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參數(shù)資料
| 型號： | M52722 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | 3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX AND RETRACE LINE BLK FOR HIGH-RESOLUTION |
| 中文描述： | 3通道視頻前置放大器帶OSD提供的混合并回朔線座的高分辨率 |
| 文件頁數(shù)： | 8/17頁 |
| 文件大小： | 125K |
| 代理商： | M52722 |
MITSUBISHI ICs (Monitor)
M52722SP
3-CHANNEL VIDEO PREAMPLIFIER PROVIDED WITH OSD MIX
AND RETRACE LINE BLK FOR HIGH-RESOLUTION
8
Oaj1 main OSD adjustment control characteristics (at max.)
and
Oaj1 relative main OSD adjustment control characteristics (at
max.)
1. The conditions shall be as specified in the electrical
characteristics table.
2. Let output signal pedestal voltage of T.P25 (T.P30 or T.P35) be
V
LRA
(V
LGA
or V
LBA
) and voltage in the OSD area be V
HRA
(V
HGA
or V
HBA
).
3. If letting Oaj1 be V
ORA
(V
OGA
or V
OBA
),
Oaj1=V
ORA
(V
OGA
, V
OBA
) = V
HRA
-V
LRA
(V
HGA
-V
LGA
, V
HBA
-V
LBA
)
4. Relative OSD adjustment control characteristics
Oaj1:
Oaj1=V
ORA
/V
OGA
, V
OGA
/V
OBA
, V
OBA
/V
ORA
Oaj2 main OSD adjustment control characteristics (at min.)
and
Oaj2 relative main OSD adjustment control characteristics (at
min.)
Change V36 to 0V, and obtain Oaj2 or
Oaj2 as in the case of Oaj1
or
Oaj1.
OSDth OSD input threshold voltage
1. The conditions shall be as specified in the electrical
characteristics table.
2. Gradually reduce SG6 level at this time, while monitoring the
output, and measure top SG6 level when output is stopped to let
the value be OSDth.
V1th BLK input threshold voltage
1. The conditions shall be as specified in the electrical
characteristics table.
2. Verify at this time that no signal is output with a timing in which
output is synchronized with SG6.
(OSD blanking period)
3. Gradually reduce SG6 level at this time, while monitoring the
output, and measure top SG level when OSD blanking period
expires to let the value be V1th.
SOaj1 SUB OSD adjustment control characteristics (at typ.)
and
SOaj2 SUB OSD adjustment control characteristics (at min.)
1. The conditions shall be as specified in the electrical
characteristics table.
2. Read output amplitude of T.P25 (T.P30 or T.P35) at this time, and
let the reading be V
ORC
(V
OGC
or V
OBC
) to let it be Soaj1 or
Soaj2.
HBLK retrace line BLK characteristics
1. The conditions shall be as specified in the electrical
characteristics table.
2. Monitor output at this time, and read trace line blanking level to
let the reading be H
BLK
.
HVth retrace line BLK input threshold voltage
1. The conditions shall be as specified in the electrical
characteristics table.
2. Verify that blanking is performed with a timing in which output is
synchronized with SG7. Gradually reduce SG7 level, while
monitoring the output, and measure top SG7 level when blanking
period expires to let the reading be HVth.
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