FREMONT, Calif.--Cirrus Logic Inc. here today said it has merged a number of audio technologies together to create a three-chip solution for home theater systems. The audio-processor chip set replaces up to eight devices in home theater systems, said the company.
"With this new chip set we are focusing on digital audio/video receivers, which along with DVD players is the fastest growing segment of the home theater market," said Terry Ritchie, vice president of consumer marketing for Cirrus Logic's Crystal Consumer Audio Products Division.
The chip set is based on a new multi-standard Crystal digital signal processor, the CS49326, which is fabricated in 0.25-micron CMOS. Cirrus Logic said the new DSP has enough memory to store code for Dolby Digital AC-3 and Digital Theater Sound (DTS). The internal storage eliminates the need for external memory in entertainment systems, said Cirrus Logic.
In addition, the chip set is RAM-based, making it possible to reprogram and download new code for emerging audio standards, such as MP3 or surround-around sound. Cirrus said the Crystal audio chip set is also more powerful that previous offerings because a MIPS processor core has been added to the solution. The company said the new DSP is 40% faster than its predecessor.
The home theater chip set employs: the 24-bit DSP (CS49326); a 96-kHz, 103 dB audio codec (Cs4228); and a S/PDIF receiver (CS8415A). According to Cirrus Logic, the CS8415A is the industry's first digital 96-kHz S/PDIF receiver to integrate a 7-to-1 input multiplexer, which reduces the amount of external circuitry by 30%.
The first available member of the chip set is the CS49326 multi-standard DSP. Volume production has begun, and the home theater audio processor is priced at $16.50 each in quantities of 10,000. The 24-bit, 96-kHz audio codec is now in production and sells for $8.60 each in similar quantities. The new S/PDIF receiver is being made available in sample quantities with volume production slated to start later in the first quarter. It will cost $3 each in quantities of 10,000.