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參數(shù)資料
| 型號： | M52737SP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | 3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING |
| 中文描述： | 3，帶OSD混合，折回消隱通道視頻前置放大器 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大小： | 119K |
| 代理商： | M52737SP |
MITSUBISHI ICs (Monitor)
M52737SP
3-CHANNEL VIDEO PREAMPLIFIER WITH OSD MIXING, RETRACE BLANKING
6
V
B3
Brightness control characteristics (minimum)
V
B3
Brightness control relative characteristics (minimum)
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
B2
.
3. To obtain brightness control relative characteristics (
V
B3
),
calculate the difference in the output between the channels,
using V
OR7"
, V
OG7"
and V
OB7"
.
V
B3
=V
OR7''
-V
OG7''
[V]
=V
OG7''
-V
OB7''
=V
OB7''
-V
OR7''
F
C1
Frequency characteristics1
(f=50MHz; maximum)
F
C1
Frequency relative characteristics1
(f=50MHz; maximum)
F
C1
' Frequency characteristics1 (f=150MHz; maximum)
F
C1
' Frequency relative characteristics1
(f=150MHz; maximum)
1. Measuring conditions are as given in Supplementary Table.
2. First, SGA is as input signal. Input a resister that is about 2K
to
offer the voltage at input pins (Pin 3, Pin 8, Pin 13) in order that
the bottom of input signal is 2.5V.
Inputs the voltage at hold pins (Pin 23, Pin 28, Pin 33) in order
that the bottom of sine wave output is 2V.
Control the MAIN CONTRAST (V17) in order that the amplitude
of sine wave output is 4.0V
P-P
.
By the same way, measure the output amplitude when SG1,
SG2 is as input signal.
3. Supposing that the measured value is treated as amplitude V
OR8
(V
OG8
or V
OB8
) when SG1 is input, or as V
OR9
(V
OG9
or V
OB9
)
when SG2 is input, frequency characteristics F
C1
and F
C1'
are
calculated as follows:
4. Frequency relative band widths
F
C1
and
F
C1'
are equal to the
difference in F
C1
and F
C1'
, respectively, between the channels.
F
C2
Frequency characteristics2
(f=150MHz; maximum)
F
C2'
Frequency relative characteristics2
(f=150MHz; maximum)
Measuring conditions and procedure are the same as described in
F
C1
,
F
C1
, F
C1'
,
F
C1'
, except that Control the MAIN CONTRAST
(V17) in order that the amplitude of sine wave output is 1.0V
P-P
.
C.T.1 Crosstalk1 (f=50MHz)
C.T.1' Crosstalk1 (f=150MHz)
1. Measuring conditions are as given in Supplementary Table.
2. Input SG1 (or SG2) to pin 13 (R-ch) only, and then measure the
waveform amplitude output at T.P25 (30 or 35). The measured
value is called V
OR
, V
OG
and or V
OB
respectively.
3. Crosstalk C.T.1 (C.T.1') is calculated by the equation below:
C.T.2 Crosstalk2 (f=50MHz)
C.T.2' Crosstalk2 (f=150MHz)
1. Change the input pin from pin 8 (G-ch), and measure the output
in the same way as in C.T.1, C.T.1'.
2. Crosstalk C.T. 2 (C.T.2') is calculated by the equation below:
C.T.3 Crosstalk3 (f=50MHz)
C.T.3' Crosstalk3 (f=150MHz)
1. Change the input pin from pin 13 (R-ch) to pin 3 (B-ch), and
measure the output in the same way as in C.T.1, C.T.1'.
2. Crosstalk C.T. 3 (C.T.3') is calculated by the equation below:
Tr Pulse characteristics1
Tf Pulse characteristics2
1. Measuring conditions are as given in Supplementary Table.
Control the MAIN CONTRAST(V17) in order that the amplitude
of output signal is 4.0V
P-P
. Control the BRIGHTNESS(V19) in
order that the Black level of output signal is 2.0V.
2. Measure the time needed for the input pulse to rise from 10% to
90% (Tr1) and to fall from 90% to 10% (Tf1)with an active prove.
3. Measure the time needed for the output pulse to rise from 10%
to 90% (Tr2) and to fall from 90% to 10% (Tf2) with an active
prove.
4. Pulse characteristics Tr and Tf are calculated by the equation
below:
Tr (nsec)= (Tr2)
2
-(Tr1)
2
Tf (nsec)= (Tf2)
2
-(Tf1)
2
V
OR8
(V
OG8
, V
OB8
) [V
P-P
]
4.0 [V
P-P
]
F
C1
=20LOG
V
OR9
(V
OG9
, V
OB9
) [V
P-P
]
4.0 [V
P-P
]
F
C1
'=20LOG
V
OG
or V
OB
[V
P-P
]
V
OR
[V
P-P
]
[dB]
C.T.1 =20LOG
(C.T.1')
V
OR
or V
OB
[V
P-P
]
V
OG
[V
P-P
]
[dB]
C.T.2 =20LOG
(C.T.2')
V
OR
or V
OG
[V
P-P
]
V
OB
[V
P-P
]
[dB]
C.T.3 =20LOG
(C.T.3')
100%
90%
0%
10%
Tr1 or Tr2
Tf1 or Tf2
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