Re: [Xylo-SDR] Xylo

[KD5NWA <kd5nwa@cox.net>]

I think then that that dark layer in the middle of the board is
glue.

I had a email from Jean this morning, and he is going to be making a
Cyclone II board next year. 

I was looking at some of the other Altera FPGA's and wow! The Flex series
has up to 26K LEs, runs at 1 GHz, and up to 1000 user I/O pins. I bet
that one is more than $20 Just the board to hold this 1506 pin IC will
cost more than $20.

At 04:50 PM 12/13/2005, you wrote:

Guys
 
Talked with Jean today, all his present boards are 2 layers, carefully routed.
 
Eric
 
 

---

From: xylo-sdr-bounces@lists.ae5k.us [ mailto:xylo-sdr-bounces@lists.ae5k.us] On Behalf Of KD5NWA
Sent: Tuesday, December 13, 2005 7:57 AM
To: Xylo-SDR Discussion
Subject: Re: [Xylo-SDR] Xylo
 
Hard to tell with these old eyes but all I see is one additional layer between the two outside layers , it appears to be mostly a power layer, what I can see is a solid layer. Making it for a total of three layers.

The board consist of two fiberglass layers glued, one side is mostly ground plane and the other side traces and most components, although there are components on the bottom also.

If I get a chance to go to the Springdale facility toy, we have a camera that can focus to 1 mm, I'll send you some pictures if I go there today.

If I can't go maybe someone can see it better than I can.

At 05:06 AM 12/13/2005, you wrote:

Just out of curiosity, how many layers is the Xylo PCB?
 
Leon
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Cecil Bayona
KD5NWA
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"I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... "
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Cecil Bayona
KD5NWA
www.qrpradio.com

"I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... "