What is the difference between DW3120 and QM33120W?

KOv01 · May 16, 2022, 10:22am

Hi qorvo team,

Thx
KK

Wassim_Qorvo · May 17, 2022, 6:20am

The main difference between QM33120W and DW3120 is that QM33120 supports the Japanese pulse shape ( ARIB STD-T91 Overview of ARIB Standards (STD-T91)｜Association of Radio Industries and Businesses)

Note also that the QM33120 is a new silicon, so registers may be added/updated compared to the DW3120.

Hope it helps,
Wassim

KOv01 · May 17, 2022, 6:43am

Hi Wassim，

I’m currently using DW3000_API_C0_rev4p0 because I can see the code directly.

Not used to DW3XXX_API_rev9p3 just calling API (personal habit).

Can I still develop Murata Type2AB(NRF52840 +QM33120W) with rev4p0？

Where can I download QM33120W information？

Thanks
KK

Wassim_Qorvo · May 17, 2022, 6:59am

Hi @KOv01

Here you’ll find the release XR6C which supports Murata Type2AB.

https://www.decawave.com/wp-content/uploads/2022/03/DW3xxx_XR6.0C_24Feb2022.zip

KOv01 · May 17, 2022, 7:26am

Hi Wassim，

I already have DW3xxx_XR6.0C.

There is no Datasheet or User Manual about QM33120W in XR6.0C.

I don’t know what products QM33120W will apply to. Is it for Type2AB only？

Thanks again.
KK

Wassim_Qorvo · May 18, 2022, 1:49pm

Hi @KOv01 ,

you’re right, datasheet and User Manual will come soon.
It has too much in common compared to DW3120, as I said the big difference is that the chip meets the Japanese regulation.
For the moment, as you can see in the Release package XR6.0C, the source code is only available on nRF52840DK and STM32f429 Nucleo.

Thanks,
Wassim