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參數(shù)資料
| 型號(hào)： | MM1238 |
| 廠商： | MITSUMI ELECTRIC |
| 英文描述： | 3-Input 2-Output 3-Circuit Video Switch |
| 中文描述： | 3路輸入2輸出3 -電路視頻開(kāi)關(guān) |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大?。?/td> | 94K |
| 代理商： | MM1238 |
MITSUMI
3-Input 2-Output 3-Circuit Video Switch MM1238
Input impedance
V
IN
R
IV
R
IR
R
IL
V
IN
1~V
IN
3
R
IN
1~R
IN
3
L
IN
1~L
IN
3
15
68
68
k
k
k
R
IN
L
IN
Output impedance
V
OUT
V
OV
V
OR
V
OL
V
OUT
2
50
50
50
R
OUT
R
OUT
1 and R
OUT
2
L
OUT
1 and L
OUT
2
L
OUT
Crosstalk
V
IN
V
OUT
CT
VV
CT
RR
CT
LL
CT
RV
CT
LV
SG2 : 1V
P
-
P
, 4.43MHz
*
1
SG3 : 2.5V
P
-
P
, 1kHz
*
2
SG1 : 2.5V
P
-
P
, 1kHz
*
3
SG2 : 1V
P
-
P
, 100kHz
*
4
SG2 : 1V
P
-
P
, 100kHz
*
5
-
60
-
50
-
80
-
70
-
80
-
70
-
70
-
60
-
70
-
60
dB
dB
dB
dB
dB
R
IN
R
OUT
L
IN
L
OUT
V
IN
R
OUT
V
IN
L
OUT
Switch input voltage
SW input voltage H
V
IH
V
IL
Switching H level for each IC SW
Switching L level for each IC SW
2.1
V
V
SW input voltage L
0.7
Input dynamic range
V
IN
V
OUT
D1
V
CC
=12V, SG1 : sine wave, 1kHz
V
CC
=12V, SG2 : sine wave, 1kHz
Total higher harmonic
distortion=0.5%
V
CC
=12V, SG3 : sine wave, 1kHz
Total higher harmonic
distortion=0.5%
2.6
V
P
-
P
R
IN
R
OUT
D2
2.0
Vrms
L
IN
L
OUT
D3
2.0
Vrms
*
1 Crosstalk (V
IN
Input a 1V
P
-
P
, 4.43MHz sine wave to SG2.
Obtain C
TVV
using the following formula given output amplitude for combinations other than those below
for SW control pin as V
O
1, and for the combinations below as V
O
2.
C
TVV
=20 log (V
O
2/V
O
1) dB
V
OUT
)
1. C
TVV
1
Measuring pin
Switch status
S2
A
A
A
B
B
B
C
C
C
V1
L
H
H
L
L
H
L
L
H
V2
L
L
H
L
H
H
L
H
L
V3
L
L
L
H
H
H
H
H
H
V4
H
H
H
L
L
L
H
H
H
TP8
2. C
TVV
2
Measuring pin
Switch status
S2
A
A
A
B
B
B
C
C
C
V1
L
L
L
H
H
H
H
H
H
V2
H
H
H
L
L
L
H
H
H
V3
L
H
H
L
L
H
L
L
H
V4
L
L
H
L
H
H
L
H
L
TP3
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