[hpsdr] Mercury V2.9 Question- Mercury clock

Bruce Beford bruce.beford at myfairpoint.net
Sun Nov 22 04:32:56 PST 2009


D18 and R37 are present on my TAPR production Mercury board. So this point
should be good for the new clock source for J8?

-Bruce N1RX


> Hi Dave,
>
> Perhaps you could check if these parts are actually fitted to production 
> oards since I remember there was concern regarding their effect of the
rise 
> time of the 10MHz clock from C16.
>
> 73's Phil.... VK6APH


----- Original Message ----- 
From: "David McQuate" <mcquate at sonic.net>
To: <hpsdr at openhpsdr.org>
Sent: Sunday, November 22, 2009 1:06 PM
Subject: Re: [hpsdr] Mercury V2.9 Question


> ***** High Performance Software Defined Radio Discussion List *****
>
> It looks like a better way to make the connection between Mercury's J8
> "Aux_Clk"
> and Atlas C16 would be to connect from J8 to the common terminal of D18,
> or the
> end of R37 connected to D18.  This way the FPGA input CLK15 is given the
> same
> protection as the input originally connected to Atlas C16.
>
> Dave / WA8YWQ





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