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參數資料
| 型號： | LA7471M |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2 CHANNEL, AUDIO PREAMPLIFIER, PQFP36 |
| 封裝： | QFP-36 |
| 文件頁數： | 1/10頁 |
| 文件大小： | 180K |
| 代理商： | LA7471M |
Ordering number : EN4488A
O3098HA (OT)/40596TH/42094TH (OT) B-0326 No. 4488-1/10
LA7471M
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Two-Channel Microphone Amplifier
for Video Camera
Monolithic Linear IC
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.
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.
Overview
The LA7471M is a stereo microphone amplifier for use in
video camera products. It includes an automatic wind
noise detection and removal circuit, an equalization circuit
to compensate for microphone frequency characteristics
and an L/R mixing circuit to provide a good stereo image.
The LA7471M provides high quality audio for video
camera applications.
Functions
Microphone amplifier (two channels)
Internal/external microphone switching
Automatic wind noise detection/prevention circuit
High-pass filter and disable switch
Internal microphone power supply
External microphone power supply (with current
limiter)
Ripple filter
Stereo/mono detection for external microphones
Features
Automatic wind noise detection and exclusion circuit
(The high-pass filter provides a first-order to third-order
linear conversion.)
High-quality audio (low noise, microphone frequency
characteristic compensation, and stereo enhancement)
Package Dimensions
unit: mm
3162B-QFP36
Specifications
Maximum Ratings at Ta = 25°C
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
7.0
V
Allowable power dissipation
Pd max
Ta
≤ 65°C
300
mW
Operating temperature
Topr
–10 to +65
°C
Storage temperature
Tstg
–55 to +150
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
5.0
V
Operating supply voltage range
VCC op
4.5 to 5.5
V
SANYO: QFP36
[LA7471M]
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