A highly commanding DSP chip

UK - The Wavefront AL3101 DSP-1K is a powerful audio processor optimized for signal filtering, equalization and dynamics processing. With its 49 MIPS throughput (at 48kHz), 28-bit internal data path, and on-board data and program memory (1K each), the AL3101 offers higher performance than many of the more expensive DSP chips on the market, according to Profusion. The AL3101 is capable of processing a 1024 tap FIR (Finite Impulse Response) filter; acting as a compressor/limiter, gate, or de-esser; serving as a speaker crossover or equalizer; or creating a wide variety of audio effects such as chorusing and flanging.

The DSP-1K offers large word size, providing easy, accurate algorithm creation for audio and other high dynamic range applications. The chip also operates stand-alone with a serial PROM (DSP-1KM) or in conjunction with a host microprocessor or microcontroller. Additional features include an internal PLL (eliminating the need for high-frequency external clocks), a built-in peak metering function, and serial (DSP-1KS) or parallel (DSP-1KM) processor interface. Multiple channels are easily accommodated with four stereo input and output ports, allowing the AL3101 to interface with up to four stereo ADCs and four stereo DACs.

The device is supplied in a 28-pin (DSP-1KM) or 16-pin (DSP-1KS) SOIC packages. Wavefront Semiconductor products and data sheets are available on-line from the web address below.

(Lee Baldock)

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