[hpsdr] AutoSW 10MHz and 122MHz Buffer for Hermes

[Dick Faust]

Note:  My error the SN74LVC1G97 was really a SN65LVDS1DBVR

Dick K9IVB
On 5/24/2014 2:38 PM, Dick Faust wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I wanted a way to get the 122.88MHz clock [called "125MHz" on 
> schematic] out of the Hermes similar to the Mercury EXT CLK [J1]. A 
> SN74LVC1G97 looked to be the answer.  But how to "glue" it onto Hermes 
> ?  Since I also want to connect my LPRO-101 as well I took Mike's 
> [KF4BQ] AutoSw 10MHZ design and added the line driver. Since I did not 
> have any of the parts I also changed some of the parts to a larger 
> footprint and added some power decoupling similar to Hermes.  Thanks 
> to KF4BQ for his work on the AutoSW design.
> Available on my Hermes page
> http://www.k9ivb.net/hermes/  or the following links.
> www.k9ivb.net/hermes/AutoSw_10_MHz-122MHz_Buffer.pdf
> www.k9ivb.net/hermes/AutoSw-Buffer_Gerber.zip
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