Brian, 

I assume you need SMD caps. Have a look at MURATA multilayer ceramic chips, maybe LL 
series. For your prototype, I would suggest you solder a cap of 1-2uF directly on top 
of the IC, connecting accross power pins and using small multistranded wire. You could 
put several of them in parallel, as well, depending on the IC's power consumption. If 
you have multiple power pins on the IC, try placing more than one cap accross.

Igor

-----Original Message-----
From: Brian Guralnick [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 10 September 2002 11:50 AM
To: Protel EDA Forum
Subject: [PEDA] Fw: on topic supply SOS


DAMN ISP HEADACHES!!!

Re-send...
> This is one of the decoupling caps between VCCINT 1.8v & GND.
> 
> As you can see, the 1.8v dips down to 1.625.  This creates havoc with the processing 
>inside the Altera EP20K200E which has clocks
> running at 133MHz, 125MHz, 95MHz, & 24MHz.
> 
> 16KB
> ftp://ftp.point-lab.com/quartus/Public/ProtelUsers/NoiseVcc18-2ns.png
> 14KB
> ftp://ftp.point-lab.com/quartus/Public/ProtelUsers/NoiseVcc18-4ns.png
> 
> Here is my current decoupling caps for the 1.8v.
> 
> 4 x 0.1uf smd 0805 ceramic.
> 3 x 470uf electrolytic.
> 
> See the problem?
> 
> I originally had 32 x 0.1uf, but some rush work with cut & paste at one time about 2 
>month ago left me with this to work with.
> 
> I need a temp fix where I only have 4 sets of access points around the APEX part 
>with nice Vias to 1.8v.
> 
> I can't get my hand on the Wima caps, any other solutions, or, recommendations?
> 
> ____________
> Brian Guralnick
> [EMAIL PROTECTED]
> Voice (514) 624-4003
> Fax (514) 624-3631
> 
> 
> 


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