ADAU1401 crystal oscillation
The ADAU1401 is used in car infortainment project together with NXP tuner. The main problem is from the DSP Crystal frequency, as long as the crystal oscillates it will affect the FM freq at 98.3MHz. I...
View ArticleRe: IIC low level access, Zynq and ADV7511
Dragos, I see library functions used in transmitter.c which seem to refer to low level IIC access. These would be ‘HAL_I2CReadByte, HAL_I2CWriteByte’, etc. Could I use these to address the ADV7511,...
View ArticleRe: ADV7842 Latency Questions [ADV8003 used as well]
1) I do not have any hard delay number for the 7842 IP module however worst case latency is at least one incoming line time. 2) There's is not real difference between the two approaches, you still have...
View ArticleADV7280- BXL file missing (2)
Facing some problems with replying to discussion.From my previous post- ADV7280- BXL file missing . Is it available now?
View ArticleRe: ADV7280- BXL file missing (2)
I've asked the group that manages that tool but haven't heard back that it's done yet. I assume it's not yet available. Dave
View ArticleRe: Help w/ ADSP-21489... DUAL SIMD MAC 40bit Floating Point
Hi, Thank you! There is also another one in the Revision 2.4, April 2013 reference that plainly states: SIMD mode operation is only supported in NW and SW space, i.e., SIMD operations cannot exceed the...
View ArticleRe: Help w/ ADSP-21489... DUAL SIMD MAC 40bit Floating Point
Hi Jithul, In keeping with the 64-bit width limit (SIMD or not), please help me use 40-bit FP variables (since they encode 9+ decimal digits) in an efficient way that does not attempt to use SIMD and...
View ArticleRe: Is it REALLY need to use some physical filter before ADC in AD9467-FMC??
Hi Cybel, What input are you providing the signal to? You should be providing the signal input to J100. Please confirm. Also please confirm that you are providing a 250MHz clock signal to J201....
View ArticleRe: CN0326: Isolated Low Power pH Monitor with Temperature Compensation
Hi Gowrishankar, Below are the answers to your inquires. 3. High insulation resistance standoff and shielding will vary depending on the environment where the kit will be used. It is highly...
View ArticleADAS1000 RLD + CM
Hello,I have a few questions about the ADAS1000 RLD + CMThe DB15 connectors has the following connections for pins 7 and 14Pin 7 - CE - Common Electrode, Master CM_INPin 14 - RLD - Right leg drive,...
View ArticleAD8280: (Apparent) inconsistencies between AbsMax and data sheet
Dear all, We have selected the AD8280 as a secondary safety monitor in our BMS for a LiFePO4 stack. In working on the design I have run into a few apparent internal inconsistencies in the data sheet...
View ArticleAD7608 - Can I samples 6 channels at 250 KSPS?
The AD7608 can sample 8 channels at 200 KSPS per channel. I assume the SAR converter is running at >= 1.6 MSPS internally. I need a faster sampling rate on 6 channels. Can I samples six channels...
View ArticleRe: ADAV801 ALC2 register settings for a suitable speech regulation
Hello Dave, thanks for the reply. The issue is still open. The audio source is a helicopter pilote voice in a noisy environment. Normally a strong signal, but the audio level is not well defined. The...
View ArticleRe: AD9957+ADF4351+ADL5801
Yes, the arrows on the board layout point to the GND layer. I don't follow your comment about pins 2 and 4. Are you populating the balun in the placeholder with the orientation depicted in the picture,...
View ArticleRe: Troubles using the ADE7880 Evaluation board with an external MCU (I2C)
A different eval board, and a different IO bus, but I had very similar problems driving the SPI bus externally on the 7816 eval board. My solution was the same as the one you discovered and is...
View ArticleRe: Linux driver for the Vivado AD9361 Interface Block in Linux
Stay tuned - two teams - one always behind. -Michael
View ArticleRe: ADT7420 Temperature Range
Actually, and based on my knowledge, exposing the part to that temperatures may not cause a big damage, or apparently will not shorten its lifetime. But it wasn´t characterized in that conditions, so...
View ArticleRe: Wrong mode register value from AD7730
I applied a 800usec clock whenever the chip was idle. DIN was high. So, I always reset the chip. I changed the code to reset the chip not so often, but the problem still happens The following is the...
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Re: ADAU1401 crystal oscillation
Hello keddy, A measured ADAU1701 EMI spectrum appears below:We see the crystal’s 12.288 MHz fundamental frequency at A, but virtually no second or third harmonic at B and C respectively....
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