Analog Devices Integrates High-Performance Converters For Multichannel Audio Applications

22-Sep-00

Analog Devices, Inc. (NYSE: ADI) disclosed details about two, new, integrated multi-channel audio devices. The AD1836 multi-channel coder/decoder (codec) chip, featuring six digital-to-analog converters (DACs) and four analog-to-digital converters (ADCs), supports multiple, digital, stereo channels with 24-bit conversion resolution and a 96kHz sample rate. The AD1833 digital-to-analog converter (DAC) device offers six DACs, with 192kHz sample rate and 24-bit resolution for two channels, and 96kHz sample rate for all six channels. This chip is fully compliant with the DVD-Audio specifications. ""Audio system designers, like other engineers in the electronics industry, relentlessly pursue more favorable performance per dollar. And thatís what theyíre getting with these new devices. Based on our patented Sigma-Delta modulation architecture, these converters support theatre-quality performance in single, small, low-cost packages,"" explained Ken Nevard, Product Manager, Audio Digital Group, Analog Devices. ""This, in turn, enables designers to build high-quality, high-performance audio systems that take up less space, use less energy, and cost less to build. The AD1836 will be used in home theatre equipment, automotive audio systems and digital audio-effects processors. The AD1833 will be used in all these products plus the latest DVD players."" The AD1836 features a 108dB dynamic range for each of its six DACs, and a 104 dB dynamic range for its four ADCs. The AD1833 also features a 108 dB dynamic range for each of its DACs. The multi-bit Sigma-Delta architecture is said to reduce idle tones, and the patented data-directed scrambling is claimed to minimize sensitivity to jitter. The AD1836 codec is sampling now. The 52-pin MQFP package will be available in volume in October and is priced at $9.50 in 1000-piece quantities. It requires a single +5 volt supply, but it also has a separate supply pin for its digital interface, allowing it to be used with +3.3 volt devices. The AD1833 is also sampling now, and the 48-pin LQFP packaged devices will be available in quantity in October. These chips will cost $6.80 in 1000-piece quantities. It, too, requires a single +5 volt supply, and also has a separate supply pin for its digital interface, allowing it to be used with +3.3 volt devices.For more information, visit www.analogdevices.com.

Read More:
http://www.analogdevices.com