AVT9152 Cellular IoT - Recent Threads

AVT9152 SAR testing?

gmonroe — Tue, 25 Jul 2023 16:19:23 GMT

I see in the FCC filing that the AVT9152 is not supposed to be used within 20cm of the body. I know this is a limit that triggers SAR testing. Can anyone tell me if SAR was just not tested on this device or if there were problems with it? We need to be installed closer than that. I want to make sure that we could move forward with our own testing as necessary as opposed to knowing that it will fail if we do test.

RE: AVT9152 SAR testing?

hpchia — Thu, 27 Jul 2023 03:25:44 GMT

No testing related to SAR was done previously. Other than that, the module (in particular nRF9160) conforms to 3GPP spec, and had passed corresponding FCC and CE's RF emission tests.

RE: AVT9152 SAR testing?

gmonroe — Wed, 26 Jul 2023 17:08:17 GMT

Do you know if anything has been seen in prior testing that suggests it might fail?

RE: AVT9152 SAR testing?

hpchia — Wed, 26 Jul 2023 03:24:37 GMT

AVT9152 had gone through Radio Exposure Evaluation (FCC 47 CFR Part 2.1091) for its embedded BLE module + antenna. Nordic's nRF9160 IC had also gone through FCC 47 CFR Part 2.1091. Based on the assessments, AVT9152 (with nRF9160 inside) is safe to be used at a distance greater 20cm from a user.

The module has not done SAR test as this depends on actual usage scenario - how the module is mounted in end device and its position to human body, type of LTE antenna and orientation, etc.

RE: AVT9152 SAR testing?

ggabe — Tue, 25 Jul 2023 18:29:12 GMT

It might be best to direct your question to AVNET, they should be able to give you details of their decisions and the level of certification they have done.

RE: AVT9152 SAR testing?

gmonroe — Tue, 25 Jul 2023 16:53:37 GMT

We are looking to go to market with this as a solution that we may eventually move away from. Our market is not something that would use the term mass market. Expect lower numbers than what I would use that term for.

RE: AVT9152 SAR testing?

ggabe — Tue, 25 Jul 2023 16:36:45 GMT

What is the scope of "our own testing"? Are you bringing a product to mass market? Or is it perhaps a research only project with internal use and no customer offering?

In my opinion, out of the 3 protocols AVT9152 supports the LTE is pushing the limit in terms of SAR challenges, testing burden and eventually cost.

AVT9152 CAD model?

gmonroe — Wed, 19 Jul 2023 23:09:28 GMT

Is there an Altium model and STEP file available for the AVT9152 module?

RE: AVT9152 CAD model?

bidrohini — Fri, 21 Jul 2023 16:01:52 GMT

Here are the manuals etc. But CAD files are not open-source maybe.

RE: AVT9152 CAD model?

gmonroe — Thu, 20 Jul 2023 14:17:17 GMT

Thanks. That saves me a lot of time.

RE: AVT9152 CAD model?

SHLim — Thu, 20 Jul 2023 02:42:32 GMT

Please find the generic Altium STEP file for AVT9152 module in the attachment here...community.element14.com/.../AVT9152-Module.zip

RE: AVT9152 CAD model?

shabaz — Wed, 19 Jul 2023 23:24:43 GMT

I don't know, but if you don't get (or until you get) a better answer, it looks straightforward, there's a dimensioned drawing and footprint in the "Module Data Sheet" available at the main product page: https://www.avnet.com/wps/portal/us/products/new-product-introductions/npi/avnet-avt9152-module/

AVT9152 stocks and availability?

gmonroe — Wed, 12 Jul 2023 18:39:58 GMT

Is there any information that can be provided to show what "typical" or historical stocks of parts look like? A 16-week lead during prototyping is something that would be insurmountable for us if this part goes out of stock. Also, is there any information on how long this module will be supported?

RE: AVT9152 stocks and availability?

SHLim — Sun, 16 Jul 2023 15:34:56 GMT

You may contact asia-ads-contact@avnet.com for support and copy the Avnet local account manager too. Thanks!

RE: AVT9152 stocks and availability?

gmonroe — Fri, 14 Jul 2023 17:38:09 GMT

Thanks for the reply. Who would I speak to about our future plans without making it public on a forum?

RE: AVT9152 stocks and availability?

SHLim — Fri, 14 Jul 2023 16:21:23 GMT

Yes, we do have stock available to support immediate prototyping needs and possibly pilot production too. It would be good if we have a better understanding of your production demand later.

As for how long this module will be supported in the market, the core devices used in the module, the nRF9160 and nRF52840 are fairly new product from Nordic Semiconductor. Nordic product typically last around a decade at the least. The module will continue to be manufactured as long as these devices are not discontinued.

RE: AVT9152 stocks and availability?

gmonroe — Thu, 13 Jul 2023 14:13:42 GMT

All of the above is exactly why I asked the question.

RE: AVT9152 stocks and availability?

michaelkellett — Thu, 13 Jul 2023 09:20:11 GMT

If the availability of a part like this is important to your business then you need to establish a relationship with the supplier and manufacturer. If you are a small and new operation with no track record this will be very difficult to do.

You can help yourself by checking that the module you are buying uses parts from sources that you can identify and understand.

You should have backup plan - can you use an alternative module or make the modules yourself if necessary.

If you can't sort out all these things then think very long and hard about a different route to production.

Choose chips in widespread use so that there is a good chance of the part remaining in production.

Choose manufacturers with a good reputation for continuity of supply.

Complex boards and modules are the most difficult parts to totally sure of. If just one part in a module is unavailable your supplier must re-design the module and do so in such a way as to satisfy all their customers. If you buy at component level you have a much better chance of getting a substitute part that will work for your application.

Designing for part availability is a real challenge and will often rule out otherwise attractive solutions. Only you can balance up all the risk factors for your business. When I start a new design I often buy enough parts right at the start to get all the way to the first pre-production run.

RE: AVT9152 GPIO connections between the nRF9160 and nRF52840?

SHLim — Thu, 13 Jul 2023 03:17:45 GMT

Hi,

Please find attached here the revised datasheets of AVT9152 module. Please refer to the same section for the information that you are looking for.

Best regards,community.element14.com/.../AVT9152-Module-Datasheet-v1.1-ver2.pdf

AVT9152 GPIO connections between the nRF9160 and nRF52840?

gmonroe — Wed, 12 Jul 2023 18:29:47 GMT

The diagram for the AVT9152 module shows GPIOs connected between the nRF9160 and nRF52840, however, I have not been able to find any documentation showing me which GPIOs are connected together. Where can I find this information?

RE: AVT9152 GPIO connections between the nRF9160 and nRF52840?

shabaz — Wed, 12 Jul 2023 21:04:27 GMT

Hi,

It is in the module datasheet PDF (available from the main product page https://www.avnet.com/wps/portal/us/products/new-product-introductions/npi/avnet-avt9152-module/ ), in the section titled Interconnects between nRF9160 and nRF52840

RE: Difference between the AES-CELLIOT-AVT9152MOD-TR and AES-CELLIOT-AVT9152MOD part numbers?

shabaz — Wed, 12 Jul 2023 20:59:44 GMT

Duplicate:

AES-CELLIOT-AVT9152MOD versus AES-CELLIOT-AVT9152MOD-TR?

Difference between the AES-CELLIOT-AVT9152MOD-TR and AES-CELLIOT-AVT9152MOD part numbers?

gmonroe — Wed, 12 Jul 2023 19:39:19 GMT

What is the difference is between the AES-CELLIOT-AVT9152MOD-TR and AES-CELLIOT-AVT9152MOD part numbers?

RE: Difference between the AES-CELLIOT-AVT9152MOD-TR and AES-CELLIOT-AVT9152MOD part numbers?

c_chil — Wed, 12 Jul 2023 19:42:53 GMT

TR= Tape Reel, Min order is 300 with TR.

AES-CELLIOT-AVT9152MOD versus AES-CELLIOT-AVT9152MOD-TR?

mike.mandeville — Wed, 12 Jul 2023 19:01:02 GMT

What's the difference between the AES-CELLIOT-AVT9152MOD and the AES-CELLIOT-AVT9152MOD-TR? Different pricing and stock showing for each one. Datasheet doesn't seem to call out the -TR.