Audio-Mojo Development Board Speeds Precision Digital Filtering Implementation for Audio Applications

Quickfilter Technologies announces new Audio-Mojo development board which speeds precision Digital Filtering implementation for audio applications.

The latest development tool from Quickfilter Technologies, Inc. simplifies the task of adding precision digital filtering to audio applications, such as equalizers and crossovers used for sound shaping in speakers, headphones and headsets.

Designated the Audio-Mojo, the development tool enables quick and easy implementation of precision digital filtering using an embedded single-channel precision digital filter chip, QF1D512 Simple and Versatile FIR engine (SavFIRe™). The Audio-Mojo also features an embedded audio codec which allows verification of audio performance using analog inputs and outputs.

The Audio-Mojo is the latest addition to the Quickfilter “Mojo” family of development tools. The first development tool, the MSP-Mojo, simplified development of systems based on the QF1D512 and the Texas Instruments MSP430 microcontroller.

"The Audio-Mojo is our first application-specific Mojo board," said Steve Brightman, Quickfilter’s Director of Marketing. "Not only does it simplify the development of audio filtering, it also functions as a reference design for low-cost, high-performance audio applications."

The Audio-Mojo can be plugged onto the QF1D512-DK Development Kit to allow viewing of filter performance as well as to edit or create new filter responses. Once the filters are designed to the user’s satisfaction, they can be downloaded into non-volatile memory on the Audio-Mojo board which can subsequently be used in a standalone mode in the user’s application.

When used in a standalone mode, the Audio-Mojo requires just a 5V external power supply. The user provides an analog input source(s). The filtered responses can then be monitored at the analog outputs. The same hardware can be used to split a single input into two frequency-separated channels, e.g. an audio crossover, or as a two-channel equalizer. Two sets of example filters are stored in non-volatile memory on the Audio-Mojo to illustrate both modes of operation.

Support documentation, including application notes and Users Guides, can be found on the Quickfilter website at http://www.quickfiltertech.com/files/Audio-Mojo. The Quickfilter Audio-Mojo, manufactured on behalf of Quickfilter Technologies by DLP Design, will be available at the end of April through Mouser Electronics and Digi-Key for $59.95 (P/N: QF-AUDIO-MOJO) and from Quickfilter authorized distributors worldwide.

About Quickfilter Technologies
From Concept to Product in Minutes, not Days
Quickfilter Technologies, Inc utilizes patent pending techniques for implementing programmable ICs that allow an engineer to design a custom circuit for signal processing without the cost and complexity of programming a DSP. Using the Quickfilter solutions, it is possible to create and begin operating custom filtering solutions in less than five minutes. Quickfilter’s products are ideally suited for sensors in industrial monitoring and control, medical equipment, homeland security, and engine control applications.

The Quickfilter solutions comprise chips featuring a hardware-based, programmable, precision Finite Impulse Response digital filter engine and, in the case of the Programmable Signal Converter, an analog front end and analog-to-digital converter. A companion hardware development tool and Quickfilter Pro software allows the user to quickly configure the chips for his specific application. This enables customers to rapidly complete a design at significantly lower cost while achieving higher performance. In addition, since the chips are readily reprogrammable, they can be reconfigured in circuit during design, at the time of shipment or in the field. To find out more about Quickfilter Technologies visit their website at: http://www.quickfiltertech.com.

Quickfilter Technologies Inc. is a private equity funded fabless semiconductor company founded in 2003 by Bob Silco and located in Allen, Texas. The company is developing a family of programmable mixed-signal integrated circuits that convert noisy analog signals into clean, usable digital signals.


About DLP Design
DLP Design manufactures a variety of boards to simplify the designer’s task. The MSP-Mojo is the latest of a number of projects DLP has undertaken for both Texas Instruments and Quickfilter Technologies.