2-Input 1-Output Video Switch (W/75Ω driver)/3-Input 1-Output Video Switch (W/75Ω driver) MM1221~1228
MITSUMI
(VCC=5.0V, VC1=VCC, VC2=0V)
Measuring Procedures
Switch state
Item
Symbol
Measuring Procedure
S1 S2 S3 S4 S5
Consumption
current
2
2
2
2
2
Connect a DC ammeter to the VCC pin and measure. The
ammeter is shorted for use in subsequent measurements.
Id
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
2
2
2
1
1
1
2
2
2
2
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
2
2
2
2
2
1
1
1
2
2
2
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
2
2
2
2
2
2
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
1
2
1
2
2
1
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
2
1
1
2
1
1
2
2
2
Input a 1.0VP P, 100kHz sine wave to SG, and obtain GV
from the following formula given TP1 voltage as V1
and TP3 voltage as V2.
GV=20LOG (V2/V1) dB
For the above GV measurement, given TP3 voltage for
7MHz as V3, FC is obtained from the following formula.
-
Voltage gain
Gv
FC
Frequency
characteristic
FC=20LOG (V3/V2) dB
Input a 1.0VP
differential gain at TP4.
APL=10~90%
-P staircase wave to SG, and measure
Differential gain
DG
Differential phase
DP
Proceed as for DG, and measure differential phase.
Output offset
voltage
Measure the DC voltage difference of each switch
status at TP2.
Voff
Assume VC1=2.1V, VC2=0.7V.
Input a 1.0VP P, 4.43MHz sine wave to SG, and given
-
Crosstalk
CT
TP1 voltage as V4 and TP3 voltage as V5, CT is
obtained from the following formula.
CT=20LOG (V5/V4) dB
Switch 1 input
voltage H
Impress an optional DC voltage on TP7 and TP8.
Gradually raise from VC1=0V. TP5 voltage when TP8
voltage is output on TP2 is VIH1. Gradually lower from
VC1=VCC. TP5 voltage when TP7 voltage is output on
TP2 is VIL1.
VIH1
VIL1
VIH2
VIL2
Switch 1 input
voltage L
2
2
2
2
1
Switch 2 input
voltage H
Impress an optional DC voltage on TP7 and TP9.
Gradually raise from VC1=0V. TP5 voltage when TP9
voltage is output on TP2 is VIH2. Gradually lower from
VC1=VCC. TP6 voltage when TP7 voltage is output on
TP2 is VIL2.
Switch 2 input
voltage L
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
