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Jonathan Harris

IMS 2014: Day 3 From an Applications Engineer Perspective

Jonathan Harris
jonharris0
jonharris0
6/30/2014 8:55:59 AM
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RE: that PHD.
Indeed, samicksha! :-)  I'd like to see that 20GSPS ADC as well!  It would definitely be an achievement.  I think it is on the horizon but still a few years away.  It is amazing to look back over the last 20 years to see how far we've come and to think about what the next 20 will look like...

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samicksha
samicksha
6/30/2014 4:51:09 AM
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RE: that PHD.
I am amazed and curious to see how this high speed ADC should look like, i.e. 20GSPS ADC, sounds like an acheivement.

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yalanand
yalanand
6/27/2014 6:54:10 AM
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RE: that PHD.
It's always a good idea having these shows because you get to interact with many people who you can get to exchange ideas with. From students; to professors and other workers from different companies. You get to social with them and get to learn things that can help you in accomplishing your duties as an engineer and worker from a specific company. You find that you will get to be more productive in fulfilling your duties.

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jonharris0
jonharris0
6/26/2014 3:55:27 PM
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Re: that PhD...
Good point RedDerek, you never know when we might cross paths again.


Thanks Sunita!  I was very happy and am thoroughly enjoying the iPad.  I didn't realize how useful they could be.  Thanks for the kind words as well.  I was hopeful that folks would enjoy reading about the show on a more personal level.  I had a lot of fun writing these blogs and am happy to hear you enjoyed them. :-)

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RedDerek
RedDerek
6/26/2014 2:32:16 PM
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Master
that PhD...
Johnathan,

Keep that PhD in mind. If they are that enthusiastic, they may just discover that path to 20 GSps. Innovation develops on new technology.

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SunitaT0
SunitaT0
6/26/2014 6:24:06 AM
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Master
Congratulations
Jonathan, Congratualtons for your ipad mini. Thanks for sharing your entire IMS experience and I enjoyed going through these posts.

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More Blogs from Jonathan Harris
We will continue looking at the AD9680 as an example just as we did in part 1. Similar to the real mode operation of the DDC the normalized decimation filter responses are the same regardless of speed grade.
Let’s now take a closer look at the decimation filtering and how ADC aliasing influences the effective response of the decimation filtering
Increase the decimation ratio in the DDC to see the effects of frequency folding and translating when a higher decimation rate is employed along with frequency tuning with the NCO.
Let’s now take a look at a real example with the AD9680-500. We’ll see how this simple yet powerful tool can be used to aid in understanding the aliasing effects of an ADC as well as help with understanding effects of some digital processing blocks in the AD9680.
Back in my April blog post this year, we took some time to look at the Frequency Folding Tool that is available on the Analog Devices web site. I would like to revisit this tool as there have been a few handy improvements that have been made based on some great feedback.
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