Re: Trouble writing some AD9361 PHY registers using libiio
It looks complicated, but it's just because I have helper functions and a lot of return codes and error handling I guess. Anyway, I changed one of my methods implementation to reflect something similar...
View ArticleADM7170, ADM7171, ADM7172 soft start
Is the soft start cap used to bypass the reference?Is there a max SS cap I can use?The description says also that SS needs to be left open when not used, but could the SS pin be used also as a REF in...
View ArticleRe: Parallel DAC with High Voltage Output (+18V)
Thank you Mark. I haven't found any other way to give negative reference as Vref so I am fine with the inverting opamp method. I still have some doubts. I need to generate Vout from 0 to +Vref (+18V),...
View ArticleBF/VDK - Changing stack pointer on ISR entry
Hi, I have a multi-threaded VDK project in C running on a BF518 platform. Each thread has its own stack space on the heap memory (placed into SDRAM). This stack space is also used by the interrupt...
View ArticleRe: Debug data on DAC is not same as debug data on ADC?
Hi Mohd, There are many factors that change the signal as it goes from the DAC to the RF back to the ADC. So if you need to get the same digital signal back there are a lot of signal manipulation and...
View ArticleRe: AD9625 + HSC-ADC-EVALEZ
Hi Ian, Thank you for the email. Can we continue our discussion on the FPGA HDL code offline? Thanks!Rosanah
View ArticleADF4360-9 Minimum components needed when not using RFout A or B
We are using the ADF4360-9 in an application that only uses the DIVOUT signal and does not make use of the RF output pins A&B. Can these pins be left unconnected? If not, what are the minimum...
View ArticleRe: AD5700 Carrier Detect Off Timing issue
Hi, The figure you're pointing out is the end of the HART communication which is the period between the valid carrier being present and the CD pin being disasserted. The HART specifications allow a...
View ArticleRe: ADM7170, ADM7171, ADM7172 soft start
Luca, The SS pin was never intended to work this way so we'd have to test it in the lab to see what happens. Here's a brief explanation of how the SS pin works... The SS cap does not bypass the...
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Re: ADF4351 PLL programming question
Yes, they said they provide support only for using complete USRP software defined radio kit. I am only using their transceiver. That board has 2 PLLs and both show same error so I think I am missing...
View ArticleRe: Using a iCoupler gate driver as a solid-state relay
Thanks Sherry, It is a very workable solution, but only cost effective for high power applications like line voltage and multiple amps. MSCantrell
View ArticleADV7619 VSYNC output issue
Hi, I am using an ADV7619 to receive 4k HDMI signal. It's pixel bus is configured in 2x24-bit 4:4:4 SDR interleaved mode. The pixel bus is connected to an FPGA. I have an issue, that sometimes, when I...
View ArticleRe: AD22302 fourth generation i-MEMs : sensor axes orthogonal ?
Hi Didier, i-MEMS is an ADI proprietary process of integrating sensor and electronics on the same die. We have recently moved away from that for some of our products. So today our products are a mix...
View ArticleThread and Heap management functions in CCES?
Hi, I'm migrating a project from VisualDSP++ v5.0 to CCES v1.0.3 and there are a few functions that were used as part of VDK that I have been unable to find an equivalent to when using uCOS-III and...
View ArticleRe: ADXL 212 : Alignment error between X and Y : a mistake ?
Didier, The 0.01deg is typo sorry. The correct value is 0.1deg. regards,Venkat
View ArticleRe: ADRF6518 output noise, dBV/Hz or dBV/sqrt(Hz)
Hi Donald, Let me confirm this, but I'm pretty sure it is dBV/sqrt(Hz). This is in contrast to the dBm/Hz that people have traditionally worked in. This is because the dBV/sqrt(Hz) is basically just...
View ArticleRe: Parallel DAC with High Voltage Output (+18V)
Hi Mark, sorry I framed my last question wrong. I meant to say though I have power supply upto +18V from a LDO for the opamps but maximum available precision voltage reference available is +10V given...
View ArticleRe: ADXL... accelerometers : 0g drift equal or different between X and Y ?
Didier, Sorry I didn't fully understand your question. Are you looking for a way to calibrate offset of the individual axes? Any initial offset calibration that is performed will hold irrespective of...
View ArticleRe: Is AD8302 a lock-in amplifier?
Hi Andy, The AD8302 is not a lock-in amp, or at the very least, it is best not to think of it as such. The phase detector is an XOR style that basically detects the zero crossings of the limited...
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Re: Increasing phase measurement accuracy around 0/180/-180 degrees for AD8302
Hi Andy, Here's the answers to your questions: 1) You cannot fundamentally increase the accuracy at 0, 180 and -180 degrees of phase. The accuracy is what the accuracy is, and is inherent in the XOR...
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