Forum Post: RE: How to Check the Coefficients obtained through TI Biquad...
@Don DapkusThing its not fair to trust the biquad filter coefficient calculator,so i want to do some filter design and check it on aic3204 how could i do that first thing is different filters are...
View ArticleForum Post: RE: DAC3482: interpolation x8, noise floor increased
Attached snaps of signal level for all interpolation configurationsCan Anyone please help me, as this has become bottleneck for progress of my project.Thanks!Ashwini
View ArticleForum Post: RE: TLV320AIC3256
Hi J- , We tried changing the registers, but it didnt work.In fact, our reference are set to on all the time.Any other advice? Patrick.
View ArticleForum Post: Connect Dry contact electrode to ADS1x9xECG FE
We try to connect dry contact electrode to ADS1x9xECG FE EVM and we do not connect to RLDin. Right now I just get noise, so please tell me how to connect and config to get the correct signal. I found...
View ArticleForum Post: RE: ADS1225 conversion time out of spec
Hi Bob,as I said before, I have removed all ferrites and to increase the ramp time I removed some capacitors on the supply line. But it seems that the ramp time is limited by the LDO, so it will not be...
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Forum Post: ADS1299
Hello,I would like to use ADS1299 for EEG amplifier. I bought its evaluation kit, seems work perfect. Based on that and my requirements, i designed a PCB and i made two systems based on ADS1299. One of...
View ArticleForum Post: RE: Independent Operation of DAC3484 4ch OUTPUT
Hi Jayden,You can use the DAC3484 as four separate DACs. The only catch is that you cannot use the complex mixer in the DAC, but you can use the Fs/2 mixer.You also cannot use the phase adjustment in...
View ArticleForum Post: RE: Problem with ADS1234 @ 80SPS
Hi Sudharsan,What happens if your resistor bridge drifts over temperature? This will affect the current through the load cell. When analyzing the current paths for sensor detection you have to...
View ArticleForum Post: RE: cannot install driver for ADS1298 to Windows Vista....
Mr. Hupp:Thank you for your help with link to 1.1.1 software. It worked with Windows 7.But when I tried to install on XP, there was an error message: "Wrong operrating system."Yes, I would like to...
View ArticleForum Post: VU meter with PCM3070
I'm trying to implement a VU meter with a specAna component in my PPS. I use a 1kHz sinewave input signal that I step in 1dB increments. I peek, with the memory tool,the specAna output DSP_D_coef =90,...
View ArticleForum Post: RE: Analog signal quality problem above 10 HZ in DAC8568
Mahesh,Can you provide a scope capture of this transient?
View ArticleForum Post: RE: DAC8581 outputs 0V no matter what
Hi Abel,It looks like the CH1 vertical scale is set to 1 V/div and the SCLK signal doesn't span an entire division. Meanwhile your schematic, SDIN, and CS show ~5V logic. Why does the SCLK look to be...
View ArticleForum Post: RE: How to connect VCA8500, Passive Low-pass Filter and ADS5287
Hi,I talked this with an engineer who support VCA8500 device. He suggests the below plot with AC coupling. AC coupling is for solving 1.5V and 1.65V VCM difference. This difference is big enough in...
View ArticleForum Post: RE: RE: ADS1234 - DATA OUTPUT NOT CHANGING
Hi Bob,Thanks for Your reply and I read your reply for my another post also http://e2e.ti.com/support/data_converters/precision_data_converters/f/73/t/280100.aspxi manufactured the same board again and...
View ArticleForum Post: RE: TLC1549 application question
Sorry I have no experience with TLC1549 but the datasheet (http://www.ti.com/lit/ds/symlink/tlc1549.pdf) says that data is correct on clock rising edge. Falling edge triggers data change. As a result I...
View ArticleForum Post: RE: ads1282 internal high-pass filter
Hi ingdxdy,The LPF is deterministic. After 62 cycles the filter blocks will output a new settled value. The HPF is more iterative and never really settles to a final value, much like an RC circuit...
View ArticleForum Post: RE: TVP5150AM1 SCLK
This is all you should need...WR_REG,VID_DEC,1,0x7F,0x00 // Restart CPUWR_REG,VID_DEC,1,0x0F,0x0A // Select GPCL pin definitionWR_REG,VID_DEC,1,0x03,0x6F // GPCL...
View ArticleForum Post: RE: TLV320AIC3256
Hi Patrick,Try setting p1_r57 = 0x40 to see if you observe different behavior. This will make the input single-ended.Regards,J-
View ArticleForum Post: Questions about the details of operation of an ADS1274 ADC
Hi, I am new to high-performance ADC's (and ADC's in general) so excuse me if my questions are a bit basic. The ADC I'm trying to use is the ADS1274. I'll always be using the device in high...
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Wiki Page: Precision Data Converters on Analog Wire
Analog Wire is the analog signal chain solutions blog on TI's E2E Community. Come back here to view the complete list of Precision Data Converter blog entries.Precision DAC Blog Series:DAC Essentials:...
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