Fast / medium fast : AtoD & DtoA

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Re: Fast / medium fast : AtoD & DtoA

Postby coflynn » Thu Apr 18, 2013 12:40 pm

Hello,

Greatly appreciate the offer, will take you up on that I imagine! I'll look into what's required of the adapter board, should be able to spin a few at some point.

On the plus side since the OpenADC uses the 'PMOD' interface, any of the Digilent Inc boards also using that interface would work on my adapter board too. Someone mentioned another user looking at designing them, will look into that too.

Regards,

-Colin
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Re: Fast / medium fast : AtoD & DtoA

Postby 9600 » Thu Apr 18, 2013 12:46 pm

coflynn wrote:Hello,

Greatly appreciate the offer, will take you up on that I imagine! I'll look into what's required of the adapter board, should be able to spin a few at some point.

On the plus side since the OpenADC uses the 'PMOD' interface, any of the Digilent Inc boards also using that interface would work on my adapter board too. Someone mentioned another user looking at designing them, will look into that too.

Regards,

-Colin


If it was in any way helpful for development, I could set you up with network access to a ZedBoard-based prototype and would be happy to plug an OpenADC board in. At present there is SSH access to the board and also to a Raspberry Pi that's connected to its serial console. If you needed to modify the PL contents that would be a bit more tricky, but I could look into VNC access to a host running the tools.

Cheers,

Andrew
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Re: Fast / medium fast : AtoD & DtoA

Postby errolt » Thu May 29, 2014 8:22 am

Hi everyone,

I know that i'm late to the party, and that this thread is a year old, but a lot of things has happened in the last year. :)

Has anyone looked at this chip from Analog?
http://www.analog.com/en/rfif-component ... oduct.html

It has both ADC and DAC running at 112MHz(?) and 12 bits, with a tunable bandwidth of between 200KHz and 56MHz.
On top of that it has a built in Up/Down converter with a tunable range of 70MHz to 6GHz.
It also has 6 single ended inputs or 3 differential inputs. Outputs are two differential drivers.

This is an complete SDR front end in a single chip.

Snag: The price, at $130 in quantities of 184, and it's 144 ball BGA.

There is an FMC board, with SD card images for the ZED board is available for $400. The FMC board can be seen here:
http://www.analog.com/en/rfif-component ... BZ/eb.html

It will also make a very nice base for a Vector Network Analyzer.

Anyone interested in making an add-on board for the Parallella? :)

Thank you,
Errol
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Re: Fast / medium fast : AtoD & DtoA

Postby kaklik » Tue Sep 09, 2014 7:55 pm

errolt wrote:Hi everyone,

I know that i'm late to the party, and that this thread is a year old, but a lot of things has happened in the last year. :)

Has anyone looked at this chip from Analog?
http://www.analog.com/en/rfif-component ... oduct.html

It has both ADC and DAC running at 112MHz(?) and 12 bits, with a tunable bandwidth of between 200KHz and 56MHz.
On top of that it has a built in Up/Down converter with a tunable range of 70MHz to 6GHz.
It also has 6 single ended inputs or 3 differential inputs. Outputs are two differential drivers.

This is an complete SDR front end in a single chip.

Snag: The price, at $130 in quantities of 184, and it's 144 ball BGA.

There is an FMC board, with SD card images for the ZED board is available for $400. The FMC board can be seen here:
http://www.analog.com/en/rfif-component ... BZ/eb.html

It will also make a very nice base for a Vector Network Analyzer.

Anyone interested in making an add-on board for the Parallella? :)

Thank you,
Errol


Many people on this forum are able to design such add-on board, but it is not low cost project. The board based on chip which you have mentioned can easily reach 1000$ price tag.

I think the best solution for connecting ADC/DAC to parallella board is use of modular approach based on SATA cabling system. The problem is similar to high speed data acquisition thread.
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Re: Fast / medium fast : AtoD & DtoA

Postby errolt » Tue Sep 09, 2014 8:46 pm

Using sata connectors/cables for this chip would be a waste. Why lay out a 6 or 10 layer board just to use sata connectors? You would also need several cables.

Then it would be simpler to design an FYI to Paralleled adaptor board as FMC is a standard ADC/DAC interface.

I will probably create an adaptor board like this, but I will need a solution sooner for test setup, so I will just have to buy a zedboard and FMC card, which will set me back $800, still cheaper than your $1000 estimate...

Thank you,
Errol
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