MITSUMI
2-Input 1-Output 3-Circuit Video Switch MM1231~1234
2-Input 1-Output 3-Circuit Video Switch
Monolithic IC MM1...
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
Model name MM1231 MM1232 MM1233 MM1234 # of Inputs 2 2 2 2 # of Outputs 1 1 1 1 Clamp circuit No 1 input 2 input 3 input Power supply
voltage 4.6~13.0V 4.6~13.0V 4.6~13.0V 4.6~13.0V
MM1231~MM1234 Input/Output
Voltage Measurement Values (typ.)
Model name Input / Output
voltage Input
voltage Output
voltage Input
voltage MM1232 Output
voltage Input clamp Output
voltage Input
voltage MM1233 Output
voltage Input clamp Output
voltage MM1234 Input clamp Output
voltage Power supply
voltage 5V 2.80 2.01 2.80 2.10 1.40 0.70 2.80 2.10 1.40 0.70 1.40 0.70 9V 5.00 4.30 5.00 4.30 2.50 2.20 5.00 4.30 2.50 2.20 2.50 2.20 12V 6.70 6.00 6.70 6.00 3.30 2.90 6.70 6.00 3.30 2.90 3.30 2.90 Unit V V V V V V V V V V V V
MM1231
MITSUMI
2-Input 1-Output 3-Circuit Video Switch MM1231~1234
Block Diagram
MM1231
(MM1231~MM1234) MM1232
MM1233
MM1234
Control input truth table SW L OUT IN1A IN2A IN3A IN1B H IN2B IN3B
MITSUMI
2-Input 1-Output 3-Circuit Video Switch MM1231~1234
Introduction of Main Model
2-Input 1-Output 3-Circuit Video Switch
Monolithic IC MM123...