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Forum Discussion
Please ID these chips in my WNDR4000 router
There are 5 chips, E,C,and B say: Foxconn W401 94V-0 1109 A19 A20 A81 Chips A and D say: Foxconn W401 94V-0 1109 A18 A21 I would like to know which chips are for 2.4 Ghz an...
> There are 5 chips, E,C,and B say: [...]
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> 94V-0
What are you reading? Silk-screened labels on the PCB, or markings
on some part, or what?
https://en.wikipedia.org/wiki/UL_94
> I am guessing [...]
You certainly seem to be.
I am reading each line of white printed text that is directly on the black I C chips
The chips are made by foxconn and I cannot find any information about the chips on their website
I need to know what frequencies each one of these chips can transmit and receive on
A18, A19, A20, A21, A81 are the bands / frequencies that are printed
The other numbers and letters means other things, like the 94-0
As you have linked the wiki article about
The 1109 must mean something
But the information I need is the bands of each chip
They used 2 different chips
So 3 of 1 chip are used and then 2 of the other chip are used
Thanks
The chips are made by foxconn and I cannot find any information about the chips on their website
I need to know what frequencies each one of these chips can transmit and receive on
A18, A19, A20, A21, A81 are the bands / frequencies that are printed
The other numbers and letters means other things, like the 94-0
As you have linked the wiki article about
The 1109 must mean something
But the information I need is the bands of each chip
They used 2 different chips
So 3 of 1 chip are used and then 2 of the other chip are used
Thanks
> The 1109 must mean something
Looks to me like a date code, YYWW: Year [20]11, week 9.
> I can't (yet) see your picture. [...]
All still true.
Those are the internal antennas for the wifi.
- I know these are the internal antenna chips I need to know what frequency ranges each chip has
The a19 a20 a21 a81
Those correspond to specific frequency ranges specific bands and I need to know what bands what frequencies each chip can do
The one set of chips that doesn't have the a81 does one band and the others do another band and since it's 2.4 GHz and 5.8 GHz one set of chips can do the 5.8 GHz and the others do the 2.4 gigahertz but I need to know which chips are which