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PRODUCT INFORMATION
Vol. 72
Playback-Only MD Chip Set Developed The industry's lowest power dissipation achieved.
LC89641, LA9606W
Overview
A bright future is forecast for the mini-disc (MD) player in the portable audio market. The EIAJ expects that, with the MD player market outside Japan now in motion, there will be a worldwide demand for 8 million units, of which portable MD players will hold 45% of the total. The MD player is expected to become the most important product in the portable audio market. Initially, interest in the MD format focussed on its ability to record. However, the playback-only unit as a portable device has become the mainstream, and there is now fierce competition between manufacturers striving for further miniaturization and even longer battery life in their products. Given this background, Sanyo develops and supplies chip sets that are specialized for playback-only portable MDs and that feature low power dissipation. Now, Sanyo has developed a chip set consisting of the LC89641 and LA9606W that features even lower power dissipation. Power dissipation has been reduced by over 60% as compared to earlier Sanyo products. Also, the provision of macro commands eases the development of microcontroller software, and the on-chip digital servo and automatic adjustment functions allow this chip set to flexibly support a wide range of pickups and discs.
Features
* A 4MHz internal operating clock frequency was adopted, allowing this chip set to achieve the industry's lowest power dissipation of 46 mW when the chip set is operating. * The chip set provides play, scan, and other macro commands, making microcontroller software development extremely simple. * Digital servo and automatic adjustment functions are included to allow this chip set to flexibly support a wide range of pickups and discs.
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
Specifications LC89641
* Power dissipation: 30 mW (Supply voltage - I/O: 2.4 V, Internal: 2.0 V) * Master clock: 384fs (16.9344 MHz) -- Internal operations are at 4.23 MHz * EFM/ACIRC decoder circuit -- Powerful error correction (C1: dual errors, C2: quad errors) * Digital servo and automatic adjustment functions * SPP (anti-vibration control) circuit -- Supports 4 or 16 Mbits external DRAMs * Extensive set of intelligent commands for simple playback * ATRAC decoder circuit -- Fully floating point high-precision calculations -- Low power design using a multiplier circuit * Built-in 1-bit D/A converter -- Digital deemphasis function -- Digital bass boost function -- Digital attenuation function * Supply voltage - I/O: 2.2 to 3.6 V, Internal: 1.9 to 3.6 V * Package: 100-pin flat package (lead pitch: 0.5 mm)
LA9606W
* Power dissipation: 16 mW (Supply voltage: 2.4 V) * Servo signal-processing circuit -- I-V conversion amplifier -- Focus error amplifier -- Tracking error amplifier -- VCA * RF signal-processing circuit -- Pit/group switching RF amplifier -- RF equalizer amplifier * APC circuit * Supports sleep mode * Pre-pit circuit (pit/group discrimination circuit) * Supply voltage: 2.2 to 5.5 V * Package: 48-pin flat package (lead pitch: 0.5 mm)
SANYO Electric Co., Ltd. Semiconductor Business Headquarters Overseas Marketing Division
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PRODUCT INFORMATION
Sample Availability
Samples of the LC89641 and LA9606W are available in October 1998; production quantities will be anticipated in November 1998.
SEPTEMBER 28, 1998
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 Business Headquarters Overseas Marketing Division
PS 101598/72
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