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PDF BA7644 Data sheet ( Hoja de datos )
| Número de pieza | BA7644 | |
| Descripción | Video signal switcher | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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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
Power supply voltage
VCC
Power dissipation
Pd
Operating temperature
Topr
Storage temperature
Tstg
∗ Reduced by 8.5mW for each increase in Ta of 1°C over 25°C.
Limits
13.5
850∗
– 25 ~ + 75
– 55 ~ + 125
Unit
V
mW
°C
°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)
HH
∗∗
∗ Either "L (open)" or "H".
CTL - C
L (OPEN)
L (OPEN)
L (OPEN)
L (OPEN)
H
OUT
IN1
IN2
IN3
IN4
MUTE
1
1 page  
Multimedia ICs
BA7644AN
•Electrical characteristic curves
10
9
8 VCC = 12V
7 VCC = 9V
6
5
4 VCC = 5V
3
2
1
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE: VIN (VP-P)
Fig. 2 VIN vs. VOUT (f = 1kHz)
4
2
0
–2
–4
100k 300k
1M 3M 10M 30M
FREQUENCY: f (Hz)
100M
Fig. 3 Frequency characteristics
20
0
– 20
– 40
– 60
– 80
100k 300k 1M 3M 10M 30M 100M
FREQUENCY: f (Hz)
Fig. 4 Interchannel crosstalk
•External dimensions (Units: mm)
25.2 ± 0.2
2.8 ± 0.2
1
2.54
10
0.6
0.8 0.3 ± 0.1
1.3
SIP10
5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet BA7644.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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