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Using the Quickfilter chips with the Propeller chip — Parallax Forums

Using the Quickfilter chips with the Propeller chip

Bob Lawrence (VE1RLL)Bob Lawrence (VE1RLL) Posts: 1,720
edited 2008-02-18 01:32 in Propeller 1
Has anyone has used any of the Quickfilter chips with the Propeller chip?

http://quickfiltertech.com/index.php

Example Applications

http://quickfiltertech.com/html/qfilter_page.php?content_id=70

Just wondering! jumpin.gif

Comments

  • deSilvadeSilva Posts: 2,967
    edited 2008-02-18 00:43
    As you ask: No!
    They look interesting, specialized FPGAs which will match well with the Propeller to form a kind of DSP smile.gif
    But I could not find out what they cost - either the development system needed for them..
  • HarleyHarley Posts: 997
    edited 2008-02-18 01:23
    I viewed their demo and checked with DigiKey on pricing. The QF4A512 is about $20 and dev kit $199

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    Harley Shanko
  • Bob Lawrence (VE1RLL)Bob Lawrence (VE1RLL) Posts: 1,720
    edited 2008-02-18 01:32
    deSilva,

    Thanks! for having a look.

    They have two different chips and development kits. They can be interfaced with SPI.


    Chip 1:The QF4A512 Programmable Signal Converter (PSC) is a 4-channel, signal conditioner, signal converter and precision FIR digital filter. Each channel can be individually programmed for the gain, anti-aliasing filter cut off frequency, A-to-D sampling frequency, and filter characteristics.

    Chip 2. QF1D512 - SavFIRe™ - Simple and versatile FIR engine * 512-tap Precision FIR Filter

    A few pricing examples from Mouser Electronics. Also available from Digikey http://www.digi-key.com

    QF4A512-DK - DEVELOPMENT KIT - 1: $199.00

    QF1D512-QN-T

    Digital Filters SINGLE CHANNEL DIGITAL FILTER
    1: $7.73
    25: $5.25
    100: $3.99

    Complete list:
    www.mouser.com/Search/Refine.aspx?Ntt=865-qf4a512
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