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APPLE AIRTAG 2 REVERSE ENGINEERING
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Tear down time. This is the Apple Air
Tag 2. Let's uh take it out of the box,
disassemble it to the silicon level, and
see what it's made out of. So, the Air
Tag looks very similar to its previous
generation. Three major changes, I
understand. A louder speaker, a change
to the ultra wideband uh chip for better
performance, and a Bluetooth low energy
chip, I think, has been updated as well.
All right, let's start the tear down. Uh
the silver bit in the middle here is a
permanent magnet and then it's
surrounded by this uh wire copper. Uh
that's the voice coil for the speaker.
On the outer link, I believe this is the
ultra wide band antenna coming around
here. Uh what else can we see? We can
see what looks like a couple of test
points. Uh this is probably something
you can probe here. And then this collar
proides some sort of mechanical
fixturing probably for the
manufacturing.
That's about all we can see here. Uh
let's pry off this bit of plastic. It's
been glued on with a transfer adhesive
tape. Okay. Uh two big semiconductors uh
of great importance. Uh this one here is
the Nordic semiconductor 52 uh 840. Uh
this is a Bluetooth chip plus an
associated Cortex M4 processor. Uh this
is the brains of the operation uh that
provides the Bluetooth communication uh
plus all the software on this side here.
This is the ultra wideband chip. I think
it's the ultra wideband 2. It's not just
a chip. It's actually a full assembly.
There's substrate there and a lot of uh
circuitry below it. Um this one here
provides the precise pre uh positioning
and then the Bluetooth provides uh the
sort of sensing at a distance. With the
ultra wideband, you can actually get it.
So, you can just sort of point your
phone and uh it will tell you where it
is quite close. What else can we see? Uh
there's going to be a power spice
section up here giving all the
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