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PDF LC898212XA Data sheet ( Hoja de datos )
| Número de pieza | LC898212XA | |
| Descripción | AF Control LSI | |
| Fabricantes | Sanyo | |
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Ordering number : ENA2118A
LC898212XA
CMOS LSI
AF Control LSI
Overview
The AF control device, LC898212XA (LC898212XA-MH), provides an ideal way to implement the reduced power
consumption and the improved autofocus precision and speed (reduced convergence time) required in high-pixel-
count camera modules for use in smartphones.
The LC898212XA integrates on a single chip an equalizer circuit employing digital calculation, and it can be
combined with position sensors to build a closed-loop actuator control system. Since closed-loop control provides
better ability to maintain the control object than conventional open-loop systems and is not affected by position
differences, the LC898212XA is ideal for use in AF systems used in a wide variety of cameras. A closed-loop system
uses position sensors for position control, and power consumption is lower than with conventional open-loop control,
which uses current values for position control.
In addition, a new PWM drive system employed suppresses noise that could affect image quality while achieving
reduced power consumption, making this IC ideal for use in mobile devices such as smartphones. The filter
coefficients of the equalizer circuit can be adjusted to any values desired by making register settings via I2C
communication. This makes it possible to build a control circuit optimized to the various types of actuators and
thereby achieve faster autofocus (reduced convergence time) performance.
The integrated ADC provides up to 10-bit precision for highly accurate AF position control. Also integrated on-chip
are a constant current supply DAC for drive and an op-amp with adjustable gain for use with the position sensors
indispensable for building a closed-loop control system.
* I2C Bus is a trademark of Philips Corporation.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any
guarantee thereof. If you should intend to use our products for new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely
responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. 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.
91212HK/82912HKPC 20111107-S00001 No.A2118-1/5
1 page  
LC898212XA
SANYO Semiconductor Co.,Ltd. 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 Semiconductor Co.,Ltd.
products described or contained herein.
Regarding monolithic semiconductors, if you should intend to use this IC continuously under high temperature,
high current, high voltage, or drastic temperature change, even if it is used within the range of absolute
maximum ratings or operating conditions, there is a possibility of decrease reliability. Please contact us for a
confirmation.
SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all
semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents 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.
In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are
controlled under any of applicable local export control laws and regulations, such products may require the
export license from the authorities concerned in accordance with the above law.
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 consent of SANYO Semiconductor Co.,Ltd.
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 Semiconductor Co.,Ltd. product that you intend to use.
Upon using the technical information or products described herein, neither warranty nor license shall be granted
with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third
party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's
intellectual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of September, 2012. Specifications and information herein are subject
to change without notice.
PS No.A2118-5/5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet LC898212XA.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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