AUSTIN, Tex.--During an Austin music festival today, Cirrus Logic Inc.'s Crystal subsidiary rolled out two new audio ICs, which the company says are the first single-chip "digital reverb solutions."
Cirrus Logic said the ICs reproduce the sound of a mechanical-spring reverb, which is used in many instrument amplifiers. Targeted applications include amplifiers for electric guitars, pianos, microphones, public address systems, recording studio mixers, and karaoke equipment.
"When we demonstrated our single-chip reverb solution to manufacturers of pro audio equipment, they told us it rocked," quipped Skip Taylor, vice president of marketing for Crystal Professional Audio products. "I expect that by the end of this year, musicians will be able to buy affordable amplifier systems that use the Crystal reverb chip."
In addition to producing the right sound, the chip integration can help reduce development cycles for musical amplifiers, Taylor said. "Designing an amplifier can take from 6 to 9 months, with 20-30% of that time devoted to optimizing the tricky mechanical spring reverb," he said. "Our Crystal reverb chip removes this design bottleneck and thus cuts 4-6 weeks from the total amplifier design cycle."
The Cirrus Logic subsidiary said the new system-on-chip designs integrate functions that typically require three or more stand-alone components: random-access memory, high-performance 24-bit digital signal processor (DSP), and 24-bit analog-to-digital (A-to-D) and digital-to-analog (D-to-A) converters.
Two versions of the reverb ICs are being offered by Cirrus Logic. A fixed-function device, designated CS4811, has selectable reverb levels, and a variable-function CS4812 featuring adjustable effects. Samples of both chips--housed in 100-pin quad flat package--will be available in the second quarter of 2000 with volume shipments starting in the third quarter.
The 5-volt chips cost $12 each in quantities of 1,000 and $10 in lots of 10,000.