Forum Post: RE: DAC38J84: 4 independent outputs
Hi Kang, my AA is considering the following JESD MODE: L=8, M=4, F=1, S=1, HD=1 without interpolation (since NCO =0). The TSW14J56 will be used as a waveform generator. The requirement is generating...
View ArticleForum Post: RE: ADS8638: data invalid for first couple of reads, then OK
Hi Dale, Thank you for your reply. No, the command that I send to the ADC is this : AdcData1 = Ads8638TxRx(ADS8368_SELECT_CHANNEL_1); where "ADS8368_SELECT_CHANNEL_1" is #define to be 0x810 (i.e. a...
View ArticleForum Post: RE: ADS8638: channel sequencing in manual mode
Hi Nick, Your "ADS8368_SELECT_CHANNEL_1 0x8x0" is the right address and data to write Manual Mode Register(address=04h) to select channel(e.g. 0x810 for Channel 1), but you did not show the detail...
View ArticleForum Post: RE: ADS5474: FSR Clarification
Hi Neeraj, Thanks. I was under the assumption that FSR is directly proportional to the reference voltage, however, the plot and print in the datasheet express that it's actually inversely proportional....
View ArticleForum Post: RE: ADS8638: channel sequencing in manual mode
Hi Dale, Thank you for your reply. The Ads8638TxRx( ) function is very simple, it uses the stm32 HAL library SPI function to transmit a 16-bit word over the SPI interface (on MOSI), and at the same...
View ArticleForum Post: RE: ADS5294: ADS5294EVM
Hi Prateek, How are you? Here is the TSW1400EVM schematics which we are using for testing ADS5294EVM . Please take a look at its FPGA portion. You can see its interface with ADS5294 . Thank you! Have a...
View ArticleForum Post: RE: DAC38J84: 4 independent outputs
Yes it does. The SERDES rate is 9600Mbps, which is supported by TSW14J56. The DDR of the J56 is 2G-samples, and it should be plenty to support all four channels. -kang
View ArticleForum Post: RE: ADC084S021: ADC084S021 example code
Hello, Unfortunately we do not have an example code for this device. I would suggest following the timing diagram provided in the datasheet, and confirming it is correct by using an oscilloscope on the...
View ArticleForum Post: RE: ADS8638: data invalid for first couple of reads, then OK
Hi Nick, Understood, thanks for explanation. Can you please confirm how many cycles you got 0 hex code (ADC ADDRESS = 0 hex ADC DATA = 0 hex)? two cycle 0 hex data are reasonable because each DIN...
View ArticleForum Post: RE: ADC12D1800: Recommended power-up sequence for NON-DES mode...
Hello Itay I have copied your comments and questions here along with my responses: We set the NDM bit to logic low '0' - DEMUX mode (i.e. We use both DI and DID for sampling the I channel). About the...
View ArticleForum Post: RE: ADS1602: Harmonic at low frequency
Hello, I have not been able to find any data at 20Hz up to this point. I still have more data to go through, and if I find anything, I will provide an update. Regards, Keith
View ArticleForum Post: RE: ADS131E08EVM-PDK: Not able to see correct ADC input on...
Tejaswini, I don't see anything in the setup that looks unusual, so I'm not sure what is wrong yet. The test signal also looks similar to Figure 16 of the ADS131E08EVM user's guide. Have you looked at...
View ArticleForum Post: ADS7049-Q1: SCLK input timing requirement
Part Number: ADS7049-Q1 Hello team, I have a couple of questions about external SCLK input for ADS7049-Q1 . The tPH(PL)_CK is required 0.45~0.55tSCLK duty cycle in the Timing Requirements. 1) Is this...
View ArticleForum Post: RE: ADS1602: Harmonic at low frequency
Hello Thank you for your comment. I am designing a lock-in amplifier with ADS 1602. Line noise is avoided. It was improved by changing the capacitor 10 uF to 1000 uF in Figure 43. We expect the...
View ArticleForum Post: RE: DAC9881: Power-Supply Sequence
Duke-san, Thank you for your detailed explanation. POR and hardware reset are same behavior, aren't they? Best regards, itabi
View ArticleForum Post: DAC39J84EVM: Missing EVM GUI software for DAC3xJ8xEVM
Part Number: DAC39J84EVM The user manual for DAC39J84EVM (SLAU547B) states that a zip file for the GUI s/w is available on the product page ( www.ti.com/.../DAC39J84EVM). "The software can be...
View ArticleForum Post: RE: ADC32RF45: Load/Store Offset Corrector Coefficients
Hi Ozer, It should be possible to do factory calibration as you described. I'm checking with the design team for the procedure to read and write the offset corrector coefficients. I will verify it on...
View ArticleForum Post: RE: ADS131A04EVM: ADS131A04EVM
Hi Joseph, For the noise i have next results: Settings Board: bipolar supplies (JP11 2-3), internal reference enable (JP9 OFF and software enable), Script: Basic startup with Datarate @ 8kSPS 1)...
View ArticleForum Post: RE: DAC39J84EVM: Missing EVM GUI software for DAC3xJ8xEVM
Hi Bill I have notified the DAC39J84EVM expert regarding this issue. He will look into the issue and respond as soon as possible. Best regards, Jim B
View ArticleForum Post: RE: ADS8638: data invalid for first couple of reads, then OK
Hi Nick, Please check the timing graph I highlighted above, your understanding is correct. You can use DUMMY command but it will reduce your maximum sampling rate, actually it isn't necessary because...
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