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參數(shù)資料
| 型號： | 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)： | 24/38頁 |
| 文件大?。?/td> | 457K |
| 代理商： | S1D2518X01 |
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S1D2518X01 I
2
C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS
23
Preliminary
Clamp Pulse
The clamp pulse receives its input from the U-Processor and needs a minimum pulse width of 200ns. An active low
signal with a pulse width of 500 to 700ns is recommended. But you can change the clamp pulse polarity using CPS
bit.
If the clamp signal is high during mode change, gm2's clamp operation does not occur. A charge or discharge
occurs in the output clamp cap, caused by the transistor’s leakage component. This results in a change in the
clamp cap's voltage, which can influence the brightness of the screen. Therefore, it is best to supply a low level
clamp signal or a pseudo clamp signal during a transient period like that of mode change.
Cut-Off Control and Cut-off Brightness Control (RCT, GCT, and BCT pins Applications)
This feature, which is an external application for most other products, is built into the IC in S1D2518X. It controls
the CRT bias voltage of each R/G/B channel to adjust the raster white balance. Also set brightness can be
controlled through the same pins. If the set brightness control is not done at G1, the cut-off brightness control is
very useful. Three DACs are needed.
Figure 4. Internal Diagram
It is basically configured as a current mirror.
Cut-off range control through an external pin is decided by the current sinking amount at the RCT/GCT/BCT pins.
Total external cut-off current range
ICT
(Cut-off current)
IBRT
(Cut-off brightness current)
ICS
(offset current)
90uA
170uA
CS1
CS2
ICTX
Pin 17, 18, 19
RED
Cut-off
GREEN
Cut-off
(ICT)
BLUE
Cut-off
Cut-off Brightness
(IBRT)
Cut-off Offset Switch
(ICS)
CS1
CS2
500uA
200uA
170uA
90uA
260uA
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S-1-D-2-D | 制造商:Interconnect Devices Inc (IDI) 功能描述:SPRING CONTACT PROBE |
| S-1-D-2-D D/C .670 OAL | 功能描述:觸點探頭 HEADED RADIUS RoHS:否 制造商:IDI 類型:Probes 尖端類型:Spherical Radius 長度:8.26 mm 電流額定值:10 A 彈力:2.3 oz 行程:1.52 mm 系列:101050 |
| S-1-D-2-G | 制造商:Interconnect Devices Inc (IDI) 功能描述:connectors |
| S-1-D-2-G D/C .670 OAL | 功能描述:觸點探頭 HEADED RADIUS RoHS:否 制造商:IDI 類型:Probes 尖端類型:Spherical Radius 長度:8.26 mm 電流額定值:10 A 彈力:2.3 oz 行程:1.52 mm 系列:101050 |
| S-1-D-3.8-D D/C .670 OAL | 功能描述:觸點探頭 HEADED RADIUS RoHS:否 制造商:IDI 類型:Probes 尖端類型:Spherical Radius 長度:8.26 mm 電流額定值:10 A 彈力:2.3 oz 行程:1.52 mm 系列:101050 |
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