Forum Post: RE: LM98725: Random noise patterns in bias frames
Hi Terry, I have couple of general questions: 1) Input is AC coupled in CDS mode? 2) 2.4V is the peak to peak input signal dynamic range? 3)That's any significant signal variation over the length of...
View ArticleForum Post: RE: LM98725: Random noise patterns in bias frames
Hi Costin, 1) Yes, it is AC coupled in CDS mode. 2) The signal level is adjustable via an external gain control, but is typically about 2v P-P. I have used both 1.2 and 2.4v input settings with similar...
View ArticleForum Post: RE: LM98725: Random noise patterns in bias frames
Hi Terry, Correct me if I misunderstood, are you getting same horizontal bands when inputs are disconnected with same clock? Seems to me external noise at the input coming from the board, an FFT of the...
View ArticleForum Post: RE: LM98725: Random noise patterns in bias frames
Hi Costin, Yes, if I disconnect the input from the CCD, the bands are more clearly visible - the CCD read noise helps to mask them. It is almost as if the A-D bias offset is randomly shifting by a few...
View ArticleForum Post: RE: LM98725: Random noise patterns in bias frames
Hi Terry, How clean is A-D reference(VREFB,VREFT)? Another possibility is a timing issue, PLL not working properly. The wait time after INCLK or after soft reset should be 50mS. One suggestion is to...
View ArticleForum Post: product to use for image processing
which TI product should we use to monitor growth of crops with image processing techniques ?
View ArticleForum Post: RE: LM98725: Random noise patterns in bias frames
Hi Costin, The A-D references are only connected to 100n decoupling capacitors and have no other external connections. I did try adding 47uF to each pin, but to no visible effect. The lockup time...
View ArticleForum Post: VSP5610: Reference design, SPI registers, configuration example etc.
Part Number: VSP5610 I'm considering the VSP5610 (5611, 5612) for a project. The datasheet is definitely not enough, is it possible to get the rest of the documentation and probably a reference design?...
View ArticleForum Post: RE: product to use for image processing
Hello, Thanks for using the TI E2E Forums. In answer to your question, please do a Google search using keywords "image processing TI" and you will find a wealth of information on TI products for image...
View ArticleForum Post: RE: VSP5610: Reference design, SPI registers, configuration...
Hello Ferenc, I am closing this thread since you are already having the conversation offline with my colleagues.
View ArticleForum Post: LM98725: Dead frames using the LM98725
Part Number: LM98725 NOTE : This post is duplicated in the following link (the forum didn't let me post the thread linked to the LM98725 part in the "Imaging AFEs Forum"): e2e.ti.com/.../620332 Hello...
View ArticleForum Post: RE: LM98725: Dead frames using the LM98725
Thanks Inaki! We will continue our conversation on the other post. Hopefully now that this post is in the correct forum, we may get responses from the community as well.
View ArticleForum Post: Designing a 128 channel Ultrasound Imaging System using the...
Hi all, I'm looking to create a 128 channel ultrasound system using the AFE5809 for the receive system, the LM96530 as the T/R switch, LM96550 as the pulser, and LM96570 to beamform the pulse. An FPGA...
View ArticleForum Post: RE: Designing a 128 channel Ultrasound Imaging System using the...
This thread is a duplicate with original shown below--closing thread. e2e.ti.com/.../2328137 Sincerely, Olu
View ArticleForum Post: VSP5612: Are there an application note?
Part Number: VSP5612 Hi,support team, Are there an application note? End custormer need to application note.
View ArticleForum Post: RE: VSP5612: Are there an application note?
Hello Kanishiichi, Unfortunately we do not have an application note available for the part. Can you please elaborate on the details that the customer is looking for in the application note?
View ArticleForum Post: LM98555: About package information(outline , dimension)
Part Number: LM98555 Hello, Do you have a package information(outline , dimension) of LM98555 ? It is not described in datasheet. Regards, Tao2199
View ArticleForum Post: RE: LM98555: About package information(outline , dimension)
Hi Tao2199, Looking at the TI packaging page ( www.ti.com/.../searchtipackages.tsp ) for the package number DCA0064A (as seen in the LM98555 datasheet) gives this result: www.ti.com/.../mpds357a.pdf...
View ArticleForum Post: VSP5611: Incomplete datasheet
Part Number: VSP5611 Hi Could please someone at TI send me the complete datasheet of the VSP5611 ? The LVSD data interface and serial control interface are not covered by the available datasheet....
View ArticleForum Post: RE: VSP5611: Incomplete datasheet
Hello Urs, Note that the VSP products are all Not recommended for New Designs. There is limited support available. If this is for an existing socket, then you should contact your local TI sales office...
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