MITSMI MM1250XD Datasheet
MITSUMI
I
2
C Bus Video Switch MM1250
I2C Bus Video Switch
Monolithic IC MM1250
Outline
This IC is an audio/video switch that supports an I2C bus for television.
Features
1. Utilizes serial control by I2C bus
2. 3 video input systems for 3 outputs, V
OUT, YOUT and COUT
3. VOUT has built-in 6dB amp
4. V
OUT has built-in output clamp circuit
5. Audio system has built-in mute function
6. 1 output port built-in
7. Operating power supply voltage range 8~13V
8. Video frequency response 10MHz
9. Slave address 92H (fixed)
Package
SDIP-24A (MM1250XD)
Applications
I2C bus televisions, etc.
MITSUMI
I
2
C Bus Video Switch MM1250
Block Diagram
Fig. 1 Block Diagram
Absolute Maximum Ratings
(Ta=25°C)
Item Symbol Ratings Units
Storage temperature T
STG
-
40~+125 °C
Operating temperature T
OPR
-
20~+75 °C
Power supply voltage V
CC 15 V
Allowable loss Pd 1000 mW
MITSUMI
I
2
C Bus Video Switch MM1250
Item
Symbol
Measurement
Measurement conditions Min. Typ. Max. Units
circuit
Operating power supply voltage
VCC VCC 8.0 13.0 V
Consumption current I
CC VCC=9V 17 25 33 mA
V
OUT output
Voltage gain
G
V1 TP9
SG1 : sine wave 1V
P-P, 0.1MHz 5.5 6.0 6.5 dB
G
V2 TP7
Frequency characteristic
F
V1 TP9 SG1 : sweep signal, 1VP-P
FV2 TP7 10MHz/0.1MHz
-
1.0 0 1.0 dB
Differential gain
DG
V1 TP9 SG1 : staircase wave, 1VP-P
DGV2 TP8 APL=10, 50, 90%
-
30 3 %
Differential phase
DP
V1 TP9 SG1 : staircase wave, 1VP-P
DPV2 TP8 APL=10, 50, 90%
-
3 0 3 deg
Input dynamic
D
V1 TP9
SG1 : range sine wave, 1kHz 2.1 V
P-P
DV2 TP8
Output offset voltage V
OFFV TP9
V
OUT
1 pin DC level difference during switching
0 ±30 mV
Input impedance Z
IV VTV, VE1, VE2101520kΩ
Output impedance Z
OV2102030Ω
Y
OUT output
Voltage gain
G
Y1 TP1 SG1 : sine wave, 1VP-P, 0.1MHz 5.5 6.0 6.5 dB
G
Y2 TP1 SG6 : sine wave, 2VP-P, 0.1MHz
-
0.5 0 0.5 dB
F
Y1 TP1
SG1 : sweep signal, 1V
P-P
Frequency characteristic
10MHz/0.1MHz
-
1.0 0 1.0 dB
F
Y2 TP1
SG6 : sweep signal, 2V
P-P
10MHz/0.1MHz
-
1.0 0 1.0 dB
Differential gain DG
Y TP2
SG1 : staircase wave, 1V
P-P
APL=10, 50, 90%
-
30 3 %
Differential phase DP
Y TP2
SG1 : staircase wave, 1V
P-P
APL=10, 50, 90%
-
3 0 3 deg
Input dynamic range
D
Y1 TP1
SG6 :
sine wave
, 1kHz, Comp mode
4.2
V
P-P
DY2 TP1
SG1 : sine wave, 1kHz, TH•S mode
2.1
Output offset voltage V
OFFY TP1
Y
OUT
1 pin DC level difference during switching
0 ±30 mV
Input impedance Z
IY YIN 10 15 20 kΩ
Output impedance Z
OY 81522Ω
C
OUT output
G
C1 TP4 SG1 : sine wave, 1VP-P, 0.1MHz 5.5 6.0 6.5 dB
Voltage gain G
C2 TP4 SG2 : sine wave, 1VP-P, 0.1MHz 5.5 6.0 6.5 dB
G
C3 TP4 SG5 : sine wave, 2VP-P, 0.1MHz
-
0.5 0 0.5 dB
F
C1 TP4
SG1 : sweep signal, 1V
P-P
, 10MHz/0.1MHz-1.0 0 1.0 dB
Frequency characteristic F
C2 TP4
SG2 : sweep signal, 1V
P-P
, 10MHz/0.1MHz-1.0 0 1.0 dB
F
C3 TP4
SG5 : sweep signal, 2V
P-P
, 10MHz/0.1MHz-1.0 0 1.0 dB
Differential gain DG
C TP5
SG1 : staircase wave, 1V
P-P
APL=10, 50, 90%
-
30 3 %
Differential phase DP
C TP5
SG1 : staircase wave, 1V
P-P
APL=10, 50, 90%
-
3 0 3 deg
D
C1 TP4
SG5 :
sine wave
, 1kHz, COMP mode
4.2
Input dynamic range D
C2 TP4 SG1 : sine wave, 1kHz, TH
mode
2.1 VP
-
P
DC3 TP4 SG2 : sine wave, 1kHz, S
mode
2.1
Output offset voltage V
OFFC TP4
C
OUT
1 pin DC level difference during switching
0 ±30 mV
Input impedance Z
IC CIN 10 15 20 kΩ
Output impedance Z
OC 81522Ω
Electrical Characteristics
(Except where noted otherwise, Ta=25°C, VCC=8V~13V)
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