Re: About AD9889B_Initial_Preset_values question
Hello, Go with the Programming Guide-- it's far more recent. Dave
View ArticleRe: invalid or corrupts ramdisk??
Ali: It shouldn't be booting from a ramdisk - it should boot from the ext4 file system on the SD card. It's likely the kernel command line inside U-Boot. -Robin
View Articlehelp a rookie out part 2
related question: http://ez.analog.com/message/138883 So I am doing shock testing using an ADXL001-500 and a DAQ (links to data sheets below) and I get the feeling that I something is not going quite...
View ArticleRe: AD9361 as a loadable Linux Kernel Module?
Stephen: I hate to ask the obvious - Did you try just selecting it as [M]? I think you should end up with a .ko Michael will know for sure. -Robin
View ArticleRe: FMCOMMS1 ACCESS TO AD9523 REGISTER
Did you try plugging in the HDMI monitor, and keyboard mouse? http://wiki.analog.com/resources/eval/user-guides/ad-fmcomms1-ebz/quickstart/zynq Thanks-Robin
View ArticleRe: VDK accessing multiple SPI devices
Hi There Tim. Craig asked me to chime in on these SPI questions... Regarding the most recent question, your configuration is correct to enable the SPISSEL5 as a SPI signal, and it is the signal that...
View ArticleRe: AD9361 Fast AGC mode question??
"AGC Lock Level" is typically set to -10dBFS. You have to set the threshold levels correctly. The gain will be adjusted by AGC as close as possible to the AGC Lock Level. RSSI depends on the gain...
View ArticleRe: ADE 7880 Accuracy Issue
Hi Heimo The reason I ask for energy measurements is to understand why you think inductive case is erroneous. From above data, it is clear that the sign of the error changes when you switch from...
View ArticleLeakage on ADG732
I am using ADG732 as a de-mux on a couple of my projects. in an open socket condition, when I force current I notice a leakage on the input pins even though I should be hitting the programmed clamp. By...
View ArticleRe: OP37
Thank you very much!!! Your hack works well so far and the system is running great!!!
View ArticleQuestion Regarding AD8339
Hello to everyone in Engineer Zone, I wish to post a technical inquiry about the AD8339. According to the datasheet for product AD8339 Revision B on page 29, and with reference to the section "using...
View ArticleRe: SDRAM interconnections on Blackfin
Hi Sunil. Your connections appear correct as is and do not require the proposed connection between A0 and /ABE3. If you consult the BF561 EZ-KIT schematic, you can compare the devices we use there...
View ArticleRe: OP37
Thaddeus, You're welcome!! One little tweak. The thermal noise of a 10k resistor at room is about 12 nV/rt-Hz.The OP27 flatband noise is about 4 nV/rt-Hz, so you are not taking advantage of the op...
View ArticleRe: OP37
Thaddeus, The title is OP37, but your schematic shows OP27. The pc board photo looks like an OP37.You are onlly running a noise gain 3-4 so you really need an OP27. The OP37 should oscillate.If...
View ArticleMod/Demod IQ Selection
I'd appreciate a recommendation of your mod & demod chips (even better if you have mod/demod IQ to 2.4GHz RF in one chip - we'd just drop two of them down to cover the MIMO requirement.) We aren't...
View ArticleRe: My DSP/DAC Project
You really need to have four layers so you can have either two ground planes or a ground plane and a power plane. This is required to keep the impedance on the signal lines somewhat constant. The...
View ArticleRe: FMCOMMS3 with KC705 eval
1. Yes- you can simply insert any processing entities on that path. It runs approx. at 250MHz/16bits of I/Q each (64 total). The effective rate is about 62.5MHz. Make sure your entities are capable of...
View ArticleRe: AD8310 slope temperature stability
Hello Johann, I'll start off by saying I don't think we have distribution data over temperature and frequency for the AD8310. Having said, I think we can piece together a pretty good idea of how much...
View ArticleRe: Blackfin Hibernate Hardware
Hi Ian. The reason for this is due to the inner workings of the Blackfin processor itself. Intuition would suggest exactly as you detail above, but the part you are missing is perhaps lost in context...
View ArticleRe: ADE7953 SPI Problems
Hi DDSchrader Good to hear that your problem has been resolved! For calibration process and register setting details, this App note will guide you step-by-step. Calibration is for removing fixed system...
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