Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!ucsd!dog.ee.lbl.gov!nosc!marlin!herman
From: herman@marlin.NOSC.MIL (John W. Herman)
Newsgroups: sci.electronics
Subject: Re: Fast FFT Chip
Keywords: DSP FFT
Message-ID: <1647@marlin.NOSC.MIL>
Date: 29 Oct 90 21:38:11 GMT
Expires: 15 Nov 90 08:00:00 GMT
References: <1645@marlin.NOSC.MIL> <7070004@hpnmdla.HP.COM>
Reply-To: herman@marlin.nosc.mil.UUCP (John W. Herman)
Followup-To: comp.dsp, sci.electronics
Distribution: usa
Organization: Naval Ocean Systems Center, San Diego
Lines: 38


--
The following is the message I sent.
--
I saw an ad for a chip or chip set that professed to be able to
perform a fixed point or block floating point FFT in 96 microsecond
but now I can't find it.  If you know the name of the company that
makes this chip or chipset, I would appreciate your sending it to
me.  Thank you.
-- 
The information I received is as follows:

---
From marlin!nosc!dog.ee.lbl.gov!hellgate.utah.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!van-bc!rsoft!mindlink!a143 Mon Oct 29 13:11:59 PST 1990

John, for fast FFTs, it's hard to beat Array Micro's unit (if memory serves,
it's called a DASP6100).  I think the set will allow you to do a real 64K FFT
in aroun 1 to 2 milli-seconds.  If memory serves, a real 256 FFT can be
calculated in _realtime_ for a 0 to 20 kHz spectrum.  I don't have Array
Micro's number off hand but they are in the US.  Maybe someone else has their
number.  Or, failing that, I could find it out in a day-or-three.
---
From marlin!nosc!ucsd!ucbvax!hplabs!hpl-opus!hpnmdla!sheppard Mon Oct 29 13:24:17 PST 1990

I believe that was announced by Plessey recently. Try:

Plessey Semiconductors Scotts Valley, Ca, (408) 438-2900

Roger- 

--
Thank you both very much.  The ad I saw was for the Plessey PDSP16510 which
will perform a block scaled fixed point FFT in 96 microseconds.
-- 
John Herman    ARPA:  herman@marlin.nosc.mil  Phome: (619)553-1466
Naval Ocean System Center Code 712
271 Catalina Blvd
San Diego, Ca. 92512-5000