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The following companies produce chip-sets for 802.11a/b/g:
Intersil, Atmel, TI, Agere, Broadcom, Marvell, AMD, RFMD, Atheros Communications, Infineon, Envara
All of the provide some sort of development kit that can get you started quickly, but most of them won't bother talking to you unless it...
Re: bus noise
Assuming your uC drives the flat-cable directly, it may pick-up RFI. The solution to this will be to insert some filtering (RF blocking beads for example) between the uC and the cable. You can also insert digital drivers, these will probably solve the problem as well.
It is also...
Hi,
Reaching 300 to 400 meters particularly with no line of sight will almost surely force you to transmit more power than is allowed without license, to get a reasonable data rate.
If you can accept a low data rate then you may try something like TR1000 from RFM or TRF6901 from TI.
spanish uhf tv transmitter
Hi,
A typical model used to calculate propagation distances is Okumura-Hata.
See the following link (or google for more references):
**broken link removed**
50Km is a distance that would typically require a transmitter in the KW range. The exact number dependes on...
Another approach is to use FET switches. For example, if your chip uses 5V and 3.3V, and wants the 5V first, then you put a FET on the 3.3V wire, and you use a comparator (or power-good signal, or some other means) to determine that your 5V is O.K., and only then you turn ON your FET.
The...
You can try one of these of the tools in these links:
http://www.dependencywalker.com/
or
http://www.pe-explorer.com/
But as I said, these don't work for all DLLs, because they only extract information available in the DLL header
The simplest converter is a differential common emitter pair.
The transistots are connected together at the emitter and biased through a current source from emitters to ground. The diferrential input is at the bases, and the output is at the collector of one of the transistors.
One tool I can think of is tdump.exe from Borland, but I don't thing you get the full function details from it. Anyway, you can download at **broken link removed**
There are other tools that extract the full information, but will only work with VB DLLs, or other specialized DLLs.
In order to...
The key difference between a general purpose micro-controller and a DSP is that the DSP has specialized HW for performing numerical calculations. Such HW might be dedicated multipliers, multiple adders, division unit, butterfly unit (to speed FFT processing), etc.
Have a look at...
I don't think what you want is possible. From a pure DLL you can get only the function names. If you want more you need to get a lib file, or the documentation of the DLL.
Of course you can load into a debugger and manually try to see what is going on...
If by "single bit quantized" you mean a sigma-delta type A2D (or D2A for that matter), then the SNR you get depends on the over-sampling ratio (i.e. the ratio between your sampling frequency and Nyquist frequency). I'm not aware of any 2dB mandatory penalty.
As an example, I can think of the following:
With two quantization levels, I assume that the signal DC level is 0, and that the binary quantized numbers are
00 = signal positive, level OK
01 = signal positive, level too high
11 = signal negative, level OK
10 = signal negative, level too high
So...
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