Burr-Brown's Six-Channel Audio DAC Offers 24-Bit Resolution And 192kHz Sampling For DVD Applications

25-Apr-00

Burr-Brown Corp. announced the PCM1604, a six-channel audio DAC (digital-to-analog converter) featuring 24-bit resolution and 192kHz sampling rate for use in a wide variety of multi-channel audio applications such as DVD (Digital Versatile Disc). The PCM1604 contains six 24-bit, 192kHz DACs combined together on a single monolithic integrated circuit. The device is optimized for DVD players, AV receivers, HDTV receivers, car audio systems, multi-channel home theater systems, surround-sound processors, and digital mixing consoles. ""The exceptional price/performance of the PCM1604 is ideal for next generation multi-channel systems which utilize the emerging 192kHz DVD audio standard,"" said Mike Centorino, audio product marketing manager at Burr-Brown. Technical SpecsThe PCM1604 utilizes Burr-Brown's proprietary ""Enhanced Multi-Level Delta-Sigma"" modulator technology which improves audio dynamic performance and reduces jitter sensitivity in actual applications. This device features 105dB dynamic range and -95dB THD+N on each of its six channels. The internal digital filter operates at 8x oversampling (96kHz sampling rate) or 4x oversampling (192kHz sampling rate), with two selectable roll-off performances: sharp roll-off or slow roll-off. The digital filter offers -82dB stopband attenuation and +/-0.002dB passband ripple. Functions of the PCM1604 include digital attenuation, mute, and zero flag for each channel. The device accepts industry-standard audio data formats (16/18/20/24-bit audio data) and can be used with 128, 192, 256, 384, 512, or 768fs system clocks. The PCM1604 processes up to 24 bits internally and has single-ended analog outputs, thus reducing the amount of external components needed. It operates on dual +3.3V and +5V power supplies. The PCM1604 is priced from $6.95 in 1,000 piece quantities and is packaged in an LQFP-48. Delivery is from stock. About Burr-BrownBurr-Brown Corporation is in the development, manufacturing and marketing of precision linear, data conversion and mixed signal integrated circuits. These products address applications for both analog and digital signal processing relating to communications, industrial and process control, test and measurement, medical instrumentation, digital audio, multimedia, and personal computer systems. Additional company and product information is available at http://www.burr-brown.com.

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