2-Input 1-Output Video Switch (W/75Ω driver)/3-Input 1-Output Video Switch (W/75Ω driver) MM1221~1228
MITSUMI
2-Input 1-Output Video Switch (W/75Ω driver)/3-Input 1-Output Video Switch (W/75Ω driver)
Monolithic IC MM1221~MM1228
November 2, 2001
Outline
These ICs are high-end video switch ICs with 2-input 1-output or 3-input 1-output including a 75Ω driver. The
series includes those with and without a built-in clamp circuit and a 6dB amp.
The circuit configuration table and block diagram are shown below.
MM1228 is introduced as a representative model in this document.
MM1221~MM1228 Series Circuit Configuration Table
Model name
MM1221
MM1222
MM1223
MM1224
MM1225
MM1226
MM1227
MM1228
# of Inputs
# of Outputs
6dB amp circuit
Clamp circuit
Power supply voltage range
8~13V
2
2
3
3
2
2
3
3
1
1
1
1
1
1
1
1
No
Yes
No
No
No
8~13V
No
8~13V
Yes
No
No
8~13V
Yes
Yes
Yes
Yes
4.7~13V
4.7~13V
4.7~13V
4.7~13V
Yes
No
Yes
MM1221~MM1228 Input/Output Voltage Measurement Values (typ.)
Power supply
Model name
MM1221
MM1222
MM1223
MM1224
MM1225
MM1226
MM1227
MM1228
5V
9V
12V
Unit
voltage
Input voltage
Output voltage
Input voltage
Output voltage
Input voltage
Output voltage
Input voltage
Output voltage
Input voltage
Output voltage
Input voltage
Output voltage
Input voltage
Output voltage
Input voltage
Output voltage
4.53
4.5
6.05
6.1
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
4.05
5.34
4.53
4.5
5.4
7.12
6.05
6.1
4.05
5.34
2.17
2.25
2.2
5.4
7.12
2.86
2.96
2.9
1.27
1.31
1.3
1.4
2.23
2.17
2.25
2.2
2.88
2.86
2.96
2.9
1.27
1.31
1.3
1.4
2.23
2.88
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
