Saturday, December 21, 2013

a look inside the shielding can of the BLE112 Bluetooth Low Energy module

Given that I accidentally damaged this Bluetooth Low Energy anyway, I thought it interesting to take a look what is inside the shielding can with a macro lens.

Here you see the bluegiga BLE112 module on a board with the shield still in place:



And here I removed the metal shielding can:


As you can see no real surprises here:

The central unit is a Texas Instruments CC2540 SoC Bluetooth Low Energy module.
On the lower right of it sits a 32 Mhz crystal for the main clock.
Above it is what I assume the 32.768 kHz low speed clock crystal.

The antenna was already visible with the can in place, but what's interesting is the second companion chip inside the can. I assume it is some kind of filter for the antenna.

Besides that just a few passives and that is it!
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