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參數(shù)資料
| 型號： | BT457KPJ80 |
| 英文描述： | Video DAC with Color Palette (RAMDAC) |
| 中文描述： | 視頻DAC的調(diào)色板（的RAMDAC） |
| 文件頁數(shù)： | 25/60頁 |
| 文件大?。?/td> | 647K |
| 代理商： | BT457KPJ80 |
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L45801 Rev. N
Conexant
3-1
3
3.0 PC Board Layout Considerations
3.1 PC Board Considerations
The Bt457 and Bt458 layouts should be optimized for lowest noise on their power
and ground lines by shielding the digital inputs and providing good decoupling.
The trace length between groups of VAA and GND pins should be as short as
possible to minimize inductive ringing.
A well-designed power distribution network is critical to eliminate digital
switching noise. The ground plane must provide a low-impedance return path for
the digital circuits. A PC board with a minimum of six layers is recommended.
The ground layer is used as a shield to isolate noise from the analog traces with
layer 1 (top) the analog traces, layer two the ground plane, layer three the analog
power plane, and the remaining layers used for digital traces and digital power
supplies.
The optimum layout enables the Bt457 and Bt458 to be located as close as
possible to the power supply connector and the video output connector.
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相關(guān)代理商/技術(shù)參數(shù) |
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| BT458KG110 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC) |
| BT458KG125 | 制造商: 功能描述: 制造商:undefined 功能描述: 制造商:BROOKTREE 功能描述: |
| BT458KG135 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC) |
| BT458KG80 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC) |
| BT458LG165 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC) |
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