Looking for a, ISP chip that can handle two 1080p60 streams

Petros Kavvathas

Other Parts Discussed in Thread: TDA2

Hello,

I am building a stereovision setup that will use two 1080p60 camera sensors that will either use MIPI CSI-2 or (SUB) LVDS.

The ISP chip should be as cheap as possible and handle the two streams so that it can give them to a main processor that will run algorithms to determine the depth.

It should have these protocols: CSI-2, LVDS, USB and PCIe.

over 6 years ago

0 Brijesh Jadav over 6 years ago

TI__Guru**** 479875 points

TDA2Px

0 Petros Kavvathas over 6 years ago in reply to Brijesh Jadav

Prodigy 110 points

I see that many of the TDA2 and TDA3 chips have multi camera interfaces, how would I know that the TDA2Px chips are the best ones?
I am also planning on adding an IR pattern chip like the Panasonic Grid-EYE and the SoC should include a timestamp as well.

0 Brijesh Jadav over 6 years ago in reply to Petros Kavvathas

TI__Guru**** 479875 points

Hi,

Both TDA3x and TDA2Px support CSI serial as well as parallel input interface. On CSI input interface, we could interleave frames from multiple camera and both of these devices can receive them and demux them..
There are multiple parallel interfaces supported and you could connect one camera to each of these parallel input paths.

Rgds,
Brijesh

0 Petros Kavvathas over 6 years ago in reply to Brijesh Jadav

Prodigy 110 points

Thank you for the asnwer. However, I see that most camera sensors that can capture 1080p at 60 fps use the SUB LVDS serial connection, for example the Sony IMX265LQR (www.sony-semicon.co.jp/.../industry.html)

We are looking to add a third camera for NIR (which will most likely be the same sensor) or an other use.
Would it still be possible to use a TDA chip to capture that simultaneously?

0 Brijesh Jadav over 6 years ago in reply to Petros Kavvathas

TI__Guru**** 479875 points

You would require external device to convert from LVDS to CSI..

Rgds,
Brijesh

0 Brijesh Jadav over 6 years ago in reply to Brijesh Jadav

TI__Guru**** 479875 points

Sorry, you would require external module to convert from LVDS to CSI/Parallel. Three cameras are possible to capture over CSI..

Rgds,
Brijesh

0 Petros Kavvathas over 6 years ago in reply to Brijesh Jadav

Prodigy 110 points

Thank you for the response. As seen in paragraph 6.1 from the TDA2Px datasheet
"And the TDA2Px SoC also integrates a host of peripherals including multi-camera interfaces (both parallel and serial) for LVDS-based surround view systems, displays, CAN and GigB Ethernet AVB."
Wouldn't this mean that I don't need the LVDS to CSI/Parallel converter?

0 Brijesh Jadav over 6 years ago in reply to Petros Kavvathas

TI__Guru**** 479875 points

Hi,

I think it says it supports multi-camera interface for LVDS based surround view systems, but it requires external device (ub960) to convert from lvds (FPD Link III) interface to CSI interface..

Rgds,

Brijesh

0 Petros Kavvathas over 6 years ago in reply to Brijesh Jadav

Prodigy 110 points

Thank you, this clarifies a lot. This chip is exactly what I need to bridge the sensors before the ISP chip. It's difficult to find an ISP that supports such inputs simultaneously without looking at FPGAs.

0 Brijesh Jadav over 6 years ago in reply to Petros Kavvathas

TI__Guru**** 479875 points

Hi Petros,

Please close the thread if your question is answered.

Rgds,

Brijesh

0 Petros Kavvathas over 6 years ago in reply to Brijesh Jadav

Prodigy 110 points

I do have one more question regarding to this chip. Is FPD Link III the same as LVDS? In other words, can I directly connect a LVDS camera to the ub960 chip?

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Looking for a, ISP chip that can handle two 1080p60 streams