BURR-BROWN UNVEILS AUDIO DAC FOR DVD APPLICATIONS.Burr-Brown Corp. (NASDAQ NASDAQ in full National Association of Securities Dealers Automated Quotations U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on :BBRC), Tucson, Ariz., has introduced the PCM1604, a high-performance, six-channel audio DAC See D/A converter and discretionary access control. DAC - Digital to Analog Converter (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 DVD: see digital versatile disc. DVD in full digital video disc or digital versatile disc Type of optical disc. The DVD represents the second generation of compact-disc (CD) technology. (Digital Versatile Disc digital versatile disc or digital video disc (DVD), a small plastic disc used for the storage of digital data. The successor media to the compact disc (CD), a DVD can have as much as 26 times the storage capacity of a CD. ). The PCM1604 contains six 24-bit, 192kHz DACs combined together on a single monolithic integrated circuit The common form of chip design, in which the base material (substrate) contains the pathways as well as the active elements that take part in its operation. . 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 Detail The 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 highly integrated 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 A stopband is a band of frequencies, between specified limits, in which a circuit, such as a filter or telephone circuit, does not let signals through. Frequencies between the lower and upper limits are not transmitted. attenuation and +/-0.002dB passband pass·band n. The range of frequencies transmitted by a bandpass filter. 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-Brown Burr-Brown Corporation is a worldwide leader 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 See DSP. Digital Signal Processing - (DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled). relating to communications, industrial and process control, test and measurement, medical instrumentation, digital audio, multimedia, and personal computer systems. For more information, visit http://www.burr-brown.com or call 800/548-6132. |
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