Re: [buildcheapeeg] "To do" list, new input stage

From: Sajith Goonesekera (sajith_at_magix.com.sg)
Date: 2001-05-18 02:45:20


Hi

Yes I can use eagle CAD. I'll follow joerg's suggestion and start Design the
PCB with the diagram you have send. and send to every body for confirmation.

And can any one send me the all final interface diagrams, so I can include
it the PCB.

Any modification Pls. Let me know.

Regards

Sajith

----- Original Message -----
From: "Joerg Hansmann" <info_at_jhansmann.de>
To: <buildcheapeeg_at_yahoogroups.com>
Sent: Friday, May 18, 2001 6:15 AM
Subject: Re: [buildcheapeeg] "To do" list, new input stage

> 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
>
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