Does anyone know what the -1B suffix on the [OV05640-A71A-1B] OmniVision image sensor (OV05640-A71A-1B OmniVision Technologies Inc | Sensors, Transducers | DigiKey) means? We have a design that works with the non-1B part, and want to be certain the new chip will be OK without software or, even worse, hardware modifications. We’re about to do another production run and need to know how safe it is to commit to this different part number.
There is nothing in OVT’s datasheets other than a comment of “updated to -1B ordering code”, and there is no breakdown of the meaning of various elements of the ordering codes. Web searches and attempts to contact OVT directly haven’t yielded anything either.
My attempts to contact the manufacturer at a few different email addresses were unanswered, and it looks like the Digikey rep didn’t find anything out, either.
Based on looking at datasheets of other parts from OVT, I was 90% certain that the change of suffix indicates a new revision of the silicon, but found nothing saying whether or not there was any effect on the electrical or coding aspects of using the chip.
We ended up taking a chance and purchased the chips with the new code, as it was the only thing available without crazy prices. Due to a few other distractions we haven’t got them into production (or even prototype) yet, but perhaps in May/June I will be able to report back how they worked out for us.
Upon consulting with the Product Manager, I learned that the OV05640-A71A part is the old version and is obsolete, and the manufacturer released the replacement OV05640-A71A-1B. The suffix “1B” was added to the new part number to indicate that it is the replacement.