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參數(shù)資料
| 型號： | KB2514 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS |
| 中文描述： | 視頻放大器合并OSD處理器的顯示器 |
| 文件頁數(shù)： | 46/55頁 |
| 文件大?。?/td> | 563K |
| 代理商： | KB2514 |
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VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS
KB2514
45
Preliminary
TUNNING FACTORS OF THE KB2514 PLL
PLL External Circuit
You may follow the recommendations for PCB art work and input/output signal characteristic improvement in
recommendation.
The external circuit that has the most influence on KB2514 PLL block operation is pin 3 (VCO_IN) and pin 4
(CP_OUT)'s surrounding circuit. Refer to OSD PLL block.
Because the PLL circuit is basically a feedback circuit, there are many components that influence the
characteristics. C1, C2, R1, and R2 do not have a localized effect.
As you can see, they are connected to the PLL control bits and influence the characteristics through their
complicated relationships. The main functions of the time canstant and their reference values are as follows.
Figure 19. PLL External Circuit
Table 14. Main Function of Time Constant in PLL External Circuit
Time Canstant
Recommended Value
Main Function
C1
10uF
Influences the damping ratio and controls the PLL
response time
R1
5.6K
(7.5K
)
Same as C1
R2
27K
(or 33K
)
Charge pump current adjustment
C2
33pF
Removes ripple caused by R-C circuit
3
4
R1
R2
C1
C2
1M
5
No Connection
(pin open)
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| KB2541S28 | 功能描述:POT 250K OHM 2W REV LOG TAPER RoHS:是 類別:電位計，可變電阻器 >> 旋轉(zhuǎn) - 對數(shù) 系列:K 標準包裝:25 系列:51 電阻（歐姆）:10k 功率（瓦特）:0.25W，1/4W 容差:±20% 溫度系數(shù):±1000ppm/°C 匝數(shù):單路 旋轉(zhuǎn):290° 調(diào)節(jié)型:側(cè)面調(diào)節(jié) 電阻材料:導(dǎo)電塑料 端接類型:PCB 引腳 觸動器長度:0.875"（22.22mm） 觸動器類型:開槽軸 觸動器直徑:0.125"（3.18mm） 尺寸 - 主體:方形 - 0.350" L x 0.492" W x 0.522" H（8.89mm x 12.50mm x 13.25mm） 安裝類型:通孔 包裝:散裝 |
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| KB-2550CGKD | 制造商:Kingbright Corporation 功能描述:LIGHT BAR GREEN 制造商:Kingbright Corporation 功能描述:LIGHT BAR, GREEN 制造商:Kingbright Corporation 功能描述:LIGHT BAR, GREEN; LED Configuration:Bar; LED Color:Green; Forward Voltage:2.1V; Forward Current If:20mA; No. of LEDs:4; Luminous Intensity:110mcd; Display Size:19.05mm x 3.81mm ;RoHS Compliant: Yes 制造商:Kingbright Corporation 功能描述:LED Light Bar,Green,50mcd,20mA |
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