M.2 EatherJack
An attempt to make a M.2 module with a RF chip on it, for in in WWAN with M.2 B Key slots
This is a project to make "something" to put in the WWAN slot of my laptop. This means M.2 NGFF with key B. Lets try to use USB as a minimum. Maybe som STM32 chip as a start. Maybe it can be connected to other things. This in turn means a maximum component area of 30mm x 42mm. Meaning TYPE 3042-xx-B. But I gues we could also go with TYPE 2242-xx-B-M, but this is smaller, but should fit a normal WWAN socket location as well.
Or A + E? Can we do A + B + E?
Even though there are USB in all of above the USB data lines are NOT in the same pin location :( ... meaning that we go with the B key for now as this seems to be the most common keying for WWAN modules for laptops.
Mechanical constraints:
- Type 3042-S3-B interface
- 30x42mm
- Component maximum height on top layer is 1.5mm
- B keying
- Board thickness is 0.8 mm.
- No components on bottom side
- --- or should it be 2242-S3-B? 22mm instead of 30mm wide?
Refer to Table 30 for pinout Socket 2 Key B SSIC-based WWAN Adapter Pinouts
SIM card connections could be used for SWD programming Make PCB ready for both STM32F407 and STM32F103
M.2 EatherJack
*PCBWay community is a shared platform and we are not responsible for any design issues.
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- RF HWman Jun 16,2020
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