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Re: [Discuss-gnuradio] Moving daughterboard along
From: |
Matt Ettus |
Subject: |
Re: [Discuss-gnuradio] Moving daughterboard along |
Date: |
Wed, 18 Feb 2004 14:29:49 -0800 |
User-agent: |
Internet Messaging Program (IMP) 4.0-cvs |
Charles,
I have posted some sample schematics for basic rx and tx sections for the
usrp. Check the wiki page for the RFSections4USRP
Quoting cfk <address@hidden>:
> The first is the connections to the 64pin interface connector. I can see
> that Molex numbers the pins A1-A32 and B1-B32. I also understand the
> schematic at comsec.com is rev 0 and doesnt have this interface connector.
> The question is, do we have a schematic we can put on the Wiki (or
> somewhere) of the interface connector. This would allow a little more
> gelling of thoughts along the daughterboard interface question.
The pin assignments are shown in the schematics referenced above. I numbered
the pins 1 through 64, with odds on one side and evens on the other.
> Additionally, I think we need a mechanical drawing of the 65 x 55mm (or
> 65 x 110 for Rx only) board showing the location of the interface connector,
> the RF antenna connector (or connectors), the SMA's to the USRP and mounting
> holes. I presume there will be four mounting holes. Here is a little ASCII
> picture as I try to guess where things are going to be.
If you have a PADS license (or the demo version) I can send you the pcb layout
which will give you complete mechanical info. Otherwise, I should be able to
get a mechanical drawing done in a week or so. I don't really have a decent
CAD program, so that is kind of slow going.
> In the meantime, I'm going to continue fleshing out the schematic and
> pcb footprints a little bit, but I really need to know the interface
> connector pin connections and the mechanical relationship of the interface
> connector, RF connectors, mounting holes and board edge to get too much
> further.
Mounting holes, interface connector placement, and board edges are all spec'd
and will be in the mechanical drawing. RF Connectors are up to you.
Matt
- Re: [Discuss-gnuradio] 4702 board, (continued)
- Re: [Discuss-gnuradio] 4702 board, David Bengtson, 2004/02/23
- Re: [Discuss-gnuradio] 4702 board, Eric Blossom, 2004/02/23
- Re: [Discuss-gnuradio] 4702 board, Eric Blossom, 2004/02/24
- Re: [Discuss-gnuradio] 4702 usrp daughterboard, Eric Blossom, 2004/02/08
- Re: [Discuss-gnuradio] 4702 usrp daughterboard, cfk, 2004/02/08
- Re: [Discuss-gnuradio] 4702 usrp daughterboard, Eric Blossom, 2004/02/08
- [Discuss-gnuradio] Moving daughterboard along, cfk, 2004/02/13
- Re: [Discuss-gnuradio] Moving daughterboard along,
Matt Ettus <=
- [Discuss-gnuradio] Daughterboard progress, cfk, 2004/02/18
- Re: [Discuss-gnuradio] Daughterboard progress, Matt Ettus, 2004/02/19