Re: Does the AD9915 use a Sine or Square wave for its REF CLK?
Hi Quang, I'll go through on to what I've understand. There is an internal dc bias within the REF_CLK input which is 2V and this is specified in the datasheet. This is needed to satisfy the common mode...
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How to add InitCode into Uboot?
Hi, I have a problem in handing external watchdog reset. I use u-boot-2013.07-2013R1 for my bf512 board (with external SPI-Flash, external watchdog).The problem is I have not enough time to...
View ArticleHigh Speed DAC
Can anybody here suggest me a high speed parallel DACs that is well supported (technically) in this forum, actually i am newbie here need full support of you guys. Thanks.
View ArticleRe: AD9631 AUXDAC effects
Thanks for the information. One more question is that the range of the registers of 0x1A7 and 0x1A9 is 0 to -128dB with 0.5dB resolution. I am confused with two different calculation about the above...
View ArticleADV7391-CVBS output
Hi,My end customer use ADV7391 to do BT656 input and CVBS output,But look like has no yellow color, if use internal color bar test pattern,issue ths same.Do you have any suggest? RD Register set value...
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Re: AD9914 Negative Ramps
Hi Amchardy and Quang, Unfortunately the effect of using the image frequency to do initial ramp-down is you are dealing with lower power frequency due to the sinc response inherent to the DAC internal...
View ArticleRe: looking for automatic gain control (AGC) ic...
Hello, I would also like to suggest looking at the AD8338 low-power VGA. It has an AGC circuit built in, similar to the AD8367. Unlike some of the other suggestions, the AD8338 is ideally suited to...
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AD9914 JITTER ingredient solutions to minimize
<Reference>AD9914 Evolution Board with reference to the circuit designs Questions1SignaljitterthanexistingcomponentsWaver200 ~ 300PS. All I want istherea planto minimizejitter RED-...
View ArticleIBIS models for AD5441 & AD5446.
Hi Team, Our customer needs IBIS models for AD5441 & AD5446.I can't find them on the web.Where can I find them?Or what is an alternative thing? Regards,Tar-Bow
View ArticleRe: ADAU1772 SPI Boot from uC
Hi Robert, It looks like this is an old question, but I'll give it a shot. The ADAU1772 requires a single address byte, and unfortunately that's not configurable. That is true whether you use the I2C...
View ArticleRe: ADAU1772 SPI Boot from uC
Whoops, I forgot to post the link. There is a Blackfin community here:Blackfin Processors
View ArticleRe: Input signal protection on ADAU1761/1781
Hi chuckwin, It looks like this is an old thread, but I'll try to answer if it's helpful for you. I personally have fried a few ADAU1701s in my day. I believe there are internal overvoltage protection...
View ArticleRe: Input signal protection on ADAU1761/1781
I forgot to answer your question about thermal protection. Based on the datasheets, there is no evidence of thermal protection built-in to SigmaDSPs. However, the new ADAU1452 has an integrated thermal...
View ArticleRe: ADAU1452 evaluation board Manual and Schematic
Sorry to resurrect an old thread, but it looks like the user guide has been published!http://www.analog.com/static/imported-files/user_guides/EVAL-ADAU1452MINIZ_User_Guide.pdf
View ArticleRe: ADAU1445 I2C problems
Hi Marc, I don't have a lot of the hardware that would make it easy to perform this test, but I discovered a feature in SigmaStudio that makes it pretty easy to try this out. It's called the Sequencer....
View ArticleRe: ADAU1701 SigmaStudioFW.h
Hey Yagami; I will try to post some I2C data tomorrow. However, I am able to load the DSP enough to start up a simple program. [500hz sine wave generator, mute switch, DAC3 output] I also entered debug...
View ArticleRe: CN0326: Isolated Low Power pH Monitor with Temperature Compensation
Dear Sir, We are excited to see pH monitor with Temperature compensation application and would like to know more on this as below 1) This has reference to the configuration available in the evaluation...
View ArticleRe: Problem in output from CF pin of ADE7757 IC
Hi himani! 1- I have started getting pulses, don't know how.. And the pulses vary when the load changes i.e. they increase with an increase in the load and decrease when load decreases. The pulses stop...
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Re: Calculation of Current Power Usage in ADE7757
Hi himani! Thanks for the help You mentioned ripples. But I am not getting any kid of ripples on both CF and F1. I get square pulses with max 5V and min 0V
View ArticleRe: ADAU1701 I2C communication with mcu
Hi Yagami, thank you for your support! I shifted the slave address from 0x68 to 0x34 and they are finally communicating. I guess it's something with Arduino Wire library cause i had to bit-shift other...
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