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
Recording and Playback System
for Microcassette Players
Ordering number:ENN3977
LA4166M
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
21500TH (KT)/D161TS No.3977–1/7
Package Dimensions
unit:mm
3108-MFP24D
[LA4166M]
SANYO : MFP24D
Overview
The LA4166M is a recording and playback system IC that
incorporates an on-chip moter control governor, making it
ideal for use in microcassette and compact cassette record-
ers. The LA4166M features single-pin control for select-
ing recording or playback mode and a recording-mode in-
dicator LED driver. The LA4166M is pin-compatible with
the LA4165M. The LA4166M incorporates a preamplifier,
an automatic level control (ALC) circuit and a power am-
plifier.
The preamplifier functions as both recording microphone
amplifier and playback equalization amplifier. The ALC
circuit cuts high-level inputs and boosts low-level inputs
during recording. The power amplifier outputs 215mW (typ)
into a 4
speaker. The LA4166M operates from a 1.8 to
3.6V supply and is available in 24-pin MFPs.
Features
On-chip motor control governor.
Single-pin control for selecting recording or playback
mode.
Recording-mode indicator LED driver.
Pin-compatible with LA4165M.
Recording and playback preamplifier.
ALC circuit.
Power amplifier.
215mW (typ) output power into 4
speaker.
1.8 to 3.6V sypply.
24-pin MFP.
0.25
24
13
15.3
112
0.67
0.4
1.27
7.9
9.2
10.5
0.625
2.55max
2.25
0.1
Pin Assignment
Top view
Specifications
Absolute Maximum Ratings at Ta = 25C
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