BA7603F

Multimedia ICs Video signal switcher BA7603 / BA7603F The BA7603 and BA7603F are switching ICs developed for use in VCRs. Each contains three two-channel analog multi-plexers. The switches have sync-tip clamped inputs and are ideal for switching video signals. Applications Video cassette recorders and televisions Features 1) Three 2-input / 1-output switches. 2) Sync-tip clamped inputs. 3) 5V power supply. 4) Low power consumption (62.5mW Typ.). 5) Excellent frequency characteristics (10MHz, 0dB Typ.). 6) Wide dynamic range (2.9VP-P Typ.). 7) Fast switching speed (50ns Typ.). Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 9 500∗ – 40 ~ + 85 – 55 ~ + 125 Unit V mW °C °C ∗ Reduced by 5.0mW for each increase in Ta of 1°C over 25°C. Block diagram IN2a CTLa OUTa GND OUTb OUTc CTLc IN2c 1 SWa 2 3 4 SWb 5 6 7 8 16 IN1a 15 GND 14 IN2b 13 VCC 12 CTLb 11 IN1b 10 GND 9 IN1c CTL L H Output IN 2 IN 1 SWc SWa, SWb, SWc: pedestal-clamped input 1 Multimedia ICs BA7603 / BA7603F Equivalent circuits SWa, SWb, SWc IN VCC R3 22k Q5 R2 4k R7 100 Q9 Q6 I2 0.3mA R12 200 R16 200 R9 200 Q7 Q8 Q10 Q11 R15 200 Q3 R10 100 Q2 Q12 Q1 OUT R1 1k R8 25k I1 0.6mA R17 12k I4 0.6mA I5 1mA R11 100 R13 100 R14 100 CTL VCC R1 50k I2 0.6mA Q1 Q6 R6 25k R2 200 CTL Q3 Q5 Q2 Q4 R5 25k I1 0.25mA R3 400 R4 400 I3 0.06mA 2 Multimedia ICs BA7603 / BA7603F CC Electrical...