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Mitsumishi |
MITSUMI
2-Input 2-Output Video Switch MM1120
2-Input 2-Output Video Switch
Monolithic IC MM1120
Outline
This is a 2-input, 2-output 3-circuit high performance video switch IC for video/audio signal switching. It is
ideal for use in TV/BS switching.
Features
1. 1 video signal circuit, 2 audio signal circuits
2. 1 built-in 75Ω driver circuit
3. Current consumption
17mA typ.
4. Operating power supply voltage range 9~12V
5. Frequency response
10MHz (VOUT1), 7MHz (VOUT2)
6. Crosstalk
Video signal circuit : 60dB (at 4.43MHz)
Audio signal circuit : 80dB (at 1kHz)
Package
SSOP-16A (MM1120XF)
Applications
1. TV with built-in BS
Block Diagram
Control input truth table
SW1
L
L
H
H
SW2
L
H
L
H
OUT1
IN2
IN2
IN1
IN1
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OUT1
IN2
IN2
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IN1
MITSUMI
Pin Description
Pin no.
1
3
Pin name
VIN
Function
Video input
2-Input 2-Output Video Switch MM1120
Internal equivalent circuit diagram
2
SW
9
Switch
4 GND
5
RIN
6
and
7
LIN
8
Ground
Audio input
10
ROUT
11
and
12
LOUT
13
Audio output
14 VOUT1
Video output 1
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