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參數(shù)資料
| 型號： | HA11560 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | VCR/VDP RF Modulator |
| 中文描述： | 錄像機(jī)/可變數(shù)據(jù)印刷射頻調(diào)制器 |
| 文件頁數(shù)： | 5/10頁 |
| 文件大小： | 72K |
| 代理商： | HA11560 |
Block Operation Descriptions
The following describes the operation of each
block and external circuits.
Video Clamp
The video clamp circuit employs a sync peak value
clamp. Input impedance is at a level of
approximately 30 k
to reduce compression of the
sync pulse. Note that sag is generated in the sync
pulse when a capacitor of 0.47 μF or lower is used
for C10 at pin 16.
Figure 1 Video Input Circuit
White Clip Circuit
The white clip level is set to 92.5%. A circuit that
produces a sharp white clip is used in order to
produce high linearity characteristics for the video.
Increasing the white clip frequency characteristic
by another 5 MHz eliminates video carrier cutoff
by the chroma signal and prevents deterioration of
audio buzz characteristics.
Figure 2 White Clip Characteristics
16
White clip
circuit
Video in
C10
1 μF
+
HA11560
white clip
characteristics
Normal
white clip
characteristics
White clip level
5
HA11560FP/T
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA11560FP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:VCR/VDP RF Modulator |
| HA11560FP/T | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:VCR/VDP RF Modulator |
| HA11560T | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:VCR/VDP RF Modulator |
| HA11580 | 制造商:Panasonic Industrial Company 功能描述:I.C. |
| HA11585FPEL | 制造商:HITACHI 功能描述:* |
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