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Toshiba Selects Crystal's Audio IC for Tecra Notebook and Portege Ultraportable Multimedia PCs
Business Wire, Oct 7, 1996
AUSTIN, Texas--(BUSINESS WIRE)--Oct. 7, 1996--Crystal Semiconductor Corporation announces that Toshiba has incorporated the Crystal CS4232 audio subsystem IC in its Portege ultraportable computer and Tecra Series of high-performance notebook PCs.
The multimedia capabilities of Toshiba's Tecra 500, 710, 720 and 730 Series and Portege 650CT include Zoomed Video (ZV) technology for advanced applications such as MPEG full-motion video playback and Crystal's highly integrated audio subsystem for industry-leading audio fidelity. With this combination, Toshiba's new notebooks give mobile users multimedia performance that equals or surpasses even the most advanced desktop systems. The new PCs are marketed in the U.S. by the Computer Systems Division of Toshiba America Information Systems (TAIS).
Crystal's audio subsystems are the most comprehensive and widely used integrated audio solutions. Crystal's audio ICs are the industry's most complete Windows 95 compatible audio subsystems, and the only single-chip that offer complete Plug-and-Play compatibility, full-duplex operation, and true 16-bit CD-quality sound for motherboard applications. The CS4232 is the first in a family of pin-compatible devices that now includes the CS4236 with FM synthesis and the CS4237/CS4238 that add 3-dimensional sound. The product family also features advanced power management (APM), comprehensive SoundBlaster Pro compatibility and external digital volume control.
Crystal's audio subsystems incorporate APM technology that accommodates a variety of intelligent software- and hardware-driven power-saving modes from standby mode to full powerdown. From the power-saving mode, the user can resume operation in a matter of seconds, including listening to audio where the user left off. APM is especially important to notebook applications, helping extend battery life.
"Toshiba's selection of the CS4232 underscores the fact that Crystal's products are the best audio solutions in the industry for portable PCs," explains Brad Fluke, director of marketing for Crystal's Computer Products Division. "Crystal has consistently led the industry in technical innovation and audio system integration and our products provide superior audio to industry-leading desktop PC manufacturers. However, consumers now expect desktop functionality from their portable machines. As demonstrated by Toshiba's new designs, the high performance and minimal space requirements (1.75 sq. in.) of Crystal's family of audio ICs allow portable PC manufacturers to integrate desktop-equivalent audio into their portable designs."
Crystal Audio Subsystem IC Family Features
Crystal's audio solutions integrate all the digital audio and analog mixing functions required for recording and playing audio on a personal computer. Crystal sets industry standards with its delta-sigma audio ADCs and DACs -- architectures that have been imitated but not equaled by any other manufacturer. These products offer the highest level of system integration, highest dynamic range, and lowest system cost of any data converter technology available for digital audio systems. Crystal's delta-sigma audio products are enabling applications such as consumer bookshelf, portable audio and surround-sound systems; automotive; multimedia computer; music and professional audio equipment.
In addition to full DOS games and Windows Sound System compatibility, Crystal's ICs provide an MPU-401-compatible Universal Asynchronous Receiver Transmitter (UART), supplying an integrated serial Musical Instrument Digital Interface (MIDI) port with an industry standard interface.
The IC family supports full duplex operation with independent sample rate (11KHz or 44KHz) and data format (8-bit or 16-bit) selection. The devices' integrated serial data port delivers special effects capabilities important to a wide range of applications. Their unique full-duplex capability allows simultaneous data Play/Record, critical for advanced applications such as teleconferencing and full-duplex speakerphones. The IC family also supports a comprehensive set of programmable power management functions, which are essential for notebook and Green PC applications.
Crystal's audio subsystem ICs are supplied with a complete suite of drivers supporting major operating systems such as Windows 3.1, OS/2, Windows NT and Windows 95. Crystal also provides a wide variety of DOS and Windows applications, control applets and diagnostic software to support multimedia development.
Crystal Semiconductor Corporation
Crystal Semiconductor Corporation, headquartered in Austin, Texas, designs, manufactures and markets advanced analog and digital integrated circuits for applications in the multimedia, telecommunications, data communications, consumer audio, data conversion and signal acquisition markets. Crystal is a wholly owned subsidiary of Cirrus Logic, Inc. (Nasdaq: CRUS).
For more information regarding the CS4232 and other multimedia audio codec products, contact Crystal Semiconductor Corporation, 4210 S. Industrial Drive, Austin, Texas 78744; Telephone 512-442-7555 or 800-888-5016; Fax 512-462-2723, WWW http://www.crystal.com. -0-
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