ka2143b Samsung Semiconductor, Inc., ka2143b Datasheet
ka2143b
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ka2143b Summary of contents
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... DATA SHEET KA2143B APRIL. 1998 ...
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... R/G/B VIDEO AMPLIFIER WITH OSD INTERFACE FOR MONITORS R/G/B VIDEO AMPLIFIER The KA2143B is a very high frequency video amplifier system with OSD interface intended to be used in Monitor with high resolution up to 1024 768. It contains 3 matched R/G/B video Amplifiers with Blank signal and provides a flexible interfacing to DC controlled adjustment system. ...
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... KA2143B BLOCK DIAGRAM ONE (RED) OF THREE CHANNELS _ 1 ROSD GOSD 3 BOSD VI/OSD_SW RIN _ 6 VCC1 gm1 + GIN 7 8 GND1 BIN 9 CONST 10 11 OSD_ CONST CONTRAST 12 CLP 2 R/G/B VIDEO AMPLIFIER WITH OSD INTERFACE FOR MONITORS SWITH VIDEO CONTROL SUB_CONTRAST CONTROL ...
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... OSD Contrast Control I Clamp Gate Signal Input I Blank Gate Signal Input O Blue Video Output - Blue Clamp Cap O Green Video Output - Green Clamp Cap - V (output part Red Video Output - Red Clamp Cap - Ground I Blue Gain Control I Green Gain Control I Red Gain Control KA2143B 3 ...
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... KA2143B PIN DESCRIPTION Pin No Pin Name 1 Red OSD Input (ROSD) 2 Green OSD Input (GOSD) 3 Blue OSD Input (BOSD) 4 Video/OSD Switch (VI/OSD_SW) 5 Red Video Input (RIN) 7 Green Video Input (GIN) 9 Blue Video Input (BIN CC1 8 GND 4 R/G/B VIDEO AMPLIFIER WITH OSD INTERFACE FOR MONITORS Table 2 ...
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... PIN 10 220uA Vref 2.1V PIN 12 VCC PIN 19 PIN 15 KA2143B Description Video and OSD maximum contrast con- trol range (0V ~ 4V) is -38dB. Sub contrast gain (RGB Drive) control range (0V ~ 4V) is -11dB Video Amp actives when clamp gate and blank gate signal is in low TTL level ...
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... KA2143B Pin No Pin Name 18 VCC2 21 GND THERMAL & ESD CHARACTERISTICS No Item 1 Thermal Resistance (Junction-ambient) 2 Junction Temperature 3 Human Body Mode (C = 100p 1.5k) 4 Machine Model (C = 200p Charge Device Model 6 R/G/B VIDEO AMPLIFIER WITH OSD INTERFACE FOR MONITORS Table 2. Pin Description (Continued) Schematic - - Table 3. Thermal & ESD Parameter ...
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... 12V 12h 12 V Blank Gate On 13L V Blank Gate Off 13h 13L 12V 13h 13 V bias I Clamp Comparators On clamp+ I Clamp Comparators Off clamp- KA2143B Value Unit Min Typ Max - - 13.5 - -65 - 150 11.4 12.0 12.6 V 120 2 0V Min Typ Max ...
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... KA2143B Table 5. DC Electrical Characteristics (Continued) Parameter Video Output High Voltage Video Black Level Output Voltage Video Black Level Output Voltage Video Output Blanked Voltage Contrast/Drive Control Input Current Cut-Off Control Input Current Spot Killer Voltage AC Electrical Characteristics 12V; V ...
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... (OSD prop (OSD prop (OSD KA2143B Min Typ Max - Min Typ Max 0.4 1 1.3 2.0 0.8 1 1.6 2.0 - 0.01 0.2 -0.3 - 0.3 2.75 3.95 5. ...
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... KA2143B NOTES; 1. Absolute maximum rating indicates limit beyond which damage to the device may occur. 2. Operating ratings indicate conditions for which the device is functional but do not guarantee specific performance limits. For guaranteed specifications and test conditions, See the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed ...
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... VCC1 ROUT 0.1uF KA2143B 10uF 7 GIN VCC2 8 GND GCLP 10uF 9 BIN GOUT 10 CONST BCLP 11 OSD_CONST BOUT 100 12 CLP BLK KA2143B RDRV In 24 0.1uF GDRV In 23 0.1uF BDRV In 22 0.1uF 21 20 0.1uF Red Out 19 390 18 + 0.1uF 100uF 17 0.1uF Green Out 16 390 15 0.1uF ...