp(-)

Vclamp cap. = 5V

-0.5

-0.85

-1.2

R,G,B Output Low Voltage

VOL 16,20,25

Vclamp = 0V

1.0

1.4

R,G,B Output High Voltage

VOH 16,20,25

Vclamp = 5V

8.0

8.5

Contrast Capacitor Voltage 1

Vcon1

Measure the

contrast

4.8

5.2

5.6

Contrast Capacitor Voltage 2

Vcon2

capacitor voltage

4.8

5.2

5.6

R,G,B Output DC Offset

Low Voltage

∆VR-GL

V24 = 2V

-50

R,G,B Output DC Offset

High Voltage

∆VR-GH

V24 = 4V

-50

R,G,B Video Amp. Gain 1

AVmax

V12 = 12V,

Vin

= 0.56

VP.P

13.1

15.6

18.1

R,G,B Video Amp. Gain 2

∆AV5

V12 = 5V

-5

-10.0

-1.5

R,G,B Video Amp. Gain 3

∆AV2

V12 = 2V

-30

-40.0

-50

R,G,B Output Gain Difference 1

∆AVR-G

V12 = 12V

VIN = 1.0VP.P

-1.0

1.0

R,G,B Output Gain VAR. 1

∆AVR-G1

V12 = 5V

-1.0

1.0

R,G,B Output Gain VAR. 2

∆AVR-G2

V12 = 2V

-3.0

3.0

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