Re: slow reads from 21489 SDRAM?
I haven't used plain vanilla SDRAM for a while, but as I recall it takes about 5 SDRAM clocks for the first read. SDRAM operates at a lower clock than the Core so each SDRAM cycle is going to take more...
View Article(ADV7282-M)Can I use Diag-pin when I'm using CVBS(single)?
Hello! I have a few questions about ADV7282-M. 1)Can I use Diag-pin when I'm using single-ended CVBS ?If I can use Diag-pin , could you tell me how to use it? 2)If I can't use Diag-pin , should I leave...
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Re: AD8062 Sync Stripper
Dear Sir, By doing shorting out R58, R60 and R70/ Remove R52, R88 did not improve on signal quality. I have tried improving the Voltage Gain of the Op-amp and from that I could able to reconstruct the...
View ArticleRe: adv7842 pixelclock (LLC) noise/glitch
Hi Guenter, I would like to add some more explanations to this issue: 2) No, it is not reflection. The 'glitch' can be moved by altering the phase delay of the ADV7842 outputs. Hence it is not clock...
View ArticleRe: Gound of ACDMP6XX
Hi Junwei, Ground pin of ADCMP6xx should be connected to analog ground. And for the ADCMP601, the power pin should be connected to a dc supply voltage level as specified in its datasheet. Regards,Jay
View Article[AD5592R]Input Impedance value
Hello,I would like to know AD5592R's input impedance value when I/O is configuration as an A\D input pin.There seems no information on Datasheet. Thank you for your help in advance.Best regards,Sofy
View ArticleRe: slow reads from 21489 SDRAM?
Hi Dave, If you are sequentially reading the data ( DMA reads or any back to back reads) you might benefit by enabling SDRAM Read Optimization. To achieve better performance, read addresses can be...
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Re: slow reads from 21489 SDRAM?
Jithul's suggestion is helpful, but only if you can set up to do sequential reads. Dave's early comments suggests random access. If this is the case, you either need to live with slow reads or figure a...
View ArticleRe: Problem of ADAU1401 working at 192kHz sampling rate
Dear Dave, Thank you very much. Firstly, I use SigmaStudio to program the part indeed. Then, I have compiled/linked/download again, when changing the sampling rate. I already attached the...
View ArticleRe: AD9364 Init Config Issue
Hi Dragos,Thanks for the reply.I am generating signal tone from an FPGA using the DDS IP core. But the configuration of the AD9364 will be performed by BF538F. I have imported the AD9361 No OS drivers...
View ArticleRe: AD9364 Init Config Issue
Does RX will not work without successful configuration of ad9361_dig_tune()? Any other configuration is required apart from default_init_config?. I verified that it is RX mode i.e 0x14 = 0x43 Also in...
View ArticleAD7960 timing parameters
In table3 of AD7960 datasheet, there are two timing parameters tMSB and tCLKL. But there is no any information to explain how to slelect correct values for them. Should the maxiam values be OK? Or...
View ArticleRe: AD7147 SPI problem
OK it was indeed very suspicious and at the end I found out that the board was to blame. there was a connection problem to the pins.
View ArticleRe: CCES BF537 Flash Programmer Error
Hi Craig, thank you for your feedback. initialization file is different from flash loader file. I forgat this. Lets say due to be very busy nowadays.I downloaded BSP and re executed to the command with...
View ArticleRe: ADV7513 vsync, hsync, DE and the FLIR Tau2 sensor
First I'd like to point you to the bookVideo Demystified: A Handbook for the Digital Engineer, 5th EditionIt's an excellent resource on anything video and readily available from AmazonCheck out VESA...
View ArticleRe: (ADV7282-M)Can I use Diag-pin when I'm using CVBS(single)?
Yes that should work but I have not verified it on real hardware
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Re: Problem of ADAU1401 working at 192kHz sampling rate
Hello, To adjust the ADAU1401 / 1701 sample rate requires two settings -- the one on top of the schematic screen and another setting inside the Hardware Configuration / 170x \ 140x Register...
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Re: help for MOSEFT used in ADuM3223 Evaluation board
Hello RSchnell,Thank you for your fast response. Appreciate all your help and instructions. For 1), the input pulse voltage due to function generator has increased.For 2), I am using the differential...
View ArticleMEMs to measure shoot counter that support peak of +-1000g for 0,5ms?
Dear Analog engineer zone team, my costumer ask for shoot counter for his laboratory. I don't find MEMs that has a peak of +-1000g to detect peak of shoot.What happen if I use lower scale MEMs?I...
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