[hpsdr] New SDR chip from Analog

[Helmut, DC6NY]

Hi Rodney,

sorry, I've no skills in FPGA coding. As an old analogue fossil my experience ends with FORTRAN or ALGOL, hi. But AD and LT are offering some nice evaluation/reference boards for their products. Please see e.g. http://www.ti.com/tool/adc12d1800rb 

73, Helmut, DC6NY

-----Ursprüngliche Nachricht-----
Von: Rodney Durrett [mailto:radurrett at bellsouth.net] 
Gesendet: Mittwoch, 20. November 2013 07:12
An: Helmut, DC6NY
Cc: John Melton; <hpsdr at lists.openhpsdr.org>
Betreff: Re: [hpsdr] New SDR chip from Analog

Hi Helmut,

Rodney, AK4PR, here.  I have followed the HPSDR for a while and your comments about using TI ADC caught my eye.  I am interested in learning more about DDC / DUC and possibly writing or modifying existing FPGA code to work with GHz range ADCs and DACs.

Is there any transceiver FPGA code that implements DDC / DUC that you could point me too that I might be able to experiment with?  I have a ADC / DAC board connected to a FPGA dev board that would make a good test bed for such experiments. It's not a TI ADC12D1800, but if I got it working on the slower ADC / DAC board, I might step up to a ADC12D1800 board for more experiments.

73s, Rodney, AK4PR

> On Nov 19, 2013, at 5:37 AM, "Helmut, DC6NY" <dc6ny at gmx.de> wrote:
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi John,
> 
> Thanks for info. Yes, that’s an interesting chip, but IMHO not really 
> innovative except of the size of integration. Analogue down/up 
> conversion with all the known disadvantages is still necessary to 
> cover the 4G and WIFI frequency range of 1 to 5 GHz.
> There are only a few reasonably prized  High-Speed ADCs available like 
> the TI type ADC12D1800 to cover the entire frequency range between ‘0’ 
> and 800 MHz in DDC/DUC technique. This would be together with 
> following filtering/decimation processing a real challenge for ham radio development.
> 
> Nevertheless I believe, we should starting to develop intelligent 
> applications to protect higher ham bands against the appetite of 
> commercial users maybe in the first step with undersampling.
> 
> 73, Helmut, DC6NY
> 
> -----Ursprüngliche Nachricht-----
> Von: hpsdr-bounces at lists.openhpsdr.org 
> [mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von John Melton
> Gesendet: Dienstag, 19. November 2013 11:02
> An: hpsdr at lists.openhpsdr.org
> Betreff: [hpsdr] New SDR chip from Analog
> 
> ***** High Performance Software Defined Radio Discussion List *****
> 
> 
> This looks like it would be an interesting chip to play for the higher
> frequencies:
> 
>     www.analog.com/ad9361rftransceiver
> 
> -- John g0orx/n6lyt
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