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PRODUCT INFORMATION
Vol.94
Industry's Fastest CD-R/RW Signal-Processing IC Achieves a 12x Write Speed BURN-Proof technology achieves error-free writing
LC898023, LC898093
Overview
Recently, the demand for CD-R/RW drives has been increasing rapidly due to their use as data storage in personal computer systems. The market for these drives will reach 12 million units in 1999, and that figure is expected to double in the year 2000. While most of the currently available CD-R drives provide a 4x to 8x write speed, there are increasing demands for even higher speeds to respond to the needs for even shorter recording times. Sanyo has already developed and released CD-R/RW signal-processing ICs that achieve the industry's fastest write speed, 12x. These have been incorporated in Sanyo-brand CD-R/RW drives and these drives are already shipping. Sanyo has now incorporated their newly-developed "BURN-Proof" technology, a revolutionary technology that eliminates write errors, into these ICs to develop the LC898023 and LC898093 products. These ICs will be available in sample quantities in mid-November 1999 at sample prices of 3,000 and 2,500, respectively. The functions provided by these ICs support 12x write and 40x read speeds, and include CD encoder/decoder, CD-ROM encoder/decoder, digital servo, write strategy, ATIP demodulator, ATIP decoder and PC interface functions. In addition, Sanyo's BURN-Proof functionality has been incorporated in software in these system-on-chip ICs. The LC898023 includes a SCSI interface that supports Ultra SCSI, and the LC898093 includes an ATAPI interface that supports Ultra DMA 33. Otherwise, these two ICs provide identical functionality. Recording at high speed on CD-R/RW media requires a write strategy function that performs write control optimal for the disc actually being written to, since CD-R/RW media manufactured by different manufacturers has different characteristics. Sanyo CD-R/RW ICs incorporate a Sanyo-developed write strategy function that performs stable and high-precision pulse width control. This function eases the difficulties both in optical pickup matching during drive design as well as in the design of
SANYO Electric Co., Ltd. Semiconductor Company Overseas Marketing Division
TOKYO OFFICE: Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 1
PRODUCT INFORMATION
drives that can handle a wide range of CD-R/RW media. Since these ICs include all the digital signal-processing circuits required for CD-R/RW drives that provide high-speed recording, and also incorporate Sanyo's newly-developed BURN-Proof technology, these ICs can contribute to end-product simplification and shorter development cycles.
Features and Functions
* BURN-Proof technology achieves error-free recording. * Supports 12x write and 40x read speeds. * CD decoding and encoding functions * CD-ROM decoding and encoding functions * Subcode decoding and encoding functions * Digital servo function * Write strategy function * ATIP demodulator, ATIP decoder, and wobble-CLV servo functions * Personal computer interfaces LC898023: SCSI interface (Ultra SCSI) LC898093: ATAPI interface (Ultra DMA 33) * CAV audio function * Auto-sequence function * Batch transfer function * Multi-block transfer function * CD-text support * Buffer RAM mapping function * Fabricated in a CMOS process. 3.3 V, 5 V supply voltage * Package: 208-pin SQFP
SANYO Electric Co., Ltd. Semiconductor Company Overseas Marketing Division
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PRODUCT INFORMATION
Sample Availability
The LC898023 (SCSI) and LC898093 (ATAPI) will be available in sample quantities in midNovember 1999 and in production quantities by spring 2000.
NOVEMBER 9, 1999
s Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. s SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein. s Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. s SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. s In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. s No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. s Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
SANYO Electric Co., Ltd. Semiconductor Company Overseas Marketing Division
PS.N0999/94
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