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.
Monolithic Linear IC
Video Camera 2-Channel
Microphone Amplifiers
Ordering number:ENN3849B
LA7470M, 7470V
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O2500TN (KT)/31596TH/8301TS (KOTO) No.3849–1/5
1
7
7.8
0
5
0
1
24
0.65
0.22
(0.33)
0.15
(
1
12
24
13
12.5
(0.75)
1.0
0.15
0.35
5
7
0
1
1
0
Package Dimensions
unit:mm
3112A-MFP24S
[LA7470M]
SANYO : MFP24S
unit:mm
3175B-SSOP24
[LA7470V]
SANYO : SSOP24
Overview
The LA7470M and the LA7470V are ICs with on-chip
microphone amplification peripherals for stereo video cam-
era applications. They show excellent characteristics in
space design.
Features
Low-noise (Input 0.75
μ
Vrms, JIS-A filter, Rg=1k
).
2 inputs (internal/external microphones).
On-chip HPF (with a through switch) for internal MIC
wind noise elimination.
On-chip external power supply (with a current limiter).
Capacitors=less than 1.0
μ
F (excluding ripple filters).
Stereo/monaural detect output pin for external MICs.
Functions
2-channel microphone amplifiers.
Internal MIC power supply (2 channels).
Internal/external MIC select switch.
External power supply (with a current limiter).
HPF (with a through switch).
External MIC stereo/monaural detector.
Ripple filter.