KA2500 Samsung, KA2500 Datasheet

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KA2500

Manufacturer Part Number
KA2500
Description
I2C bus controlled RGB video amplifier for monitors, 150MHz, up to1280 x 1024.
Manufacturer
Samsung
Datasheet
APRIL. 1998
DATA SHEET
KA2500

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KA2500 Summary of contents

Page 1

... DATA SHEET KA2500 APRIL. 1998 ...

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... I C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS BUS CONTROLLED R/G/B VIDEO AMPLIFIER The KA2500 is a very high frequency video amplifier 2 system with I C Bus control used in Monitors with high resolution up to1280 1024. It contains 3 matched R/G/B video Amplifiers with OSD interface and provides flexible interfacing to I controlled adjustment systems ...

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... KA2500 BLOCK DIAGRAM ONE (RED) OF THREE CHANNELS OSD 1 ROSD INTERFACE 2 GOSD 3 BOSD 9 VCC2 gm1 5 RIN 6 VCC1 CLP 7 GND1 8 GIN B/U 28 B/U INTERFACE VIDEO/OSD 4 VI/OSD_SW SWITCH CLAMP 18 CLP GATE 10 BIN 19 BLK INTERFACE & CONTROL 11 GND( BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS ...

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... GIN BCLP 9 VCC2 10 BLK BIN CLP 11 GND(L) 12 RCT ABL 13 GCT SCL 14 BCT SDA Table 1. Pin Configuration I/O I Red OSD Input I Green OSD Input I Blue OSD Input I Video or OSD Switch I Red Video Input - V (normal Ground1 (normal) I Green Video Input - V (normal Configuration KA2500 3 ...

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... KA2500 Pin No Symbol 10 BIN 11 GND (L) 12 ABL 13 SCL 14 SDA 15 BCT 16 GCT 17 RCT 18 CLP 19 BLK 20 BCLP 21 BOUT 22 GND3 23 V CC3 24 GOUT 25 GCLP 26 ROUT 27 RCLP 28 B BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS Table 1. Pin Configuration I/O I Blue Video Input - Ground2 (logic) - Automatic Beam Limit ...

Page 6

... Table 2. Pin Description Schematic VCC 1.29/ 1.02V PIN 1 VCC PIN 4 VCC PIN 5 - KA2500 Description OSD input signals are in TTL level and will be connected to ground when switching to video input 1.16/ 0.90V Video/OSD switch signal is 6V TTL level PIN4 = “high”, OSD input PIN4 = “ ...

Page 7

... KA2500 Pin No Pin Name 7 GND1 11 GND2 (GND ( Blue Cut-Off (BCT) 16 Green Cut-Off (GCT) 17 Red Cut-Off (RCT) 18 Clamp Gate Input (CLP) 19 Blank Gate Input (BLK BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS Table 2. Pin Description (Continued) Schematic - 0~180uA 0~540uA 80uA 160uA 320uA ...

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... Description Video signal output PIN 26 Brightness control activated by charging and discharging of the external cap. (0.1 F) (During low clamp gate) Ground (drive part) Supply voltage (drive part) Serial clock input port of I BUS 27uA Serial data input port of I BUS 3.22V KA2500 ...

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... KA2500 Pin No Pin Name 28 B/U Input (B/U) 12 ABL Input (ABL BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS Table 2. Pin Description (Continued) Schematic PIN 28 100uA PIN 12 Description Parabola input via AC coupling VCC cap 4.6V VCC Automatic beam limitation input (Control Range: 0.5 ~ 4.5V) ...

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... Table 5. DC Electrical Characteristics Value Min Typ Max - - 13.2 - -65 - 150 11.4 12.0 12 2.0 Value Min Typ Max - 150 - 300 - - 800 - - Symbol Min Typ (4) 85 110 0.8 1.5 151 V 0.8 1.5 15h KA2500 Unit ( Unit C Max Unit 135 mA 3 ...

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... KA2500 Table 5. DC Electrical Characteristics (Continued) Parameter Clamp Gate Low Input Current Clamp Gate High Input Current Blank Gate Low Input Voltage Blank Gate High Input Voltage Blank Gate Low Input Current Blank Gate High Input Current Video Input bias Voltage ...

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... Min Typ AV max 15.5 17.5 Avc1 -4.5 -6.0 Avc2 - -38 Avd1 -3 -4 Avd2 - match V ( track V THD - 1 f (-3dB) 130 150 - 2.3 - 3.2 (9) - -65 (7, Symbol Min Typ V 0.4 1.3 OSDI KA2500 Max Unit 19.5 dB -7 MHz 2.8 ns 4.0 ns - Max Unit 3 ...

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... KA2500 Table 7. OSD Electrical Characteristics (Continued) Parameter OSD Input High Input Voltage OSD Select Low Input Voltage OSD Select High Input Voltage OSD Select Low Input Current OSD Select High Input Current OSD Output Black Level OSD Output Voltage OSD Output Vpp Attenuation ...

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... Fall Time of SCL BUS Timing Requirement t BUF SDA SCL 2 C BUS Recommended Operating Conditions Symbol VinH VinL f SCL t BUF t HDS t SUP t LOW t HIGH t HDAT t SUPDAT HDAT t HDS t SUPDAT t HIGH KA2500 Min Typ Max 3 1 200 3.0 t SUP ...

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... KA2500 NOTES; 1. Absolute Maximum Rating Indicates the 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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... Data Transfer All bytes are sent MSB (Most Significant Bit) bit first and the write data transfer is closed by a stop. The MCU can write data into the KA2500 registers that, after a start, the MCU must send The I C address slave byte with a low level for R/W bit (bit1) ...

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... KA2500 BUS Write Operation MSB SCL transter SDA START Slave address Register Description Register Sub Address (Slave address: DCH) Sub Address (Hex) 00 Contrast control 01 Brightness control (3-ch) 02 SUB Contrast control (R) 03 SUB Contrast control (G) 04 SUB Contrast control (B) 05 OSD Contrast control ...

Page 18

... Brightness (Vpp SUB Contrast OSD Contrast Gain (dB) Int. value (Hex) 0 -30.0 1.12 11.5 4.2 17.5 Int. value (Hex 0.0156 Gain (Vpp) (dB) 1.33 7.5 2.65 13.5 4.2 17.5 0.0123 Gain (Vpp) (dB 3.7 - 3.5 - 0.0289 KA2500 O O Int. value (Hex) O Int. value (Hex ...

Page 19

... KA2500 Cut-Off Brightness Register (3-ch) (SUB ADRS: 06H) Hex Increment/bit Cut-Off Register (R/G/B-ch) (SUB ADRS: 07/08/09H) (cont = 80H, subcont: FFH, INT: CT=0, EXT: CT=1) Hex Increment/bit BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS Cut-Off Brightness ( Cut-Off INT ( 3.9mV Int. value (Hex) ...

Page 20

... CLP In 100 18 75V 17 75K BAV21 75K 16 12V KSP92 + 15 KSP42 1uF + 75V 100V 0.47uF 50V 2.2K 75K 100 BAV21 75K 12V KSP92 + 1uF KSP42 + 100V 0.47uF 50V 2.2K 100 12V + 1uF 100V 100 KA2500 BU In 75V 75K BAV21 75K KSP92 KSP42 + 2.2K 19 ...

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... KA2500 APPLICATION CIRCUIT 2. BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS 2.2K 0.1uF 100uF 0.1uF 100uF 100uF 0.1uF + 12V 2. ...

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... I C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS CHARACTERISTICS CURVE 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 180 160 140 120 100 Brightness (01H) Cut-Off Brightness Control (06H Cut-Off (07/08/09H): 80H 18mV/Bit Data SW (0AH): 04H 0.7uA/Bit Data KA2500 21 ...

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... KA2500 2.7 2.5 2.3 2.1 1.9 1.7 1 600 500 400 300 200 100 BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS Int. Cut-Off Control (07/08/09H) Ext. Cut-Off Control (07/08/09H) Cut-Off BRT (06H): 00H Bright (01H): 80H 4.6mV/Bit 2.14uA/Bit Data F0 Data ...

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... I C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS 4.5 4 3.5 3 2.5 2 1 -10 -20 -30 -40 - Contrast Control (00H) Vin = 560mVpp Contrast Control (00H) Drive (02/03/04H): FFH KA2500 18.36mVpp/Bit Data Data 23 ...

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... KA2500 4.5 4 3.5 3 2.5 2 1 18.00 16.00 14.00 12.00 10.00 8.00 6. BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS Drive Control (02/03/04H) Vin = 560mVpp Contrast(00H):FFH Drive Control (02/03/04H) 12mVpp/Bit Data Contrast(00H): FFH Data ...

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... I C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS -10 -20 -30 - OSD Contrast Control (05H OSD Contrast Control (05H Drive (02/03/04H): FFH 28.6mVpp/Bit Drive (02/03/04H): FFH KA2500 F0 Data F0 Data 25 ...

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... KA2500 -10 -11 - -10 - BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS f-3dB (Video Preamp) 75 100 125 150 175 200 225 250 275 300 325 350 ABL Characteristic 1 1.5 2 2.5 f[MHz] 3 3.5 4 4.5 VABL [V] ...

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... I C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS 0.5 BU Characteristic 1.0 1.5 2.0 2.5 3.0 3.5 VBU [Vpp] KA2500 4.0 27 ...

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