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Max The Magnificent
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
Max The Magnificent   4/27/2012 7:19:20 PM
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I'd really like to hear what you think about this piece -- did I go "too simple", or did you find it useful as an introduction?

abulovic
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
abulovic   5/1/2012 5:49:44 AM
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Some parts were a bit too simplistic, but in general I think you gave a very good introduction. The most important thing - there are no boring parts, no too-complex-I'll-just-skim-this parts. Thank you for the effort, it's useful to know these things :)

Max The Magnificent
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
Max The Magnificent   5/1/2012 1:12:39 PM
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Thank you for taking the time to comment -- I must admit that when I'm reading something I hate it if it suddenly gets mega-complex -- the thing about this article is that I've recently come to realize that the majority of people who aren't using FPGAs really don't have a clue what's inside them -- so I decided to make it an article that introduced everyone to everyone else ... sort of thing...

Slogan
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
Slogan   5/2/2012 8:31:15 PM
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Max, I thought it was a good mix of data converter and FPGA knowledge. I've forwarded it to a few colleagues within Xilinx. You're right that data converters and FPGAs are becoming much more closely joined at the hip. The only piece to the article I would've added would be a little more detail on the data converters' standard parallel outputs requiring 16 or 32 pins and IO lines for a 16-bit ADC, for example. For systems with multiple data converters in parallel, JESD204B could be a lifesaver for routing and getting good data. -Steve Logan, Xilinx

Max The Magnificent
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
Max The Magnificent   5/2/2012 8:36:35 PM
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Thanks Steve -- you are correct -- I should have pointed out how many I/O lines are required when doing things the old-fashioned way (grin). When you start to have multiple converters, the savings in I/O when you go serial instead of parallel really mount up

hellmut.kohlsdorf@hotmail.de
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
hellmut.kohlsdorf@hotmail.de   5/3/2012 7:30:53 AM
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Great article. I see forward to read how you are able to keep this style as you move forward into this topics. A challenge you will meet, I am sure!

Max The Magnificent
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
Max The Magnificent   5/3/2012 2:09:33 PM
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thank you so much for your kind words

yzm520xx
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
yzm520xx   5/3/2012 1:48:39 PM
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It is very useful for future application of A/D & D/A. If you could give some reference design, it is more perfect.

Max The Magnificent
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
Max The Magnificent   5/3/2012 2:10:10 PM
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I'm checking around with the chip vendors to see what they've got

Max The Magnificent
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re: A/D Converter ? FPGA ? D/A Converter: The JESD204/A/B Standard – “Where the rubber meets the road”
Max The Magnificent   5/4/2012 4:03:47 PM
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I've not heard back from anyone yet... One option is to root around the various FPGA, and A/D and D/A vendors' websites. For example, I just took a brief stroll around the Analog Devices (ADI) website and found the following reference design-related links for their JESD204-enabled A/D converters: 1. Product evaluation boards that interface to an FPGA-based data capture board to form a complete evaluation system. http://www.analog.com/en/analog-to-digital-converters/ad-converters/ad9644/products/EVAL-AD9644/eb.html 2. ADI’s EngineerZone forum online FPGA reference design resource site http://ez.analog.com/community/fpga 3. FPGA reference design resource page on Analog Devices wiki site. http://wiki.analog.com/resources/fpga If anyone knows of other reference designs for other vendors, please post your comments here.



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