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DM385 参数 Datasheet PDF下载

DM385图片预览
型号: DM385
PDF下载: 下载PDF文件 查看货源
内容描述: DM385和DM388 DaVincia ? ¢数字媒体处理器 [DM385 and DM388 DaVinci™ Digital Media Processor]
分类和应用:
文件页数/大小: 280 页 / 2479 K
品牌: TI [ TEXAS INSTRUMENTS ]
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DM385, DM388  
SPRS821D MARCH 2013REVISED DECEMBER 2013  
www.ti.com  
Complete stackup specifications are provided in Table 8-50.  
Table 8-50. PCB Stackup Specifications  
NO.  
1
PARAMETER  
MIN  
6
TYP  
MAX  
UNIT  
PCB routing/plane layers  
Signal routing layers  
2
3
3
Full ground layers under DDR2 routing region  
Number of ground plane cuts allowed within DDR routing region  
Number of ground reference planes required for each DDR2 routing layer  
Number of layers between DDR2 routing layer and reference ground plane  
PCB feature spacing  
2
4
0
0
5
1
6
7
4
4
Mils  
Mils  
Mils  
Mils  
mm  
8
PCB trace width, w  
PCB BGA escape via pad size(1)  
9
18  
10  
0.4  
20  
10 PCB BGA escape via hole size(1)  
11 Processor BGA pad size  
13 Single-ended impedance, Zo  
14 Impedance control(2)  
50  
75  
Z-5  
Z
Z+5  
(1) A 20/10 via may be used if enough power routing resources are available. An 18/10 via allows for more flexible power routing to the  
processor.  
(2) Z is the nominal singled-ended impedance selected for the PCB specified by item 13.  
222  
Peripheral Information and Timings  
Copyright © 2013, Texas Instruments Incorporated  
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Product Folder Links: DM385 DM388  
 
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