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PDF LA74309TT Data sheet ( Hoja de datos )
| Número de pieza | LA74309TT | |
| Descripción | Monolithic Linear IC Microphone Amplifier | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENA0903
www.DataSheet4U.com
LA74309TT
Monolithic Linear IC
Microphone Amplifier for
Digital Still Camera
Overview
LA74309TT is a microphone amplifier for digital still cameras that have mono audio recording. The analog signal processing
for the recording of the digital still camera or other equipment can be easily composed, because the MIC power supply and
the ALC circuit are built-in. Moreover, the regulator is built-in, therefore external regulator IC is unnecessary.
Features
• Microphone (MIC) amplifier (+20dB)
• MIC power supply with built-in pull-up resistor
• Automatic level control (ALC) amplifier (output level=-1dBV≈2.5Vpp)
• 3rd order LPF (fc=11kHz)
• 3.3V regulator (internal supply voltage: VCCA≈3.0V)
• Standby control (ICC≤10µA)
Specifications
Maximum Ratings at Ta=25°C
Parameter
Maximum power supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Ta≤85°C
Conditions
Ratings
4.0
50
-20 to +85
-55 to +150
Unit
V
mW
°C
°C
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 (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). 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 applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us 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.
82907 TI IM 20061115-S00005 No.A0903-1/5
1 page  
Continued from preceding page.
PIN No. Pin Name DC voltage
8 ALC DET
LA74309TT
AC voltage
Functions
ALC detector
9 REC OUT 1.60V Output level=-9dBV REC output
(At MIC IN=-69dBV)
10 VCC
3.3V
Power supply
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Equivalent Circuit
VCCA (=3.0V)
1kΩ 500Ω
8
VCC (=3.3V)
500Ω 11kΩ
9
11kΩ
VREFL
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.
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.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
for volume production.
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
intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
This catalog provides information as of August, 2007. Specifications and information herein are subject
to change without notice.
PS No.A0903-5/5
5 Page | ||
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| PDF Descargar | [ Datasheet LA74309TT.PDF ] | |
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