
MITSUMI
3-Input 1-Output Video Switch (with Y-C mix) MM1188
Measuring Procedures
(Except where noted otherwise, V
CC
=12.0V, VC1=V
CC
, VC2=0V)
Item
Symbol
Switch state
S3
2
Measuring Procedure
S1
2
S2
2
S4
2
S5
2
S6
2
Consumption
current
Id
1
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
2
2
2
2
2
2
2
2
2
2
1
2
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
2
2
2
2
2
2
1
1
1
2
2
2
2
2
2
2
2
1
2
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
2
2
2
2
2
2
2
2
1
1
1
2
2
2
2
2
2
1
1
2
2
2
1
1
2
2
1
1
2
2
1
1
2
2
2
2
2
2
2
2
2
2
2
2
1
1
2
2
2
1
1
2
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
1
1
2
1
1
2
1
2
2
1
2
1
1
2
2
2
1
1
2
2
2
1
1
2
2
1
1
2
2
1
1
2
2
1
2
1
1
2
1
1
2
1
1
2
2
2
Voltage gain
G
V
Frequency
characteristic
F
C
Differential gain
DG
Differential phase
DP
Output offset
voltage
Voff
Crosstalk
C
T
Switch 1 input
voltage H
V
IH
1
Switch 1 input
voltage L
V
IL
1
2
2
2
2
2
1
Switch 2 input
voltage H
V
IH
2
Switch 2 input
voltage L
V
IL
2
3
1
2
2
2
2
A
DR
A
IN1-C input
dynamic
range
3
1
2
2
2
2
B
DR
B
IN1-Y, IN2, IN3
input dynamic
range
2
2
2
1
2
2
2
1
2
2
2
1
2
1
1
2
2
1
DR
C
Connect a DC ammeter to the V
CC
pin and measure. The
ammeter is shorted for use in subsequent measurements.
Input a 1.0V
P
-
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 G
V
measurement, given TP3
voltage for 10MHz as V3, F
C
is obtained from the
following formula.
F
C
=20LOG (V3/V2) dB
Input a 1.0V
P
-
P
staircase wave to SG, and
measure differential gain at TP3.
*
1
APL=10~90%
Proceed as for DG, and measure differential
phase.
*
2
Measure the DC voltage difference of each
switch status at TP2.
Assume VC1=2.3V, VC2=0.9V.
Input a 1.0V
P
-
P
, 4.43MHz sine wave to SG, and
given TP3 voltage during signal output as V4,
switch S5 and S6, and given TP3 voltage for
output OFF as V5, C
T
is obtained from the
following formula.
C
T
=20LOG (V5/V4) dB
Impress an optional DC voltage on TP7 and TP8.
Gradually raise from VC1=0V. TP4 voltage when
TP8 voltage is output on TP2 is V
IH
1. Gradually
lower from VC1=V
CC
. TP4 voltage when TP7
voltage is output on TP2 is V
IL
1.
Impress an optional DC voltage on TP7 and TP9.
Gradually raise from VC1=0V. TP5 voltage when
TP9 voltage is output on TP2 is V
IH
2. Gradually
lower from VC1=V
CC
. TP5 voltage when TP7
voltage is output on TP2 is V
IL
2.
Input a luminance signal as shown in Figure 1 to
SG1, and a chroma signal as shown in Figure 2
to SG2. Change the chroma signal amplitude and
measure the maximum amplitude where there is
no waveform distortion at TP3 and convert to
input amplitude.
Input a luminance signal as shown in Figure 3 to SG1,
and a chroma signal as shown in Figure 2 to SG2.
Change the chroma signal amplitude and measure the
maximum amplitude where there is no waveform
distortion at TP3 and convert to input amplitude.
Input a sine wave to SG1. Measure the maximum
amplitude where there is no waveform distortion
at TP3 and convert to input amplitude.