SERDES device compatible with Video over SPI (VoSPI) interface

Jorge Rive

Prodigy 200 points

Other Parts Discussed in Thread: DS90UB947-Q1, DS90UB948-Q1

I'm looking for a SERDES solution that would enable the connection of a thermal camera with VoSPI. Any suggestions ?

over 3 years ago

0 Casey McCrea over 3 years ago

TI__Guru** 103215 points

Hello Jorge,

What speed of SPI do you need for this application?

Best Regards,

Casey

0 Jorge Rive over 3 years ago in reply to Casey McCrea

Prodigy 200 points

the frame rate is 9 frames a second, and the frames are 16-bit, 160*120 frames, so about 2.8Mbits/sec..

+1 Casey McCrea over 3 years ago in reply to Jorge Rive

TI__Guru** 103215 points

Hello Jorge,

My understanding is that the VoSPI device always acts as a SPI slave and the data is accessed by SPI reads from the master device.

I do not believe we have a solution in that case. We can support SPI passthrough with a combo of DS90UB947-Q1 + DS90UB948-Q1, but the max SPI read speed is based on the max back channel rate of these devices. With max BC speed, plus accounting for the sampling rate of the SPI block and the round trip delays, the max speed we can achieve for SPI read transactions through the SERDES link is 1.3Mbps.

I am not aware of any other TI solutions

Best Regards,

Casey

0 Jorge Rive over 3 years ago in reply to Casey McCrea

Prodigy 200 points

Thank you!

Interface

Interface forum

SERDES device compatible with Video over SPI (VoSPI) interface