From: Joerg Hansmann (info_at_jhansmann.de)
Date: 2001-05-17 23:15:41
Hi,
----- Original Message -----
From: Sajith Goonesekera <sajith_at_magix.com.sg>
To: <buildcheapeeg_at_yahoogroups.com>
Sent: Thursday, May 17, 2001 6:31 PM
Subject: Re: [buildcheapeeg] "To do" list
> At the moment I believe "Input stage" is almost perfect.
I hope so ;-)
However here is a new one with a 5 pole Butterworth
anti-alias filter. It is a modified version of the schematic
for the TI-design competition.
(BTW: Thanks to Moritz for the Filter Design software !)
> But the interface stage has some complications.
> Method of "Interface" is not yet finalized.
>
> Why don't we designed a PCB with common input stage and
> multiple interfaces.
This could be done with the modular approach Moritz and I had decided to realize
a few weeks ago.
We now do not have any more one big pcb-board in Euro-format
(160mmx100mm) but instead 2 pcbs with half the size (100mmx80mm).
One reason was modularity - the other reason was, that the freeware-
version of eagle CAD (downloadable at www.cadsoft.de ) supports only
half euro-format size.
The connection between the two pcbs is made via two pinhead 2x9
connectors (or should it be 2x10 ??? ) and ribbon cable (==Flachbandkabel ?)
> Any one can choose a interface which is they
> think is suitable for them and continue the software development.
ACK.
> The best design can be used for the final one.
>
> If every one agree, I can volunteer to design the PCB
What pcb-CAD tool do you prefer ? Is eagle ok for you ?
Or would you suggest something else ?
> and make
> it for the team members as suggested by Moritz.
>
> Sajith
>
Regards
Joerg
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:29 BST