Quantcast
Channel: Data converters
Viewing all 89347 articles
Browse latest View live

Forum Post: RE: AFE7900EVM: New GUI application issues

$
0
0
Hi Ryan, 1. Starting from version 2.8, we suggest all new users to get started with GUI mode only. Script mode is for the users who have already been using it and for special cases that GUI mode doesn't support. For modes GUI doesn't support, TI can provide the scripts. If an excel config is loaded in the GUI, it won't be displayed in the script mode. 2. The JESD loopback mode cases not supported by GUI (even in the pervious GUI versions. Even though the button is shown in the GUI, it didn't work as expected). JESD loopback modes shown in the app sections 2.1.4.1.1 to 2.1.4.1.5 can be configured through the attached scripts. e2e.ti.com/.../JesdLoopbackModeScripts.zip Regards, Vijay

Forum Post: RE: ADC3422: test PRBS generated on LVDS outputs

$
0
0
Hi Rob, you are absolutely right, it is better to share the same configuration. After generation of sampling clock and hardware reset of the ADC, I write registers with following sequence: # REG 06, reset, normal mode 400601 400600 # REG 70A, disable SYSREF 470A01 # REG 03, configure interface bit ordering 0,1,2 and so forth 400300 # REG 04, configure interface wires unflipped 400400 # REG 05, configure interface two wires 400500 # REG 00A, PRBS test mode on CHA, CHB 400A88 # REG 00B, PRBS test mode on CHC, CHD 400B88 # REG 006, enable test pattern 400602 After configuration, I receive data from the interface. I attached two binary files for you to double check the results. e2e.ti.com/.../ADC_5F00_ramp.zip e2e.ti.com/.../ADC_5F00_PRBS.zip Data from all four channels is written in ordered mode, A, B, C, D and repeat, 16bit little-endian per word (only 12bit MSB are used, remaining 4 are zero). If you configure a binary viewer for 8 bytes per line, 2 bytes per group, it is easy to read the data directly. Here is RAMP test result: as you can see channel A is generating 1EB 1EB 1EB 1EB 1EC 1EC 1EC 1EC, and so on. Similarly channels B, C and D are also generation ramp data, increased only every four samples. I checked this behavior on a large amount of data, it is correctly generation a RAMP 0-4095, using all bits. No errors, all channel work as expected. Now the PRBS. The data from one could be plotted in a waveform as in my previous post. Bits [5:0] received from lane 0 seem to move randomly, but not shifting like in a LFSR. Bits [11:6] received from lane 1 also change state (the lane definitely is not stuck electrically, RAMP works!), but they assume almost always the same value, i.e. value is repeated inside the same frame. Here you see a detail of bits [11:6] of previous screenshot. Bit 6 some time differs from value of other bits. Hope you can understand something from these data. Thanks for your advice. Thanks Andrea

Forum Post: ADS5400: ADS5400 Evaluation Board

$
0
0
Part Number: ADS5400 Tool/software: Dear all, I have built an evaluation board for the ADS5400 that has no need for the mezzanine card in between and solve some other issues I faced with the original evaluation board. Would it be possible to promote my ADS5400 evaluation board on the TI homepage? Best regards, Simon

Forum Post: RE: ADS5400: ADS5400 Evaluation Board

$
0
0
Simon, We will not be able to do this as only TI material or approved 3rd party vendors can be promoted on ti.com Regards, Geoff

Forum Post: RE: ADC08B200: ADC with >3KByet capture buffer

$
0
0
Hi, We do not have any devices with capture buffers. Data is converted and is sent out the digital side. External capture will need to be provided. Regards, Geoff

Forum Post: RE: ADS5400: ADS5400 Evaluation Board

$
0
0
Dear Geoff, what's necessary to become a third party vendor? I mean, I own a embedded business in Germany... Would be very interested. Simon

Forum Post: RE: ADS5400: ADS5400 Evaluation Board

$
0
0
Simon, Please see information below https://www.ti.com/info/strategic-partnerships.html Regards, Geoff

Forum Post: RE: ADC12DJ5200RFEVM: ADC GUI script for ADC12DJ5200RFEVM

$
0
0
Hi Rob, HSDC Pro v5.31 shows a following error when zoom in the message. ------------------------------------------------------------------------------- ・ Status :× ・ Code : d1003 ・ Source : Invoke Node in TSW1400.lvlib:Startup Splash Screen.vi VI Path: C:\Program Files\Texas Instruments\High Speed Data Converter Pro\High Speed Data Converter Pro.exe\HPA\HSP\Data Converters\Projects\TSW1400\EVM GUI 64bit\Frame.vi ------------------------------------------------------------------------------- I downloaded v6.0 installer "High Speed Data Converter Pro - Installer v6.0.exe" on Jan this year. But there is no file on current TI web(only v5.31). Can I use v6.0. If it has problem and no recommendation, please let me know. Best Regards, ttd

Forum Post: RE: TSC2004: Touch Screen not responding properly.

$
0
0
We tried the series resistor method using different combinations of 100, 120, and 150ohms. We added the resistors on each line and also tested by connecting them only on the Y coordinates. What we observed is that the response becomes delayed or worsens when the resistors are connected. Could you please advise if we need to modify any specific registers to resolve this issue?

Forum Post: RE: ADS1299: Channel Crosstalk in μA Excitation for Lead‑Off Detection

$
0
0
Hi Ryan, I understand you must be busy, but I haven’t heard back on this thread for a while. We’ve shared quite a bit of detailed data and observations, and we were hoping to know if the information provided is sufficient or if any clarification is needed from our side. Even a rough idea of how long it might take to compile a response from the engineering team would help us plan our next steps internally. Also, if proprietary details are required for further discussion, we’re open to continuing this over email. We really appreciate TI’s support—we primarily use TI chips in our designs, so guidance on this issue would be extremely valuable to us. Thanks again, and looking forward to hearing from you.

Forum Post: RE: ADC12DJ5200RFEVM: ADC GUI script for ADC12DJ5200RFEVM

$
0
0
ttd, what language is the OS on the pc set to? I've seen weird issues with labview based programs installation when the language is not set to english. Chase

Forum Post: DAC39RF12: DAC39RF12-EVM

$
0
0
Part Number: DAC39RF12 Other Parts Discussed in Thread: DAC39RF10EVM , Tool/software: Hi I am looking to procure DAC39RF12EVM, unfortunately the supported EVM DAC39RF10EVM is obsolete (not available in stock). However the customer support they are releasing EVM for DC39RF12. It has been a month, could I get any either DAC39RF12EVM or DAC39RF10EVM that I can use. Also, could you also share Design files for DAC39RF12EVM. I am unable to setup the clocks in the new GUI for DAC39RF12. Does it need a eval board to configure these? Regards Venu

Forum Post: RE: DAC39RF12: DAC39RF12-EVM

$
0
0
Venu, We are in the process of restocking these. It is a priority and we are doing as much as we can to speed this up. Yes, the GUI needs an eval board to configure the clocking. Chase

Forum Post: RE: DAC39RF12: DAC39RF12-EVM

$
0
0
Hi Chase May I know when can we expect the restocking to happen. An approximate timeline. Could you also please share the design files (altium based) Venu

Forum Post: RE: ADS127L11: Voltage reference changes are ignored when using the THS4551 FDA

$
0
0
Hi Keith, thanks for the explanation. If I understand correctly, the advantage of a lower voltage reference is that it has an absolutely lower internal ADC noise? Of course, an external noise is "amplified" by lowering the voltage reference. I took the ADC readings for different voltage references (4V on the left, 2V on the right; the input was 100mV). The readings were 0x1c4071 for 4V and 0x1e5665 for 2V. As far as I can see, the communication is working, but I think I found what is causing the wrong readings, which also leads to the gain factor of 9 (since I am using a lab voltage source, the source resistance should be negligible compared to my 1k/10k gain stage). I made the mistake of measuring the voltages before and after the FDA with a multimeter. If you measure it with a scope, the whole picture changes. Apparently the FDA oscillates between 0 and 5V, with changing timings depending on the input voltage. The first plots are just the FDA without the ADC connected (100mV input on the left, 200mV on the right), in blue and orange the input signals, in violet and green the oscillating output, in red the difference between violet and green. The second plots (again 100 mV input on the left, 200 mV on the right) are with an ADC connected, the shape changes, probably because of the charging of the sample capacitor? I don't really understand how this leads to quite stable readings of the ADC with a proportional change of the 24bit output integers depending on the input voltage. Sure, the average value seems to change depending on the input, but the signal frequency is only slightly below the sampling frequency. I seem to have done something wrong with the wiring of my FDA, but since I copied the typical ADS127L11 application except for the gain of 10 instead of 1, I am not really sure what went wrong. Is it a problem that I did not use the THS 4551 VQFN package with the FB+/FB- pins? Thanks in advance, Regards, David

Forum Post: RE: ADC12DL2500EVM: companion capture boards

$
0
0
Hi Rob two, Thanks for the quick reply. Of course I'm free to develop own firmware to get a capture working based on another FPGA. That's a nobrainer. :-) Well, let me focus on the " LVDS data, clock and strobe pinout " , related to " other compatible boards ". This suggests that it's known that compatible boards do exist. BTW: Part of my investigation led me also to another high-speed converter, the AD9625, where Analog Devices offer a more collaboration like approach in order to be more flexible in getting experiments or an evaluation done. But the 12DL-family is more recent and its features offer more use case options. I think I'm going to set up a collaboration with someone who could also be interested in development of a specific high speed capture application.

Forum Post: RE: ADC08B200: ADC with >3KByet capture buffer

$
0
0
Thank you Geoff, Would you please propose an external capture memory that matches ADC08B200 speed? My goal is to be able to write fast on the buffer and read slow later on by an MCU. Thanks

Forum Post: RE: ADC12DL2500EVM: companion capture boards

$
0
0
Hi Rob, Thanks for the update and details. The AD9625 has a JESD interface. This is different from the ADC12DL2500 device family which has an LVDS digital interface. Regards, Rob

Forum Post: RE: AMC1303E2510: About Chopper Frequency

$
0
0
Hi Yuyama-san, Yes, this is correct.

Forum Post: RE: ADC12DL2500EVM: companion capture boards

$
0
0
Regarding JESD: it appears to me that those devices are more expensive, but that might also have a relationship to issue date and hence, chip technology. There are some devices out there that offer also at least 2.5 GSPS, but I found them to have release dates over five years back (e.g. Teledyne e2v). And they tend to dissipate more heat. I think that DDR LVDS makes the ADC12DL-family a bit more attractive, compared to both std. LVDS (in absolute terms) and JESD (in relative terms), and as such, a bit less critical when it comes to signal routing.
Viewing all 89347 articles
Browse latest View live


<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>