KA2141

APRIL. 1998 DATA SHEET KA2141 R/G/B VIDEO AMPLIFIER FOR MONITORS KA2141 R/G/B VIDEO AMPLIFIER The KA2141 is a very high frequency Video amplifier system to be used in Monitor. It contains 3 matched R/G/B video amplifiers with blank signal and clamp gate pulse and provides a flexible interfacing to DC controlled adjustment system 20-DIP-300A FUNCTIONS R/G/B Video Amplifier Contrast/SUB contrast control Brightness control Blank gate/Clamp gate Video clamp ORDERING INFORMATION Device KA2141 Package 20-DIP-300 Operating Temperature -25 °C ~ +70 °C FEATURES 3 - channel R/G/B Video Amplifier: 85MHz bandwidth. DC contrast control range: -38dB (0V ~ 4V) DC sub contrast control range: -11dB (0V ~ 4V) Maximum Video output level: 7Vpp DC Brightness control range: 0V ~ 4V Include blank gate and clamp gate signal processing block 1 KA2141 R/G/B VIDEO AMPLIFIER FOR MONITORS BLOCK DIAGRAM ONE (RED) OF THREE CHANNELS BDRIVE 1 20 BRIGHT GDRIVE 2 19 ROUT -A3 RDRIVE 3 2.4V _ A1 + VIDEO CONTRAST VIDEO SUB_CONTRAST + _ A2 18 RCLP RIN 4 -A4 17 GOUT VCC1 5 gm GIN GND1 7 BIN 8 CONTRAST CONTROL CLAMP GATE BLANK GATE CONST 9 CLP 10 2 + 6 _ VIDEO CONTRAST CONTROL VIDEO SUB_CONTRAST CONTROL 16 VCC2 15 GCLP 14 GND2 13 BOUT 12 BCLP 11 BLK R/G/B VIDEO AMPLIFIER FOR MONITORS KA2141 PIN CONFIGURATIONS Table 1. Pin Configurations Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 BDRIVE GDRIVE RDRIVE RIN VCC1 GIN GND1...