FreeLists / si-list / [SI-LIST] Re: General Trace Impedance

["Kedar P. Apte" <kedar@xxxxxxxxxxxxxx>]

Hello Ibrahim

Thanks for your reply 
 operating frequency max is 66 mhz 


Hi Gurus

I am designing a board in which I want 50 ohms Zo for some 60% traces
and rest of the traces 65 ohms 
but I am getting the trace width difference for both the impedance calculations 
which is a bit problem in that I cannot complete the board 
and I cant also restrict the signals to specific layers

So if I use 60ohms and 65 ohms traces will it make much of a difference in 
operation

actually 65 ohms is for CPCI which I cant change and 50 ohms is for all TTL 
level logic if I make this 50 as 60 ohms what difference will it make to the 
operation

Thanks in advance
-------------------------------------------------------
With Regards,
Have A Nice Day,

Bye,

KEDAR P. APTE
Member Technical Staff
RTSDG, C-DAC Bangalore
Off :+91-080- 5341909/1874 - 145
Res :+91-080- 5269939
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