Re: [hpsdr] Ozy – Schematic OZY_REVXA3.sch (comments)

[Philip Covington]

Hi Alex,

Yep, that's it. AX88180

73 de Phil N8VB


On 5/18/06, Alex <harvilchuck at yahoo.com> wrote:
> Phil,
> You mean th Asix AX88180? (http://www.asix.com.tw/products.php?op=pItemdetail&PItemID=88;65;102&PLine=65)
>  It needs two clocking sources, one is from the host system clock (40-100MHz), the other is a 125MHz clock for the RGMII interface.
>
> With all the VHF hash around, we might want to think about shielding any sensitive circuits.
>
> Alex, N3NP
>
> ----- Original Message ----
> From: Philip Covington <p.covington at gmail.com>
> To: Alex <harvilchuck at yahoo.com>
> Cc: hpsdr at hpsdr.org
> Sent: Wednesday, May 17, 2006 1:58:03 PM
> Subject: Re: [hpsdr] Ozy – Schematic OZY_REVXA3.sch (comments)
>
> On 5/17/06, Alex <harvilchuck at yahoo.com> wrote:
> > Phil,
> > If there still is a worry about bandwith limitations on the USB (say like having other devices - keyboards, mice, etc - on the same USB host controller) how about sending the data via cat5 ethernet or fiber. Leave the control on USB. A software widget is then needed on the host computer to expose an interface for PowerSDR.
> >
> > Here's a neat little device that some compatriots from Europe found:
> >
> > http://www.edtp.com/nicholas_page.htm
> >
> > Might be useful on CASMIR and HORTON for tower mounting microwave transceiver equipment.
> >
> > Alex, N3NP
>
> Hi Alex,
>
> I would not consider anything less than gigabit ethernet if I was
> going through the trouble of adding an ethernet interface.  ASIX has a
> very interesting chip like the one in the NICholas but it will do
> giga... now if I could only find a source for that part...
>
> I am keeping my eye on PCIe solutions (x1 2.5 GbPS).  Phillips and TI
> make PHY chips that will work with the Cyclone II.  I envision having
> a PCIe card in the PC.  From the PC to the HPSDR would be fiber using
> GBICs.
>
> 73 de Phil N8VB
>
>
>
>

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