[hpsdr] PCB Design

[Eric Ellison]

Horst

Excellent. I meant to comment earlier but had a lot going on at the time
(whats new??? Smile). Also meant to comment when Phil first posted the
schematic.

Obviously there is plenty of room for active and passive parts on the board.
Where there is a real problem is aligning the proposed 'outside world
connections on one edge of the board. (Lower edge in your pictorial.)

This is probably going to bear some intense discussion! Obviously DB-9
connectors are out!

Not being critical - just realistic!

This will also be true of Janus and other boards.

Thanks
Eric - AA4SW




-----Original Message-----
From: hpsdr-bounces at hpsdr.org [mailto:hpsdr-bounces at hpsdr.org] On Behalf Of
H. Gruchow
Sent: Wednesday, April 19, 2006 1:14 AM
To: hpsdr at hpsdr.org
Subject: Re: [hpsdr] PCB Design

***** High Performance Software Defined Radio Discussion List *****

Hi, folks

with my little pcb design program I tried to draw up a parts arrangement of
the FPGA_USB 
board, at least to see what we have to deal with spacewise. The result can
be seen at

http://www.needles.de/pics/FPGA_USB.GIF

I have added a Cypress SRAM chip, just in case we need it. Most probably it
can be left 
unpopulated. The SRAM is very easy to connect.
This is just a non-functional arrangement but I hope everything is onboard
except for the 
Cs and Rs and for sure it has to be re-arranged to become functional. The
board size is 
4"x4" (101.6 mm x 101.6 mm) which is a little wider than the ATLAS. But this
size made it 
easier to draw everything on a 1/10" grid.

Just my few EURO cents.

73
Horst
DL6KBF
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