Path: utzoo!attcan!uunet!husc6!rutgers!ucsd!sdcc6!mplvax!david
From: david@mplvax.nosc.MIL (David Almagor)
Newsgroups: sci.electronics
Subject: Re: FFT processor
Summary: DSP maker recommendation
Message-ID: <773@mplvax.nosc.MIL>
Date: 11 Sep 88 05:32:56 GMT
References: <195@esat2.kulesat.uucp>
Organization: U.C. San Diego, Marine Physical Laboratory
Lines: 47

In article <195@esat2.kulesat.uucp>, eyckmans@esat2.kulesat.uucp writes:
> 
> 	Hello,
> 
> 	I am looking for a kind of FFT processor. Everybody I ask, tells me
> that there exists a chip with the FFT algorithm build in in hardware, but 
> nobody knows which company sells them or where to get info. My last hope is
> the net.
> 	I am working on a data-acquisition system build around an 8 bit micro-
> controller. On the collected data, an FFT should be executed but the microcon-
> troller is not fast enough to do this. So what I want is a chip to which I pass
> all of the data and it should give me back the frequency contents of the sampled
> signal.
> 	I hope somebody out there knows a company or part number or magazine
> where I can get information.
> 		Thanks
> P.S.:Hope I didn't make too much mistakes against the english language.



OK, I goofed the first time - I didn't include the original article,
hope this one's better:

There are a bunch of companies nowadays which have general purpose
DSP processors to do this job, and canned routines that you can use, 
and this probably is your cheapest solution. A few of them are:

TI: TMS32010 - the basic one, will do this job probably.
Analog Devices: ADSP2100
Motorola: 56000
AT&T: DSP32

Another way to go is the one you are considering. I think it is more
expensive, but one would have to look at the required speeds and 
dynamic ranges required. One company that comes to mind is :
Zoran Inc. out of somewhere in silicone vally - they make FFT chips.


Hope this helps, David.



-- 
David Almagor          | Phone 619-534-1813           | 
The Marine Physical lab| or:   619-442-3451 ext. 3173 | 
UCSD, San Diego,       |                              |david@mplvax.nosc.mil 
Ca 92152               |                              |