參數(shù)資料
型號(hào)： M52734
廠商： Mitsubishi Electric Corporation
英文描述： 3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING
中文描述： 3，帶OSD消隱通道視頻功放
文件頁數(shù)： 5/13頁
文件大小： 100K
代理商： M52734
MITSUBISHI ICs (Monitor)
M52734SP
3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING
5
3. After setting V
TR
(V
TG
or V
TB
), increase the SG6 amplitude
gradually, starting from 700mV. Measure the amplitude when the
top and bottom of the waveform output at T.P25 (30 or starts
becoming distorted synchronously.
Vimax Maximum input
Measuring conditions are the same as those used above, except
that the setting of V17 is changed to 2.5V as specified in
Supplementary Table. Increase the input signal amplitude gradually,
starting from 700mV
P-P
.
Measure the amplitude when the output
signal starts becoming distorted.
Gv Maximum gain
Gv Relative maximum gain
1. Input SG6 to pin 13 (8 or 3), and read the amplitude at output
T.P25 (30 or 35). The amplitude is called V
OR1
(V
OG1
or V
OB1
) .
2. Maximum gain G
V
is calculated by the equation below:
3. Relative maximum gain
G is calculated by the equation below:
G
V
=V
OR1
/V
OG1
, V
OG1
/V
OB1
, V
OB1
/V
OR1
V
CR1
Contrast control characteristics (typical)
V
CR1
Contrast control relative characteristics (typical)
1. Measuring conditions are as given in Supplementary Table.
The setting of V17 is changed to 4V.
2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called V
OR2
(V
OG2
or V
OB2
).
3. Contrast control characteristics V
CR1
and relative characteristics
V
CR1
are calculated, respectively, by the equations below:
V
CR1
=V
OR2
/V
OG2
, V
OG2
/V
OB2
, V
OB2
/V
OR1
V
CR2
Contrast control characteristics (minimum)
V
CR2
Contrast control relative characteristics (minimum)
1. Measuring conditions are as given in Supplementary Table.
The setting of V17 is changed to 1.0V.
2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called V
OR3
(V
OG3
or V
OB3
), and is treated as V
CR2
.
3. Contrast control relative characteristics
V
CR2
are calculated by
the equation below:
V
CR2
=V
OR3
/V
OG3
, V
OG3
/V
OB3
, V
OB3
/V
OR3
V
SCR1
Sub contrast control characteristics (typical)
V
SCR1
Sub contrast control relative characteristics (typical)
1. Set V4, V9 and V14 to 4.0V. Other conditions are as given in
Supplementary Table.
2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called V
OR4
(V
OG4
or V
OB4
).
3. Sub contrast control characteristics V
SCR1
and relative
characteristics
V
SCR1
are calculated, respectively, by the
equations below:
V
OR4
(V
OG4
, V
OB4
)
V
SCR1
=20LOG
V
SCR1
=V
OR4
/V
OG4
, V
OG4
/V
OB4
, V
OB4
/V
OR4
V
SCR2
Sub contrast control characteristics (minimum)
V
SCR2
Sub contrast control relative characteristics (minimum)
1. Set V4, V9 and V14 to 1.0V. Other conditions are as given in
Supplementary Table.
2. Measure the amplitude output at T.P25 (30 or 35). The measured
value is called V
OR5
(V
OG5
or V
OB5
).
3. Relative characteristics
V
SCR2
are calculated by the equation
below:
V
SCR2
=V
OR5
/V
OG5
, V
OG5
/V
OB5
, V
OB5/
V
OR5
V
SCR3
Contrast/sub contrast control characteristics (typical)
V
SCR3
Contrast/sub contrast control relative
characteristics (typical)
1. Set V4, V9, V14 and V17 to 3.0V. Other conditions are as given
in Supplementary Table.
2. Measure the amplitude at T.P25 (30 or 35). The measured value
is called V
OR6
(V
OG6
or V
OB6
).
V
CR3
=V
OR6
/V
OG6
, V
OG6
/V
OB6
, V
OB6
/V
OR6
V
B1
Brightness control characteristics (maximum)
V
B1
Brightness control relative characteristics (maximum)
1. Measuring conditions are as given in Supplementary Table.
2. Measure the output at T.P25 (30 or 35) with a voltmeter.
The measured value is called V
OR7
(V
OG7
or V
OB7
), and is treated
as V
B1
.
3. To obtain brightness control relative characteristics, calculate the
difference in the output between the channels, using V
OR7
, V
OG7
and V
OB7
.
V
B1
=V
OR7
-V
OG7
[mV]
=V
OG7
-V
OB7
=V
OB7
-V
OR7
V
OR1
(V
OG1
, V
OB1
)
0.7
[V
P-P
]
[V
P-P
]
G
V
=20LOG
V
OR2
(V
OG2
, V
OB2
)
0.7
[V
P-P
]
[V
P-P
]
V
CR1
=20LOG
0.7
[V
P-P
]
[V
P-P
]
V
OR6
(V
OG6
, V
OB6
)
0.7
[V
P-P
]
[V
P-P
]
V
CR3
=20LOG
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