mobile | classic
Dataweek Electronics & Communications Technology Magazine

Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2019


Soft multipliers increase DSP performance five-fold
25 September 2002, News

Altera has announced an innovative technique for increasing the DSP capability of its FPGAs by building fast, flexible multipliers out of on-chip memory. Using a patented technique for creating 'soft' multipliers from Stratix TriMatrix memory structures, the number of high-performance multipliers in a Stratix FPGA can be increased up to 500% it claims.

Soft multipliers are ideal for multichannel applications as well as multiplier- intensive functions common in communications applications such as echo cancellers, equalisers, multi-user detection, and beam forming. "Soft multiplier technology made Stratix FPGAs the best fit for our fixed broadband wireless application," said John Federkins, director of engineering at CoWave Networks. "... we determined that our fast-fourier transform would benefit most from the greater amount of on-board memory and soft multiplier flexibility available with Stratix FPGAs."

Soft multipliers are equal in performance to the existing embedded or 'hard' multipliers provided by on-chip Stratix DSP blocks says Altera. DSP designers can use soft multipliers to augment hard multipliers. The largest Stratix FPGA, the EP1S120, offers 112 18x18 multipliers capable of running at 300 MHz via the DSP blocks. Using soft multipliers increases this quantity to 612, three times the maximum number offered by other FPGA vendors claims the company. In addition, soft multipliers can efficiently implement multiplier sizes that are resource-inefficient in hard multipliers, such as asymmetric multipliers or multipliers that are not easily scaled up from the hard multiplier configuration.

"In addition to fast, true-dual port memory access, Stratix TriMatrix memory blocks now deliver unprecedented multiplier performance, flexibility, and efficiency," noted Justin Cowling, director of Altera's IP marketing. "Soft multipliers provide DSP designers with options and performance levels that are not available with any other DSP device offering, significantly increasing the value of Altera's reconfigurable DSP solution."

For more detailed information on how to use soft multipliers in Stratix FPGAs, readers can download Application Note 246: 'Using soft multipliers with Stratix devices' at =001_1.

Supplied By: EBV Electrolink
Tel: +27 11 236 1900
Fax: +27 11 236 1913
  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Electronics news digest
    26 June 2019, News
    South Africa • South Africa is looking to take on a leading role in the international space weather monitoring community. Space weather events are capable of seriously disrupting modern technologies ...
  • Clearing the static: ESD testing and monitoring – Part 2
    26 June 2019, Altico Static Control Products, News
    Once you’ve identified an ESD protected area (EPA) and the combination of ESD (electrostatic discharge) control products your facility requires, continuous testing and monitoring need to be conducted. ...
  • AI on a chip
    26 June 2019, News
    Researchers have created a machine learning library programmed in C that can run on microcontrollers, and on other platforms such as PCs, Raspberry PI and Android.
  • From the editor’s desk: Local developments using solar power
    26 June 2019, Technews Publishing, News
    It’s always great to see local developers doing good work, and Dataweek always enjoys getting a chance to feature them. Sadly, people seldom share with us the interesting things they’re working on, whether ...
  • CSIR pushes to localise technologies
    26 June 2019, News
    The Council for Scientific and Industrial Research (CSIR) has pledged to work closely with the private sector and innovation partners in developing and localising technologies to support the advancement ...
  • Mixed-signal MCUs for digital power
    26 June 2019, EBV Electrolink, DSP, Micros & Memory
    Targeted at advanced digital power applications and consumer and industrial appliances, the new STM32G4 microcontrollers (MCUs) introduce two new hardware mathematical accelerators to boost processing ...
  • SIMCom product seminar to be held next week
    26 June 2019, Otto Wireless, News
    Otto Wireless Solutions, in conjunction with SIMCom, will be hosting an informative half-day seminar at Riversands, Fourways on 10 July 2019. In addition to a brief product presentation by Otto Wireless ...
  • Automotive switching regulator
    26 June 2019, EBV Electrolink, Power Electronics / Power Management
    The STMicroelectronics A7987 automotive switching regulator has a wide input voltage range that allows use in trucks and buses, and an adjustable output voltage that ensures flexibility and stable performance ...
  • Demand for local products highlighted at LME expo
    26 June 2019, News
    The Local Southern African Manufacturing Expo (LME), held in Johannesburg in late May, managed to draw a respectable 3473 visitors in its first ever outing. “The Expo was the culmination of a vision that ...
  • Electronics news digest
    29 May 2019, News
    South Africa • South Africa will soon join the World Economic Forum’s (WEF) Centre for the Fourth Industrial Revolution Network (C4IR Network) alongside China, India and Japan by launching an affiliate ...
  • Clearing the static: ESD testing and monitoring - Part 1
    29 May 2019, Altico Static Control Products, News
    Static energy is an unseen threat, and the only way of knowing how to control it is by testing. Depending on your industry and application, there will be specific resistivity requirements that will govern ...
  • From the editor’s desk: US-China trade war hits chip makers
    29 May 2019, Technews Publishing, News
    The escalating trade war between the US and China has the global economy on high alert, and unless things normalise soon it is going to have massive ramifications on many industries. Following US president ...

Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronics Buyers’ Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Terms & conditions of use, including privacy policy
PAIA Manual


    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.