MITSUMI
Video Switch · 75Ω driver · Y/C mix MM1501
· Measurement Procedures (MM1505 ~ MM1508)
Consumption current
I
CC
Connect a DC ammeter to V
CC
pin and measure. Hereafter, short
the ammeter to use.
Input a 2.0V
P-P
(1.0V
P-P
for MM1506 and MM1508), 100kHz sine
wave to SG1. If TP1 voltage is V1 and TP3 voltage is V2, find G
V
using the following formula:
G
V
= 20LOG (V2/V1) dB
In the above GV measurement, if TP3 voltage at 7MHz is V3, find fc
as follows:
fc = 20LOG (V3/V2) dB
Input a 2.0V
P-P
(1.0V
P-P
for MM1506 and MM1508) staircase to SG1
and measure differential gain at TP3.
APL = 10 ~ 90%
The same as for DG, but measure differential phase.
Input a 100kHz sine wave to SG1. Change the amplitude of the sine
wave, and measure V
D
, the maximum amplitude under THD 1%, at TP3.
Measure the DC voltage difference of each switch status at TP2.
VC1 = 2.1V and VC2 = 0.7V. Input a 2.0V
P-P
, 4.43MHz sine wave to
SG1, and operate SW3. IF TP3 voltage when there is an output
signal on the OUT pin is V4, and when there is no signal TP3
voltage is V5, then find C
T
by the following formula:
C
T
= 20LOG (V5/V4) dB
Impress an optional DC voltage on TP6 and TP7. Gradually
increase from VC1 = 0V. When TP7 voltage is output on TP2, TP5
voltage is V
IH
. Gradually lower from VC1 = V
CC
, and when TP6
voltage is output on TP2, TP5 voltage is V
IL
.
Voltage gain
G
V
Frequency characteristic
Differential gain
Differential phase
Output dynamic range
Output offset voltage
fc
DG
DP
V
D
V
OFF
Cross talk
C
T
SW input voltage
V
I
MM1509 ~ MM1510
· Switch Status
Item
Consumption current
Consumption current for PS
PS input voltage L
PS input voltage H
Voltage gain
Symbol
I
CC1
I
CC2
V
IL
V
IH
G
V
Switch status
S1
S2
2
1
2
3
2
1
2
1
Item
Frequency characteristic
Differential gain
Differential phase
Output dynamic range
Symbol
fc
DG
DP
V
D
Switch status
S1
S2
1
1
1
1
1
1
1
1
· Measurement Procedures
Consumption current
Consumption current for PS
I
CC1
I
CC2
Connect a DC ammeter to the V
CC
pin and measure.
Connect a DC ammeter to the V
CC
pin and measure.
Connect a DC ammeter to the V
CC
pin. Gradually lower from VC1 =
V
CC
. VC1 voltage when consumption current is reduced from I
CC1
to
110% of I
CC2
is V
IL
. Gradually raise from VC1 = 0V. VC1 voltage
when consumption current increases from I
CC2
to 90% of I
CC1
is V
IH
.
From here on, short the ammeter when using it.
Input a 1.0V
P-P
, 100kHz sine wave to SG1. If TP1 voltage is V1 and
TP2 voltage is V2, find G
V
by the following formula:
G
V
= 20LOG (V2/V1) dB
In the above G
V
measurement, if TP2 voltage at 7MHz is V3, find fc
by the following formula.
fc = 20LOG (V3/V2) dB
Input a 1.0V
P-P
staircase to SG1 and measure differential gain at
TP2.
APL = 10 ~ 90%
The same as for DG, but measure differential phase.
Input a 100kHz sine wave to SG1. Measure DR, the maximum
amplitude under THD 1%, at TP2.
PS input voltage
V
I
Voltage gain
G
V
fc
Frequency characteristic
Differential gain
Differential phase
Output dynamic range
DG
DP
V
D
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
