Re: Wrong response in ADF4360-0
I get that the bottom PCB is ground, but without the vias the top doesn't get to the ground. It is hard to see from the pictures on UG-095, but I believe there are vias under the package and closer to...
View ArticleRe: the SPI Communication Problem with ADRF6806
Hi Joel:Thanks your help.Yes my PFD frequency is 20 MHz.There is no low pass filter on the spi Port .But I decrease the high level to 2V ,It's work. I think the "1" logic is higher before,so I have to...
View ArticleRe: CN0325: PLC/DCS Universal Analog Input Using Either 4 or 6 Pin Terminal...
Very appreciated for your questions. pls find my comments on your question sequently. Yes, actually we provided two ways to clamp the differential input common voltage to 2.5V, one way is to use...
View ArticleAD7190/AD7192 Unipolar operation with Buffer
Dear All, I am looking at using the AD7190/AD7192 for an application where I am measuring a ratiometric sensor from 0.3 - 4.7V. The RC time constant of the output bandwidth limiting filter exceeds the...
View ArticleWhat beats are the norm for the ADC ADuC706x
Hello! I need help!Setting ADC: IEXCON = BIT1 + BIT6;// Enable Excitation Current Source 200uAADCMSKI = BIT0;// Enable ADC0 result ready interrupt sourceADCFLT = 0x7F + (1<<7); // 50Hz no...
View ArticleRe: VisualDSP++ 3.0 Install
Hello, Thank you for your support.I found the legacy documentation of the VisualDSP++ 3.0."Product Bulletin for SHARC® DSPs"Revision 1.0, January 2003 Part Number 82-000321-01Attached file name :...
View ArticleRe: AD4351 evaluation board: Phase Noise and spurs
Some things we learned while evaluating the 4350 a while back:1) For wideband operation, replacing the RF output bias inductors with 50-ohm resistors (i.e. L2 and L3) works best (UG-435 now carries a...
View ArticleRe: AD9559 : 0.1Hz loop bandwidth
Hi Paul, Thank you for your advice. The system clock source is 12.8Mhz tcxo from Rakon E2747LF.We already use this tcxo in our different product and pass the G.8262 test cases. The EEC1 require 4Hz...
View ArticleAD9959 Single-Tone Mode,Power-Down Functions,Phase continuous ?
Hello, In operating in single tone mode, I use a power-down function of the software, and want to control the on / off DAC output(power-down) to each CH. For example, the following is the setup...
View ArticleRe: Eval-AD7609EDZ use in standalone
Hi, Table 1 of the technical note that came when you installed the software for the EVAL-AD7609EDZ lists the board's link options. It details how the eval board should be configured with the...
View ArticleRe: AD7699, Temperature measurement
Yes, we're using the internal reference. On a board at room temp (cool to the touch):And I should have said 0.1 C/V. ADC says about 5000 5000*4.096 / 65536 = 312 mV (312-283)+25 = 54, no way!...
View ArticleRe: LRCLK, BCLK buffering? EMC aspects
Hello jorpese, Actually, the rise time of the buffers are not going to be the controlling factor. It is good that they are capable of going really fast but they will only be as fast as the signal...
View ArticleRe: AD9361 No-OS Driver RF Bandwidth Parameters
Sorry but you already got the answer -All filters are programmed in accordance with the filter and calibration guide.It doesn’t matter which driver you use Linux or NO-OS - they all do the same. I...
View ArticleRe: AD7699, Temperature measurement
Hi Frank,The slope from the above graph is around 0.75 mV/C, which was collected using a 5V external reference. There seem to be a difference in the temp sensor output as you have noticed and as...
View ArticleRe: AD-FMCOMMS1-EBZ REF DESIGN- MODIFY+REBUILD
rejeesh: My attempt at getting the loopback to work has failed. I believe I followed your suggestions per previous thread in this discussion. 1) Output doesn't seem to follow input. Doesn't seem to...
View ArticleRe: SSM2142 Absolute maximum rating of the input pin.
Hello you-i, You are right it is not explicitly given. However we can infer what the specification would be. First of all the output of the part will clip at 10.5Vrms with 18V rails. This is +- 14.847...
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Re: Need Help: Data acquisition by ADIS16135 MEMS gyroscope
Thanks for posting this update. That helps a lot. Yes, I can confirm that the data in the GYRO_OUT column is in deg/sec. I used a standard deviation on your data and came up with the same number you...
View ArticleRe: AD7699, Temperature measurement
Hi Maithil, The difference between 1.0 and 0.75 is not too bad for a value-added feature, I agree. But what the other 2 users and I are seeing is that the 1.0 on the data sheet is more like 0.1. I...
View ArticleRe: FSK Modulator on FMCOMMS1/2
I would really like to move a module into hardware but I am not sure how to add my demodulator to xps project if I can do that I should be able to hit the data rates.
View ArticleMeasuring rolling distance
I have a application where I want to roll a ball into a fixed object that holds an accelerometer and be able to predict how far that ball would have rolled until it comes to a stop. Can the force...
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