Forum Post: RE: Problem with write to CFR in ADS8331
Hi Marcin,Welcome to the data converters forum. We were just informed of your post.Most likely, you are using either SPI-mode-0 (CPOL=0/CPHA=0) or SPI-mode-3(CPOL=1/CPHA=1) to read data.To write to...
View ArticleForum Post: Interfacing LPC2148 to the ADS1293 EVM
I have the ADS1293 EVM and i am trying to interface it to the LPC2148 MCU with the SPI interface.When i try to read any register i jus get a 0x00 value even though i have written some other value to...
View ArticleForum Post: ADC12D1800 + FPGA
If there an easy way to use the ADC12D1800 with one of your FPGA boards as a data capture tool for signals from 5MHz to 1GHz?
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Forum Post: RE: PCM2900C unwanted 1KHz tone on the output
Hello,I've done some testing on the supply rails. Filtering the Vbus 5V with a inductor didn't improve the noise on the Vbus rail. Vbus before PI filter, Host side.It made the Vbus even worse, as i...
View ArticleForum Post: RE: ADS1278 Vcom Buffer
We would definitely not recommend trying to drive the buffers using the ADS1278 directly; it needs to be buffered. You are correct in that you do need to be careful of the capacitive loading on the...
View ArticleForum Post: RE: DAC161P997 HART Injection signaling...
Hello,You will need to create a “floating” supply: something that generates a local supply (system) rail referenced to COMA/COMD. It is possible to do, but it is difficult. One way is to use a switcher...
View ArticleForum Post: RE: ADS1178 SPI Interface
Thanks for the reply, Greg.Unfortunately, the ADS1178 has no CS like a normal SPI interface. The DRDY pin will go high immediately after a SPI read starts, and remains high for some period of time...
View ArticleForum Post: RE: can I couple two LDC1000 coil to increase the resolution?
Hi Jiaqi,Yes, the detecting resolution will be lower as the target is moving further from the coil. But your sensing range is only 2mm, if you use a coil with diameter larger than 10mm, I think the...
View ArticleForum Post: RE: ADC-WB-BB
Hi RosanahThe ADC-WB-BB (http://www.ti.com/tool/ADC-WB-BB) operates from 4.5MHz to 3GHz and uses a Mini-Circuits wirewound balun. The datasheet for that balun can be found here:...
View ArticleForum Post: RE: Can we use LDC1000 to detect a steel pipe inside a pipe?
Yes, it's worth a try.Some time back I ran a sim for 1/4" pipes, and the results were very positive.Is your SS magnetic? If not, then the chances are much better.The only thing is that you will need a...
View ArticleForum Post: Power down pins on ADS1278
i'm using the ADS1278. 6 of the channels are being used and 2 are not. i tied the unused pwdn pins for those 2 to gnnd. the other 6 are floating. do they need to be tied high? when i strobe the SYNC...
View ArticleForum Post: RE: PCM4204 Clock Input Jitter
We require a clock with jitter for SCKI < 100ps rms to guarantee the max THD. BCK and LRCK aren't as critical (they are used to shift data, not convert the signal).
View ArticleForum Post: RE: DAC3164 - SYNC and ALIGN
Hi,I am waiting exact confirmation from our design team, but from looking at the schematics for the EVM I would have to say that the ALIGN input signal is LVPECL. The DACCLK is LVPECL, and on the EVM...
View ArticleForum Post: RE: ADS42B49 EVM and TSW1400
Hi Eric,This sounds strange. Will you please send some screenshots of the time domain signal captured by HSDCPro?Is the EVM setup for parallel programming or SPI programming?Regards,Matt Guibord
View ArticleForum Post: RE: Can we use LDC1000 to detect a steel pipe inside a pipe?
The best/easiest way is to simulate it using some FEM.
View ArticleForum Post: RE: can I couple two LDC1000 coil to increase the resolution?
Hi Sunny,Thanks for the answer. I'm going to buy another EVM to test this. Cheers,Jiaqi
View ArticleForum Post: RE: PCM5102EVM-U Rev A
Hello,thanks a lot, the new board is OK (was OK ;o( )I did a Firmware update:Device: TAS1020BSW: DFUTEST.exeExample Firmware: TAS1020-Firmware Dev Kit/TAS1020BEVM...
View ArticleForum Post: RE: AIC3254 cannot start PLL
Hi Don,Thanks for the reply, I'll compile some data asap and post back.WIll.
View ArticleForum Post: ADS1293 maximum output current
Hi, I am working on project of portable EMG device and I use ADS1293. I need to know what is the max output current of pins and which safety standards can be applied to this microchip? I've looked...
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