Re: ADE 7880 Accuracy Issue
Hi Heimo The reason I ask for energy measurements is to understand why you think inductive case is erroneous. From above data, it is clear that the sign of the error changes when you switch from...
View ArticleLeakage on ADG732
I am using ADG732 as a de-mux on a couple of my projects. in an open socket condition, when I force current I notice a leakage on the input pins even though I should be hitting the programmed clamp. By...
View ArticleRe: Ultrafast Comparator for Sine wave at 16KHz
You can order the EVAL-ADCMP601BKSZ board on our website.http://www.analog.com/en/special-linear-functions/comparators/adcmp601/products/EVAL-ADCMP601/eb.html
View ArticleSchematic / Layout review
Someone asked by email: I would like to send someone at ADI a schematic/layout that includes AD9361 to review. Is there anyone who can do this? Thanks-Robin
View ArticleAD9361 I/Q
We need to build a system that, at its core, needs to be a MIMO transceiver: I/Q analog ports (eight ports) at a minimum 40MHz bandwidth on one side and RF ports (four ports: two TX and two RX) at...
View ArticleRe: How can I add more I/O assignments in Sigma Studio
Thanks for your help.Significant progress has been made.My application is half running on the ez-board.I would like to move some of the i/o that is predefined in the ADSP-21479 loader.What is the...
View ArticleFMCOMMS2 Active Monitoring
Hi, I am going to be setting up two ZC702s with FMCOMMS2 attracted. One AD9361 is going to be hit with radiation while the other documents the accuracy of the outputs. My current plan is to have both...
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OP37
I will start this with a basic overview of our problem.We designed a baseband amplification board to amplify a baseband signal through two OP37 SOIC-8 stages. The original design specs were that we...
View ArticleRe: OP37
Thaddeus, What are the values of all the resistors? What supply voltages? What is the highest signal frequency? No op amp has swapped inputs. In a DIP or SOIC package, it would put the plus...
View ArticleRe: OP37
Thaddeus, The title is OP37, but your schematic shows OP27. The pc board photo looks like an OP37.You are onlly running a noise gain 3-4 so you really need an OP27. The OP37 should oscillate.If...
View ArticleMod/Demod IQ Selection
I'd appreciate a recommendation of your mod & demod chips (even better if you have mod/demod IQ to 2.4GHz RF in one chip - we'd just drop two of them down to cover the MIMO requirement.) We aren't...
View ArticleRe: My DSP/DAC Project
You really need to have four layers so you can have either two ground planes or a ground plane and a power plane. This is required to keep the impedance on the signal lines somewhat constant. The...
View ArticleRe: FMCOMMS3 with KC705 eval
1. Yes- you can simply insert any processing entities on that path. It runs approx. at 250MHz/16bits of I/Q each (64 total). The effective rate is about 62.5MHz. Make sure your entities are capable of...
View ArticleRe: AD8310 slope temperature stability
Hello Johann, I'll start off by saying I don't think we have distribution data over temperature and frequency for the AD8310. Having said, I think we can piece together a pretty good idea of how much...
View ArticleRe: Blackfin Hibernate Hardware
Hi Ian. The reason for this is due to the inner workings of the Blackfin processor itself. Intuition would suggest exactly as you detail above, but the part you are missing is perhaps lost in context...
View ArticleRe: AD9361 BBPLL fails to lock on prototype
Ah I was probing the wrong pin. But I am probing directly on the via's next to the BGA balls. There is no SPI clk noise on VDDA1P3_BB, but it does drop about 10mV with a transient when the bbpll...
View ArticleSigmaStudio Bugs
SigmaStudio Version 3.9 Build 2. Rev 1246 7/24/2013Computers used both 64 & 32 bit Windows 7 Sometimes when Im working with SigmaStudio, the software bugs out and I loose the ability to open graphs...
View ArticleRe: SigmaStudio Bugs
You changed your zoom. Probably with Ctrl+Mouse WheelThe menu options for restoring to 100% have been gone for a while, lucky there is a keyboard shortcutCtrl+Shift+F6 If your zoom is anything but...
View ArticleRe: ADE7878 Can't start DSP
Hi Dan I would be willing to assist you with your query. It is definitely strange that you are not able to read back 0x01 when you read the RUN register, even after you have set it to 0x01. One way to...
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