BA7644AN Datasheet, PDF (1/5 Pages) Rohm – Video signal switcher

Multimedia ICs
Video signal switcher
BA7644AN
The BA7644AN is a four-channel analog multiplexer with mute, designed for use in video cassette recorders. It fea-
tures a wide dynamic range, and wide operating frequency range, and is suitable for switching audio and video sig-
nals.
•^Applications
VCR, TV and audio signal switching
•^Features
1) 4-input / 1-output switches.
2) Built-in mute.
3) Wide operating supply voltage range
(4.5V to 13.0V).
4) Low power consumption (48mW Typ.).
5) Excellent frequency characteristics
(10MHz, 0dB Typ.).
6) Wide dynamic range (3.5VP-P Typ.).
7) High input impedance (20kΩ Typ.).
8) Low interchannel crosstalk
( – 65dB Typ., f = 4.43MHz).
•^{Absolute maximum ratings (Ta = 25°C)}
Parameter
Symbol
Limits
Unit
Power supply voltage
VCC
Power dissipation
Pd
13.5
V
850^∗
mW
Operating temperature
Topr
– 25 ~ + 75
°C
Storage temperature
Tstg
– 55 ~ + 125
°C
∗ Reduced by 8.5mW for each increase in Ta of 1°C over 25°C.
•^{Block diagram}
MUTE
LOGIC
1 2 3 4 5 6 7 8 9 10
•^{Truth table}
CTL - A
CTL - B
L (OPEN) L (OPEN)
L (OPEN)
H
H
L (OPEN)
H
H
∗
∗
∗ Either "L (open)" or "H".
CTL - C
L (OPEN)
L (OPEN)
L (OPEN)
L (OPEN)
H
OUT
IN1
IN2
IN3
IN4
MUTE
1