參數(shù)資料
型號: ST72774S9T1
廠商: 意法半導(dǎo)體
元件分類: ADC
英文描述: 8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C
中文描述: 8位USB單片機(jī)的顯示器,高達(dá)60K章檢察官辦公室,每1000內(nèi)存,模數(shù)轉(zhuǎn)換器,定時器,同步,材質(zhì)單元,脈寬調(diào)制/的BRM,的H / W DDC的
文件頁數(shù): 60/144頁
文件大?。?/td> 1280K
代理商: ST72774S9T1
ST72774/ST727754/ST72734
60/144
Figure 41. Moire Output (instead of Clamping Output)
4.4.5.1 Blanking output signal
The Video Blanking function uses VSYNCO,
HFBACK, VFBACK as input signals and
BLANKOUT output as Video Blanking Output. This
output pin is a 5V open-drain output and can be
AND-wired with any external video blanking signal.
Note:
HFBACK, VFBACK, VSYNCO signals must have
positive polarity.
To use the video blanking signal:
– Program the polarity:
BLKINV bit in POLR register
– Enable the BLANKOUT output:
BLKEN bit in ENR register
Figure 42. Video Blanking Stage Simplified Schematic
HFBACK
Moire
VFBACK
BLANKOUT
BLKEN
HFBACK
VFBACK
VSYNCO
To Edge detector (LATR)
R
S
To Edge detector (LATR)
BLKINV
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