KA2143B データシートの表示（PDF） - Samsung

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KA2143B

R/G/B VIDEO AMPLIFIER WITH OSD INTERFACE FOR MONITORS

Samsung 

R/G/B VIDEO AMPLIFIER WITH OSD INTERFACE FOR MONITORS

KA2143B

Pin No

Pin Name

Table 2. Pin Description(Continued)

Schematic

Description

10

Video Contrast

(CONST )

11

OSD Contrast

(OSD_CONST)

22

Blue Drive

(BDRIVE)

23

Green Drive

(GDRIVE)

PIN 10

24

Red Drive

(RDRIVE)

Clamp Gate Input

12

(CLP)

Blank Gate Input

13

(BLK)

150uA

50uA

Video and OSD maximum contrast con-

trol range (0V ~ 4V) is -38dB.

Sub contrast gain (RGB Drive) control

range (0V ~ 4V) is -11dB

220uA

Vref 2.1V

Video Amp actives when clamp gate and

blank gate signal is in low TTL level

PIN 12

19

Red Video

Output

16

(ROUT)

Green Video

14

Output

(GOUT)

Blue Video

Output

(BOUT)

VCC

Video signal output

PIN 19

15

Blue Clamp Cap

(BCLP)

17

Green Clamp Cap

(GCLP)

20

Red Clamp Cap

(RCLP)

Brightness controlling actives by

changing and discharging of the external

cap. (0.1µF)

PIN 15

5

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