Cirrus Logic Raises the Bar for Digital Audio Performance with New 24-Bit Stereo D/A Converter.AUSTIN, Texas--(BUSINESS WIRE)--Sept. 15, 1997--The Crystal Semiconductor Products Division of Cirrus Logic Inc. (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 :CRUS) today announced the world's most advanced 24-bit stereo D/A converter, the CS4390, raising the performance bar for the digital audio market. Highlighting the Crystal Semiconductor Products Division's expertise in delta-sigma technology, the CS4390 brings new levels of audio quality to the professional/semi-professional and high-end consumer market. The new delta-sigma DAC See D/A converter and discretionary access control. DAC - Digital to Analog Converter is an ideal solution for CD players, effects processors, digital mixing consoles and DAT (1) (Dynamic Address Translator) A hardware circuit that converts a virtual memory address into a real address. See also DAT file. (2) (Digital Audio Tape) A magnetic tape technology used for backing up data. (digital audio tape See DAT. (storage, music) Digital Audio Tape - (DAT) A format for storing music on magnetic tape, developed in the mid-1980s by Sony and Philips. As digital music was popularized by compact discs, the need for a digital recording format for the consumer existed. ) players. "The new CS4390 underscores Cirrus Logic's commitment to provide the professional and high-end consumer audiomarket with unprecedented levels of audio quality and performance," said John Paulos, director of audio products for Cirrus Logic's Crystal Semiconductor Products Division. "By leveraging our years of expertise in mixed-signal design and by incorporating our advanced delta-sigma conversion techniques, the new 24-bit D/A D/A See: Documents Against Acceptance converted delivers the purest sound quality available today." Unparalleled Performance, Pin Compatible with CS4329 The unparalleled performance of the CS4390 offers 106 dB dynamic range, 115 dB signal-to-noise ratio (EIAJ EIAJ Electronic Industries Association of Japan EIAJ Electronic Industry Association of Japan ) and -97 dB THD+N THD+N Total Harmonic Distortion + Noise . The CS4390 is pin compatible with Cirrus Logic's flagship 20-bit D/A converter, the CS4329. Therefore, OEM (Original Equipment Manufacturer) The rebranding of equipment and selling it. The term initially referred to the company that made the products (the "original" manufacturer), but eventually became widely used to refer to the organization that buys the products and customers can easily upgrade to the 24-bit converter without changing circuit design or layout. The advancements of the CS4390 are directly attributed to Crystal's proprietary delta-sigma technology. The primary purpose of using delta-sigma modulation techniques is to avoid the limitations of laser trimmed resistive DAC architectures by using an inherently linear 1-bit DAC. The advantages of a 1-bit DAC include: ideal differential linearity, no distortion mechanisms due to resistor matching errors, and no linearity drift over time and temperature due to variations in resistor values. -0- Additional features of the CS4390 include: -- 128X Oversampling Creating a more accurate digital representation of an analog signal. In order to work with real-world signals in the computer, analog signals are sampled some number of times per second (frequency) and converted into digital code. -- Independent muting for left and right channels -- Low clock jitter sensitivity -- Digital De-emphasis for 32kHz, 44.1kHz, and 48kHz. -- Filtered Line-Level Outputs -- Linear Phase Filtering -- Adjustable system sampling rates including 32kHz, 44.1kHz, and 48kHz. -- Internal voltage reference circuit isolating the voltage reference from external noise sources -0- Pricing and Availability The CS4390 is available now in a small 20-pin SSOP SSOP Shrink Small Outline Package SSOP Sanitation Standard Operating Procedures (USDA) SSOP Sanitary Standard Operating Procedures SSOP Sharescan-Open Platform (Ecopy) SSOP Site Security Operational Procedures as well as a 20-pin DIP package and is priced at $5.30 each in quantities of 1,000. Crystal Semiconductor Products Division The Crystal Semiconductor Products Division of Cirrus Logic designs, manufactures, and markets advanced analog and digital integrated circuits for data acquisition, consumer/professional audio and video and imaging applications. The Crystal brand is recognized for providing high-performance mixed-signal and DSP (1) (Digital Signal Processor) A special-purpose CPU used for digital signal processing applications (see definition #2 below). It provides ultra-fast instruction sequences, such as shift and add, and multiply and add, which are commonly used in math-intensive solutions for consumer and industrial markets. Cirrus Logic Inc. Cirrus Logic Inc. is a leading manufacturer of advanced integrated circuits for personal computing, communications, mass storage, consumer and industrial markets. The company's "systems in silicon" add high value and software richness to major brands worldwide. With a focus on innovating microperipheral chip solutions that make the human interface with electronics more natural and exciting, Cirrus Logic is committed to technology leadership in the Interactive Age. Cirrus Logic news releases may be obtained by fax by dialing 800/359-6414, or be dialing 510/249-4200 from outside the United States, or via the internet on the World Wide Web at http://www.cirrus.com/ CONTACT: Cirrus Logic Inc. Crystal Semiconductor Products Division Jo-Dee Benson, 512/912-3823 jbenson@crystal.cirrus.com or Cirrus Logic Inc. Crystal Semiconductor Products Division Tom Stein, 512/912-3113 tstein@crystal.cirrus.com |
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