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Oak Technology rolls out 48X CD-R/RW controller

Posted: 13 Mar 2002 ?? ?Print Version ?Bookmark and Share

Keywords:oak technology? controller ic? driver ic? driver? controller?

Claimed to be industry's first 48X CD-R/RW optical storage controller, the OTI-9797T controller is capable of 48X CD-R, as well as 24X CD-RW write speeds and supports constant angular velocity (CAV) and constant linear velocity (CLV) write methods.

The controller is pin-compatible with the company's 32X OTI-9797S controller and is suitable for use in PC-based or consumer audio CD-R/RW applications with IDE interfaces.

With CAV, the drive is not required to change the disc spin rate when tracking from one area of the disc to another, thereby reducing seek times and power dissipation. By supporting the CAV writing technique, the controller is claimed to enable drives to record a full 650MB CD in just over 2min.

The OTI-9797T also supports the Mt. Rainier standard that enables native OS support of data storage on CD-RW. This allows OEMs the ability to offer drag-and-drop CD rewriting and on-the-fly formatting of the disc.

The controller also features the company's ExacLink buffer underrun protection, a 48X CD-DSP that uses a proprietary slicing technique, and digital symmetry control to offer increased frequencies and gain programmability. It also includes an Ultra DMA IDE/ATAPI controller and USB1.1 interface.

Package in a 208-pin housing, the OTI-9797T controller is priced at under $10 each in production quantities of 10,000.

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