Forum Post: LM96551 Power Supply Suggestions
Hi, I'm working with the LM96551 Ultrasound Pulser in a novel industrial application. I am having some doubts / constraints about the viability of economically supplying power to this device (along...
View ArticleForum Post: RE: LM96551 Power Supply Suggestions
Hi Stomp, There is an example power supply schematic for the LM96551 . There is a document named 'power_module_Dec-2010_TI_disclaimer' in the zip file. Regards, Charles
View ArticleForum Post: AFE5809, demodulator and sync word
Hi, I am working on a design with the AFE5809 and I see an odd behaviour regarding TX_SYNC_IN and the synchronisation word. The FPGA interface with the AFE5809 is very similar to the one used on the...
View ArticleForum Post: LM9833
What is the output of LM9833 and where to see it is this IC pre programmed if not how to use this IC
View ArticleForum Post: RE: LM9833
Navaneeth, I'm moving this post to the Imaging AFEs forum. Someone should respond back to you soon.
View ArticleForum Post: RE: LM9833
Hello, To answer your questions: 1. What is the output of LM9833 and where to see it? Response : The 16 bit ADC data output(s) of the LM9833 are on pins D0 (LSB) -D15 (MSB). 2. Is this IC pre...
View ArticleForum Post: RE: AFE5809, demodulator and sync word
Hi Matteo,I have seen your post and will have an answer for this by tomorrow. Thanks,Chuck Smyth
View ArticleForum Post: RE: AFE5809, demodulator and sync word
Hi River, thank you very much. Yes, using profile RAM all 8 channels are synchronised. Do you know why only using profile RAM and not manual decimation factor, etc? Regards, Matteo
View ArticleForum Post: RE: AFE5809, demodulator and sync word
Matteo, You can use manual decimation. In datasheet it says profile ram has no default value, so you need configure it even it has all zeros value.
View ArticleForum Post: ADS1298R in Continuous mode Samples problem
Hi, Am using ADS1298R in Continuous mode. I configured it for 500 SPS in High resolution mode. I get the 27 bytes data through SPI and from them I have split the Lead1 and Lead2 data. But when i...
View ArticleForum Post: LM98620, how to get LVDS output with "more stable" & "low SNR"
Hi, all: I tried to set the LM98620 to get a " more stable " & " low SNR " output. However, it's difficult to both achieve this goal ("more stable" & "low SNR") in my settings. Maybe I put some...
View ArticleForum Post: A peak interference phenomenon using LM96551/LM96530/AFE5803
Hi, I'm using LM96551 / LM96530 / AFE5803 to build a prototype. 8 channels of the LM96551 were parallel connected to excite a 2000pF ultrasound transducer. A picture below shows a received signal. A...
View ArticleForum Post: RE: A peak interference phenomenon using LM96551/LM96530/AFE5803
Hello, I've got a question regarding the load that the LM96551 sees in your system. You mentioned 2,000pF ultrasound transducer while we anticipate from 200-300pF for the equivalent capacitive load!...
View ArticleForum Post: RE: A peak interference phenomenon using LM96551/LM96530/AFE5803
Hi， Hooman. Thanks for your reply. I'm sure we use a single element ultrasound transducer with a 2000pF capacitive load. That is why we use eight channels of the LM96551 parallel to increase the drive...
View ArticleForum Post: RE: A peak interference phenomenon using LM96551/LM96530/AFE5803
Hi, Here are some suggestions: 1. Add 2.5k resistor to ground on each LM96551 output pin, as shown below. The internal clamping diode(s) on each LM96551 output (see Block Diagram image in the...
View ArticleForum Post: RE: A peak interference phenomenon using LM96551/LM96530/AFE5803
Hi, Hooman Thank you very much for your reply. Yes, the LM96530 outputs are AC coupled to the AFE5803 . You give me really good suggestions from hardware view. I will change the values of the two...
View ArticleForum Post: RE: A peak interference phenomenon using LM96551/LM96530/AFE5803
Hello, Unfortunately I'm not familiar with the operation of the AFE5803 and I cannot answer whether or not you need to do any high pass filtering in the software. Hopefully other people more familiar...
View ArticleForum Post: RE: A peak interference phenomenon using LM96551/LM96530/AFE5803
Phx, The AFE5803 has an AC coupled input and variable HPF in the LNA. The ADC also has a digital HPF. The analog HPF is recommended but let me know if you need to reduce the cut-off frequency. Thanks,...
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