Video signal switcher
Multimedia ICs
Video signal switcher
BA7604N
The BA7604N is a switching IC developed for use in VCRs. It has two-channe...
Description
Multimedia ICs
Video signal switcher
BA7604N
The BA7604N is a switching IC developed for use in VCRs. It has two-channel analog multiplexers, and features wide dynamic range, and wide operating frequency range, and is suitable for switching audio and video signals.
Applications VCRs and TVs
Features 1) Two 2-input / 1-output switches. 2) 5V power supply. 3) Low power consumption (42mW Typ.). 4) Excellent frequency characteristics (10MHz, 0dB, Typ.).
5) Wide dynamic range (3.0VP-P Typ.). 6) High input impedance (20kΩ 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
Sa Sb
1 IN1a
2 VCC
3 IN2a
4 CTLa
5 OUTa
6 OUTb
7 CTLb
8 IN2b
9 GND
10 IN1b
CTL L H
Output IN2 IN1
Sa, Sb: Non-clamped
1
Multimedia ICs
BA7604N
Equivalent circuits
Sa, Sb
IN VCC R3 13.6k I2 0.3mA Q5 R7 100 Q9 R12 200 R16 200
R4 200
R2 2.2k
Q4
R6 20k
R9 200
Q7
Q8
Q10 Q11
R15 200
Q3 R10 100 Q2 Q12 Q1 OUT R1 1k R5 33k 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
BA7604N
CC
Electrical characteristics (unless otherwise noted, Ta = 25°C and V
Parameter Operating volt...
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