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參數(shù)資料
| 型號： | STV9212 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Video Processor for CRT Monitors with PictureBooST |
| 中文描述： | 視頻處理器PictureBooST的CRT顯示器 |
| 文件頁數(shù)： | 18/34頁 |
| 文件大?。?/td> | 335K |
| 代理商： | STV9212 |
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Functional Description
STV9212
18/34
2.10
Signal Waveforms
Figure 18
gives a summary of main signals waveforms.
2.11
Miscellaneous
2.11.1 Stand-by Mode
The device is set in Stand-by mode either by means of bit PASTBYor by lowering the V
CCP
supply
voltage below the V
CCPS
threshold. Once in Stand-by mode, the device does not process the video
signal and its power consumption is significantly reduced. The I2C-bus interface remains
operational. A low level is forced on the AMPCTL output. Refer to
Section 4: Electrical
Specifications
for values.
2.11.2 AMPCTL Output
The AMPCTL is designed to control a video power amplifier. It provides a three-level logical signal
that depends on bits
ASTBY
and
ABLEN
, as well as on the operating mode (stand-by / normal) of
the device.
Figure 19
gives all possible states of the AMPCTL output. Refer to
Section 4: Electrical
Specifications
for electrical parameter values. Pin AMPCTL is of push-pull type. It must not directly
Figure 18: Signal Waveforms
HS
ICP
BLKI
Video input
IN1 (2,3)
FBLK
OSD input
OSD1 (2,3)
Video output
OUT1 (2,3)
O
Black-level
Infra-black
level
C
OCP
C
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