[hpsdr] Mercury V2.9 Question- Mercury clock

[Phil Harman]

Hi Bruce,

That connection point should be just fine.  Make sure you use anti-static 
precautions when you run the wire to C16.

Phil...VK6APH


----- Original Message ----- 
From: "Bruce Beford" <bruce.beford at myfairpoint.net>
To: <hpsdr at lists.openhpsdr.org>
Sent: Sunday, November 22, 2009 8:32 PM
Subject: Re: [hpsdr] Mercury V2.9 Question- Mercury clock


> ***** High Performance Software Defined Radio Discussion List *****
>
> 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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