Input Biasing of AD8367
Hi, Is the AD8367 to be optimally biased at zero volts or half Vcc? Does it require zero volts dc? Must the inputs be ac coupled? Regards,rigustafson
View ArticleReading a configurable setting from external HW into software ?
Hi, I'm building a customized board based on the SHARC 21469 DSP. Is it possible to hook the DAI up to an external pull up resistor with a switch and read the setting of that switch (0 or 1) from the...
View ArticleClik here to view.
Re: Input Biasing of AD8367
Hi, The AD8367's signal input (pin 3) presents a nominal 200 ohm resistance to ground -- thus it expects a ground-referenced input. If you're feeding it from a ground-referenced source (for...
View ArticleRe: ADM811 resistive divide usage
Dear Mr.Ren Thank you very much for prompt and helpful support.I worried about transient current increase or something.but I'll try. Regardsmoto
View ArticlegnICE in SHARC processors
Hello, Anyone has experience using gnICE with SHARC processors? I'd like to know if it's possible to download a dxe file through the gnICE JTAG interface into any SHARC processor, specifically...
View ArticleRe: IC for pi/2 phase shift?
Hi Ahbie, Any updates? Or if you could recommend me a tunable quadrature phase shift circuit? Thanks,Mayank
View ArticleRe: CN0332: Magnetoresistive (MR) Rotational Speed Sensor
Hi can i use this to sense the AC fan motor rotational speed?
View ArticleRe: what's the difference between the application for sigma studio version of...
Additionally,in my normal code of project codes like CYCLES_PRINT(oCycleCntStats); is disable,and not any information will be printed onto console dialog.Regards,Liang
View ArticleRe: AD7993 I2C ACK problem
Hi, Have you tried connecting AS to GND and run the correct address? Please do and take snapshots of the result. Thanks. Regards,Jonathan
View ArticleRe: Data of temperature drift about ADV7393
Thank you for your quick response. Best regards
View ArticleRe: in and out impedance
Hi Dave, Thanks. As for these speed higher than 100MHz, suggest to put the in/out impedance characteristic in D/S. Regards,Jason
View ArticleRe: AD9910 Gerbers
Yes, Sure.We'll get back to you asap once we got it from the layout designers.Thanks for understanding.
View ArticleRe: AD9954 modulate issue
I don't think it has something to do with being synchronous or a synchronous. Its just that, when you have different clocks, they have the tendency to cause modulation and mixing to other signals in...
View ArticleRe: ADAU1452 FFT Library
Hi, Could you please let me know regarding the number of points of the FFT.I'd like to use 256 Point FFT. Can I use this library module? Best regards and wishes,
View ArticleRe: 给的例子怎么有错误啊
Sorry - no one who works on the HDL is fluent in Chinese. Can you ask the question in English? Thanks-Robin
View ArticleRe: ADV7611 disordered when input signal unstable
Hello, DaveD Thank you for your reply.as your mention, glitching on the TMDS signals could also cause this kind problems.as this problem occure, TMDS_PLL_lock status is locked and Free run bit isn't...
View ArticleThe max value of delay module
Hi,I used the ADSP 21469 EZ-Board and Sigma Studio for SHARC 2.1.0 . I want to change the max value of delay module, but the max value is fixed to 1500. Could I change this max value? Because I need...
View ArticleRe: ADE7880 xVGAIN
Hello Bastler, Your equations are correct, these formulas are different interpretations of the same formula but it is their use that varies. The one you have labeled as equation 1 would be used to find...
View ArticleClik here to view.
Help debug ADP2370 (fixed 3.0V) but getting 1.6V out
Hi,This is the schematic and just today we got our board and after soldering the buck converter(ADP2370-3.0V) I was surprised to see 1.6v across the capacitor (C1) while I was supplying clean 6.0V DC....
View ArticleRe: AD8264 OFSx bias current
Hi, Unfortunately, we don't measure the bias current of OFSx pin. I think that, as you pointed out, you can assume that the bias current of this pin is less than the bias current of VOCM pin. I think...
View Article