Recently I have been trying to learn about Bluetooth technology. I
visited "www.howstuffworks.com" and read their article on it. It gives
general information about the technology.
Now I want to know how a Bluetooth CHIP works.
Besides the fact that a chip can be about the length of a
matchstick (google images), I know nothing about the chips, and can't
seem to find any articles, pictures, etc. explaining them.
What are a Bluetooth chip's major components, and what are the basic
functions of each component? Ideally, I would like some kind of
accompanying cross-section/diagram showing a chip and its parts to
help me understand. |
Request for Question Clarification by
pafalafa-ga
on
08 Jun 2005 20:06 PDT
Here are two links that contain schematic overviews of two different
Bluetooth chips from Broadcom:
http://www.broadcom.com/collateral/pb/2042-PB01-R.pdf
http://www.endemolent.co.uk/collateral/pb/2035-PB03-R.pdf
The images shown really ARE schematic -- there's no picture here of
the actual chip -- but between the text and the images, there's a
pretty good overview of what's on the chips, and what they do.
Is this the sort of thing you need?
pafalafa-ga
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Clarification of Question by
verdad-ga
on
09 Jun 2005 03:36 PDT
What you have given me is great. This is definitely the sort of thing
I wanted. The only thing that would make it perfect is if I had a
photograph of one or both of the actual BCM chips. Being able to see
what all the parts actually look like would complete the picture I
think. Thanks for your help.
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Request for Question Clarification by
pafalafa-ga
on
09 Jun 2005 04:55 PDT
verdad-ga,
Thanks for the feedback.
It's turned out to be a surprising challenge to put together an actual
picture of a chip with a break-out of its key components.
Take a look at this one and let me know if it's getting closer:
http://www.azzurri.com/support/public/zv3001_hci_bstamp.pdf
paf
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Request for Question Clarification by
pafalafa-ga
on
09 Jun 2005 05:02 PDT
...and another one:
http://www.xemics.com/docs/xe1400/xe1431_oemacl_1_prodbrief.pdf
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Clarification of Question by
verdad-ga
on
09 Jun 2005 18:16 PDT
"It's turned out to be a surprising challenge to put together an
actual picture of a chip with a break-out of its key
components"...yeah that's what I was thinking after a half hour of
searching and no results. That?s when I decided to give Google Answers
(which I have never used before, but will now probably use again) a
try.
The azzuri link wasn't much good. However, the xemics pdf file was the
best you've given me so far. It does have a real photograph, and it
explains all the pins around the chip. I was going to ask you to try
to look up all the main parts on the chip, but I figured I could do a
lot of it myself. I studied the picture and made out ?XEMICS SA
XE1431,? ?SKYWORKS CX72303-61,? ?SAIFUN SA25F010,? ?D134,? and ?A38C.?
I ran Google searches on all of them and got some information on the
Xemics, Skyworks, and Saifun components:
http://www.xemics.com/docs/xe1400/xe1431_prodbrief.pdf - in depth of the Xemics
www.skyworksinc.com/products_display_item.asp?did=2560 ? identifies
component as an RF transceiver
http://www.saifun.com/ - identifies component as a semiconductor
So now I am almost perfectly satisfied. If you could find out what
those other two things are (?D134,? and ?A38C?), I don?t think I could
ask for more. If you do, you might want to look at that Xemics picture
again. Even if you can?t find anything though, I think I can make due
with what I have. Again, thank you for your help.
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Request for Question Clarification by
pafalafa-ga
on
09 Jun 2005 19:17 PDT
This is like hunting for the snark!
No luck on the two unidentified components.
But I did find something that may be a big help -- especially if
you're better at schematics than I am.
This document:
http://www.xemics.com/docs/xe1400/xe1431_datasheet.pdf
is an 81-page monster of a datasheet on the same chip. Once again, no
photo of the chip itself, but lots of block diagrams, etc. By a
process of elimination, you may be able to get at what's what on the
chip.
For instance, have a look at Figure 39 on page 76. From what I can
gather, the component labelled AS213 is the RF-transceiver
input/output device, and sure enough, a search on "as213" leads right
to Skyworks:
http://www.skyworksinc.com/products_detailpop2.asp?pid=4183
I wish I could do more on this so I could post a complete answer on
this, but I've really hit the end of my technical knowledge (or should
I say ignorance) about matters microelectronic. I've put this here as
a Clarification so you won't be charged.
But I do hope we will see you back at Google Answers one day soon.
All the best,
pafalafa-ga
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