[SI-LIST] 12 Layer stack

Hi ,



I have following two stack up's



Stack 'A'



1)Signal

2)PWR

3)GND

4)Signal

5)PWR

6)Signal

7)Signal

8)Gnd

9)Signal

10)PWR

11)GND

12)Signal



Stack 'B'



1)Signal

2)GND

3)Signal

4)Signal

5)Ground

6)Power

7)Power

8)GND

9)Signal

10)Signal

11)PWR

12)Signal



Intent is to use one of these stacks for an FPGA based high speed Design (Max
133 Mhz).

Can i know which one is preferable.





regards

Sunil.B




      

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