BA7622F

Multimedia ICs 75Ω driver IC with 3 internal circuits BA7622F The BA7622F is a 75Ω driver-IC developed for use in video equipment. It includes three 75Ω driver circuis,two of which have sync-tip clamp inputs.The other driver has a biased input terminated with a 20kΩ resistor.Each output can drive two loads (75Ω × 2). Applications Video cassette recorders, televisions and camcorders Features 1) Two built-in clamp circuits. 2) Simultaneous drive of Y, C and composite video signals possible. 3) Each output can drive two loads. Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 8.0 550∗ – 25 ~ + 75 – 55 ~ + 125 Unit V mW °C °C ∗ Reduced by 5.5mW for each increase in Ta of 1°C over 25°C. 1 Multimedia ICs BA7622F Block diagram GND 1 75Ω driver 8 OUT1 IN1 2 Clamp 75Ω driver 7 OUT2 IN2 3 Clamp 75Ω driver 6 OUT3 20k IN3 4 NO Clamp 5 VCC Pin descriptions Pin No. 1 2 3 4 5 6 Pin name GND IN1 IN2 IN3 VCC OUT3 Ground connection Clamp input Input composite video or the Y signal separated from Y / C. Clamp input Input composite video or the Y signal separated from Y / C. Biased input Input the chroma signal. Terminated with a 20kΩ resistor. Power supply Biased output Output for the signal input to IN3. When connected to earth a protection circuit operates, and the IC enters power-save mode. Clamped output Output for the signal input to IN2. When connected ...