[hpsdr] More Janus results

[Roland ETIENNE]

Phil Harman a écrit :
> ***** High Performance Software Defined Radio Discussion List *****
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> I've now completed testing the prototype Janus board at both 96k and 
> 192k and the results are very good.
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> This image is at 96kHz  (Janus 96.jpg)
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> *http://www.hamsdr.com/personaldirectory.aspx?id=351*
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> and this at 192kHz (Janus 192k.jpg)
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> *http://www.hamsdr.com/personaldirectory.aspx?id=352*
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> What is really pleasing is at 192k there is no sign of the 48k clock 
> feeding the TLV320 Codec which was a problem with my breadboard. The 
> total lack of spurs is a credit to Lyle's PCB layout skills!
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> By using the automatic calibration function on the AK5394A chip I've 
> also been able to reduce the DC offset by a futher 10dB.
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> All the other Janus board functions check out OK so looks like we have 
> a 100% functional Alpha PCB.
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> 73's Phil...VK6APH
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Congratulations Phil! It looks like it's gone be a super audio interface 
for our next radio..

Wonderful job!

73, Roland  F8CHK


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