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.

FEATUREs
1. 3 circuits built in, 2-input and 1-output
2. Clamp function
3. Current consumption 9.0mA typ.
4. Operating power supply voltage range 4.6~13.0V
5. Frequency response 10MHz
6. Crosstalk 70dB (at 4.43MHZ)

APPLICATIONs
1. TV
2. VCR
3. Other video equipment