Forum Post: RE: ADS1248 SPI timing problems
Hi Joannes,The one signal that is not shown is DRDY. The ADS1248 defaults to RDATAC mode which will automatically place the latest contents of the conversion result to the output buffer as soon as...
View ArticleForum Post: Question regarding non-demux mode on ADC12D500RF/ADC12D800RFRB
Hi, we have a board with an ADC12D500RF, and are attempting to run in non-des, non-demux mode at about 400 MHz. We put the ADC into test pattern mode (via pin -- we aren't using ECE at all currently),...
View ArticleForum Post: RE: cannot install driver for ADS1298 to Windows Vista....
shreedhara:The latest version 1.1.1 of ADS1298 evaluation kit software have not worked with Windows XP for at least 3 people including me (see previous posts)I do not know why TI keep saying that 1.1.1...
View ArticleForum Post: RE: how to get data from TSW1400 when use my own firmware
Hi Yunjiang,Here are the required changes:Install: R57, R58, R59, R60, R129, R133, R149, R150, R151, R152Remove: R61, R62, R63, R64, R153, R128, R66, R156, R126, R127, R130, R131, R132Regards,Matt...
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Forum Post: Wireless loopback testing with the AIC3254 - local tests work,...
Can the TLV320AIC3254_EVM be configured (using the AIC3254 CS tool) to to support the wireless loopback test shown below?Local loopback works fine.The intention is to use the AIC32x4 to support various...
View ArticleForum Post: RE: PCM5122EVM :Unable to Connect to Hardware
Hello Jason,when did you receive your board? That was a previously known issue that I believed was fixed.Our most recent builds have had small smd resistors on the underside of the board (next to test...
View ArticleForum Post: RE: DAC3482 Harmonics at the output
Hi Prasad,Purna Chandar with the local TI applications support have forwarded more information regarding your issue. I have send some suggestions regarding your applications and we can work offline so...
View ArticleForum Post: RE: AIC3120: Which component should we use in order to detect the...
A1: None of these components calculate the RMS value of an input signal. If you add a "Square root data" component after "PeakSq" component you may be getting a good appoximation of the RMS value.A2:...
View ArticleForum Post: RE: THS5651A- Help/Question for layout signals.
Hi Pedro,The R4 and R5 resistor pack are 33ohm series resistors, which is useful for damping out ringing in the rise/fall transitions in the data line. You can find the part # in the BOM section of the...
View ArticleForum Post: RE: About the power consumption of DAC34SH84
Hi Kobayashi-san,I believe that you are asking the reason why AVDD 3.3V decreased by 40mA after disabling output channel C and D. The reason for this is that the power consumption level that I gave you...
View ArticleForum Post: RE: Urgent! TSW30SH84EVM configuration
Hi Giovanni,We recommend to set the CLK4 of the TSW30SH84EVM to be LVPECL 2.0Vpp level for the highest clock swing to the DAC. This should be the default TSW308x GUI setting of the example files...
View ArticleForum Post: RE: Question about TLV320DAC3100
Please attach the complete register settings showing how you configured all clocks. What's your filter configuration and please attach a plot of the spectrum.
View ArticleForum Post: RE: THS5651A- Help/Question for layout signals.
Also Adding to my previous post:Looking at the Datasheet (THS5651A) page 5 say fCLK minimum 70 MSPS , Does it mean will not support 50 Mhz clock? Thanks
View ArticleForum Post: RE: ADS8556 SPI configuration - control register.
Hi Mariusz,I don't see anything in your spreadsheet that would cause the register content not to be sent out of the SDO line. Can you verify the voltages on the analog and digital power pins, that the...
View ArticleForum Post: RE: ADS1293EVM does not show EKG trace
Just to be sure I was using the default settings, I reloaded the software. I saw no change in the symptoms.> Do you notice any changes on this current with the baseline wandering?The current...
View ArticleForum Post: RE: how to get data from TSW1400 when use my own firmware
Hi Yunjiang,You may want to reinstall it. The Stratix IV user's guide shows a 1 kΩ pull-down on the TCK pin for JTAG programming. You could always try it without it installed first.Regards,Matt Guibord
View ArticleForum Post: RE: AIC34_EVM_AVDD_DAC_3.6V
Hi Mushtaq,The AIC34 EVM has jumpers that can be removed allowing any voltage to be inserted to Avdd (See jumpers 5, 7, 8 in the EVM schematic). In general though, any common mode voltage can be set...
View ArticleForum Post: Overclocking 1.5 Gsps ADCs at 1.6 Gsps
Is it possible to reliably overclock the ADC07D1520 which has a 1.5 GHz maximum specified sample rate at 1.6 GHz?Can the ADC081500 or ADC08D1520 be reliably clocked at 1.6 GHz? They have a 1.7 GHz...
View ArticleForum Post: Why does LMP90100 give random results on the very first read?
We have found that the very first read of the LMP90100 after changing from one channel to another randomly drops or adds a most significant bit to the data. We have worked around it by *never* using...
View ArticleForum Post: RE: ADS1248 SPI timing problems
Hi Joannes,You can only read and write registers with the Start pin high. The Start pin acts as a power down for most of the internal circuitry. With Start low, you can issue certain commands such as...
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