View LC895926_203117.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

PRODUCT INFORMATION
Vol. 65
CD-R/CD-RW Signal-Processing ICs Developed ICs that support 8x recording for the first time in the industry.
LC895840, LC895926
Overview
Due to the continuing growth of the personal computer market and the increasing complexity of application software, the amount of data used by individual users is increasing rapidly. As a result, there is now a rapidly increasing demand for CD-R and CD-RW drives for storage and backup of this data. While the size of this market was 2.76 million units in 1997, that number is expected to double in 1998. While current CD-R drives are mostly 2x or 4x record speed models, there are strong desires for faster write speeds to reduce the total time required for writing data to these devices. The technology for controlling writing to the CD-R media, called the "write strategy," is crucial for increasing the speed of the CD-R recording operation. Currently it is necessary to develop separate write strategies for each of the various types of CD-R media on the market. This results in extremely long development periods for these products. Now, Sanyo, in cooperation with Taiyo Yuden Co., Ltd., has developed the LC895840 optimal CD-R record IC that allows 8x recording in CD-R drives for the first time in the industry. Sanyo has also independently developed the LC895926 CD-R/RW signal-processing IC. Sample shipment of these two ICs as a CD-R/RW signal-processing chip set will begin in September 1998. The LC895840 combines Sanyo's semiconductor technology, which provides stable and high-precision pulse width control with Taiyo Yuden's CD-R recording technology, which is based on their superlative expertise regarding high-speed CD-R recording. Use of the LC895840 significantly eases the development of write technologies, thus allowing drive manufacturers to create 8x record speed CD-R drives with a short development period. The LC895926, which was developed at the same time as the LC895840, implements CD encoder, CD-ROM encoder, CD-ROM decoder, ATIP decoder, and SCSI interface functions that support 8x record and 24x playback in a single chip. Thus, this device implements all of the digital signal processing required in a CD-R/RW drive and can provide significant rationalization of drive designs. This IC also supports multifunction drives by supporting CD-TEXT record and playback, a standard that is just beginning to become popularity.
SANYO Electric Co., Ltd. Semiconductor Business Headquarters Overseas Marketing Division
TOKYO OFFICE: Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 1
PRODUCT INFORMATION
Features and Specifications
CD-R Optimal Record IC: LC895840 * Adjustment of the input EFM signal pulse width and delay to implement 8x recording. * Sampling pulse generation synchronized with the EFM signal. * Support for 1x, 2x, 4x, 6x, and 8x recording * Fabricated in a CMOS process: 3.3 V/5 V power supply * Package: 48-pin QFP CD-R/RW Signal-Processing IC: LC895926 * Supports 8x recording and 24x playback * CD-ROM encoder and decoder functions * Subcode read and write functions * CD encoder function * ATIP decoder and CLV servo functions * SCSI interface * Auto-sequencer 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 power supply * Package: 160-pin QFP
Sample Availability
Samples of the LC895840 and LC895926 are available in September 1998; production quantities will be anticipated in the spring of 1999.
JULY 9, 1998
SANYO Electric Co., Ltd. Semiconductor Business Headquarters Overseas Marketing Division
2
PRODUCT INFORMATION
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 and all SANYO products described or contained herein fall under strategic products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of Japan, such products must not be exported without obtaining export license from the Ministry of International Trade and Industry 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 Business Headquarters Overseas Marketing Division
81998/65
3

▲Up To Search▲

Price & Availability of LC895926

	To Download LC895926 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .