MITSUMI

2-Input 1-Output 3-Circuit Video Switch MM1231~1234

2-Input 1-Output 3-Circuit Video Switch

Monolithic IC MM1231~1234

Outline

This is serial 2-input, 1-output, 3-circuit video switch IC for video / audio signal switching with and without

clamp circuit.

Circuit configuration tables and block diagrams are as follows.

MM1234 is used as the representative model in this description.

MM1231~MM1234 Series Circuit Configuration Table

MM1231~MM1234 Input/Output Voltage Measurement Values (typ.)

Model name

# of Inputs

# of Outputs

Clamp circuit

Power supply voltage

MM1231

2

1

No

4.6~13.0V

MM1232

2

1

1 input

4.6~13.0V

MM1233

2

1

2 input

4.6~13.0V

MM1234

2

1

3 input

4.6~13.0V

Model name

Input / Output

Power supply voltage

Unit

voltage

5V

9V

12V

MM1231

Input voltage

2.80

5.00

6.70

V

Output voltage

2.01

4.30

6.00

V

Input voltage

2.80

5.00

6.70

V

MM1232

Output voltage

2.10

4.30

6.00

V

Input clamp

1.40

2.50

3.30

V

Output voltage

0.70

2.20

2.90

V

Input voltage

2.80

5.00

6.70

V

MM1233

Output voltage

2.10

4.30

6.00

V

Input clamp

1.40

2.50

3.30

V

Output voltage

0.70

2.20

2.90

V

MM1234

Input clamp

1.40

2.50

3.30

V

Output voltage

0.70

2.20

2.90

V