Forum Post: PCM4201 and PCM1774 with DC
Hi All,Would you mind if we ask PCM4201 and PCM1774?<Question>These PCM4201 and PCM1774 are used for audio(AC) generally.However, if we use as DC signal(0Hz), are these devices available to use...
View ArticleForum Post: RE: Two EVMs and mutual interference between coils
Hello Evgeny,I have a similar question about multiple coils. I was thinking of creating a grid array of coils to put in a shoe for measuring contact and pressure on the soles of the feet. My idea was...
View ArticleForum Post: RE: ADS1248 power on reset problem
Thank you very much for the reply.The major mistake i did is i left the configuration pin (master or slave) to floating. On that time the SPI set to MODF (mode fault) handler. After setting...
View ArticleForum Post: RE: TSW1406EVM and DAC5682Z
Hello Ken,Thanks a lot for the fast response.I can safely go ahead and buy both EVMs now.Best regards,Andrey.
View ArticleForum Post: ads1256 DRDY and timing
Hello,i have a general question regarding the /DRDY.Does this pin always toggle so that i can use it as trigger for sending data via SPI to the ADC.I want to simplfy my commication via SPI, and as i...
View ArticleForum Post: RE: ADS1255 wrong data appear after a random time
Hello,Another question, When I do a system or a self calibration the same registers are changed (OFC and FSC). So when I do the self calibration I erase the value of my system calibration ?. I ask this...
View ArticleForum Post: Dependcy Inductane - Rp and Energy supply of LC resonant circle
Hello,1) as written in the datasheet LDC1000 the inductance is calculated with the formula:L=1/[C*(2*pi*fsensor)^2]I assume that the resonant circle is swinging at resonant frequency and this frequency...
View ArticleForum Post: Recommend about DSP development board
Hi, I am currently design an BPSK modulator in matlab simulink. I would like it to convert to the code and run in TI hardware. However, I didnot know which TI development board I should use. I am new...
View ArticleForum Post: RE: LM49450 unstable / random audio
From your description, it sounds as if something stresses the device (or the system - for example the power supply) resulting in the class-D modulator misbehaving grossly.The rationale for my question...
View ArticleForum Post: RE: Data acquisition system with hardware for Digital signal...
Hi,Most of TI's high speed multi-channel data converters are compatible with the TSW1400 capture card solution. This card comes with software that allows for simultaneous data acquisition of all...
View ArticleForum Post: RE: PCM4201 and PCM1774 with DC
Hi, Matsumoto-san,Unfortunately, we do not have any information on using either of these devices for DC signals.-d2
View ArticleForum Post: RE: LM49352 configuration issue
Hi, Farhan,Which register are you trying to read? CHIP_ENABLE or CHIP_ACTIVE?Does the amplifier work correctly other than this?-d2
View ArticleForum Post: RE: ADC12J4000 / Direct RF sampling
Kato-san,Please follow the instructions in the ADC12J4000EVM user's guide: http://www.ti.com/lit/ug/slau551/slau551.pdfIf you are having specific issues, please report them back here and we will help...
View ArticleForum Post: RE: ADS62P42 CMOS MUX mode only deliver B input...receive garbage...
I have VIC = 2.04 V on pins 19-20 and 29-30 analog differential input pins. I know it's a bit out of range but input B seems to work like it should. Why would this affect input A more than input B ?
View ArticleForum Post: RE: About a register (filter) setup of TLV320ADC3101.
Hi Sotoshi-san,First you must choose a processing block that supports biquad filters. An example would be PRB_R2. You can see on Table 6 on Page 33 of the datasheet, that PRB_R2 supports 5 Biquads. You...
View ArticleForum Post: RE: ADS1271-EVM software does not recognize MMB0
The ADS1271 device in still active; the status of the devices are shown at the top of the product page.Currently, the software only supports WinXP; we are evaluating current software for future...
View ArticleForum Post: RE: ADS1248: Accuracy
Hi Rae,one thing that I noted is with respect to your 2k RBIAS. When using 250uA of excitation current your reference voltage for the ADC is 'only' 0.5V. That is the minimum the ADS1248 allows. I did...
View ArticleForum Post: RE: AIC3104 DAC output switching
Hi, Donald,That is very strange. i suspect it's an issue with the way you're programming the registers. Can you double-check your register settings?-d2
View ArticleForum Post: RE: Register Value Setting of TLV320ADC3101
Hi, JaePhil,I've asked my colleague to work with you on this issue next week.-d2
View ArticleForum Post: RE: ADC EVM recommendation
Hi Daaf,Single-ended inputs are generally not supported by high-speed ADCs. In order to use a single-ended input you would need to use a differential amplifier to convert from single-ended to...
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