參數(shù)資料
型號(hào): S1D2518X01
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
元件分類: 視頻放大器
英文描述: DB25 RJ11,4 WIRE ONLY. FEMAL
中文描述: 的I2C總線控制轉(zhuǎn)/克/乙視頻放大器
文件頁數(shù): 29/38頁
文件大?。?/td> 457K
代理商: S1D2518X01
I
2
C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS S1D2518X01
28
Preliminary
Case 2. 12V Pull-up
In above picture, cut-off IC input is 0.3V to 4.25V.
So, all kinds of cut-off IC using 0 - 5V input range can be used.
Cut-off IC input voltage (cut-off brightness register : 00H)
4.25V : Cut-off register 00H
1.40V : Cut-off register FFH
Cut-off IC input voltage (cut-off register : 00H)
4.25V : Cut-off Brightness register 00H
2.85V : Cut-off Brightness register FFH
ABL
The ABL detects the amount of current flowing into the CRT cathode to lower the brightness of the screen. The
S1D2518X uses the ABL pin’s feedback voltage to control the contrast.
The lower the ABL input voltage, weaker the video signal.
When open, the ABL is floated to 12V and doesn’t operated.
When S1D2518X’s ABL function is not being used, the ABL pin is connected to a cap in a series to connect to the
GND.
Ripple extract capacitor must be used. It’s value depends on the set characteristics, but normally it uses 1uF -
10uF/16V.
For white
balance conrol
0.3V
For bright control
1.3V
5V
S1D2518X
Generic
Cut off IC
RCT
0.2k
12V
18k
43k
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