ROHM BA7609F, BA7609 Datasheet
1) Three 2-input / 1-output switches (one with syncclamped inputs, the other two non-clamped).
2) 5V power supply.
3) Low power consumption (62.5mW Typ.).
4) Excellent frequency characteristics
(10MHz, 0dB Typ.).
5) Wide dynamic range (clamped input: 2.9V
P-P Typ.,
non-clamped input: 3.0V
P-P, Typ.).
6) Fast switching speed (50ns Typ.).
1
Multimedia ICs
Video signal switcher
BA7609 / BA7609F
The BA7609 and BA7609F are switching ICs developed for use in VCRs. Each contains three two-channel analog
multiplexers. As one of the switches has sync-tip clamp inputs and the other two have non-clamped inputs these ICs
are ideal for switching audio, video and chroma signals.
•
Applications
Video cassette recorders and televisions
•
Features
•
Block diagram
1IN2a
2CTLa
3OUTa
4GND
5OUTb
6OUTc
7CTLc
8IN2c
16 IN1a
15 GND
14 IN2b
13 VCC
Sa
Sb
12 CTLb
11 IN1b
10 GND
9 IN1c
SC
CTL
L IN2
H IN1
Output
S
a
, Sb: non-clamped input
S
c
: clamped input
2
Multimedia ICs BA7609 / BA7609F
•
Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol Limits Unit
V
CC 9V
500
∗
mW
Topr °C
Tstg °C
Pd
– 40 ~ + 85
– 55 ~ + 125
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
∗
Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
•
Equivalent circuits
R3
13.6k
R4
200
R5
33k
R17
12k
I1
0.6mA
I2
0.3mA
I4
0.6mA
I5
1mA
R7
100
R10
100
R11
100
R13
100
R14
100
R9
200
R6
20k
R12
200
R16
200
R15
200
R2
2.2k
R1
1k
Q4
Q5
Q7 Q8 Q10 Q11
Q12
Q9
Q3
Q2
Q1
OUT
V
CC
IN
Sa, Sb
3
Multimedia ICs BA7609 / BA7609F
Sc
R3
22k
R8
25k
R17
12k
I1
0.6mA
I2
0.3mA
I4
0.6mA
I5
1mA
R7
100
R10
100
R11
100
R13
100
R14
100
R9
200
R12
200
R16
200
R15
200
R2
4k
R1
1k
Q5
Q6
Q7 Q8 Q10 Q11
Q12
Q9
Q3
Q2
Q1
OUT
V
CC
IN
R3
400
R4
400
R5
25k
R2
200
Q3
22
Q1
Q5
Q6
Q2 Q4
CTL
R6
25k
R1
50k
V
CC
I2
0.6mA
I1
0.25mA
I3
0.06mA
CTL
Units
: R = Ω
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