Ordering number : ENN6951
O1802RM (OT) No. 6951-1/17
Overview
The LA8522M is an I/O switching audio signal-processing
IC for use in facsimile units and telephones. It integrates a
crosspoint switch, a BTL power amplifier, an electronic
volume control, a microphone amplifier, and other
functions on a single chip.
Applications
Personal facsimile units and telephones
Functions
Crosspoint switch (equivalent to an 4 × 4 switch)
BTL power amplifier
Electronic volume control
Output level switching (ATT1: 0, –4, –8, –12 dB,
ATT2: 0, –6 dB)
Serial interface
Features
Built-in BTL power amplifier (8 to 32 Ω load): VCC =
5 V, RL = 16 Ω, Pomax = 250 mW
Built-in electronic volume (seven 4.0 dB steps)
Two output level switching circuits (4 positions and 2
positions)
Crosspoint switch that supports mixing
Package Dimensions
unit: mm
3112A-MFP24S
SANYO: MFP24S
[LA8522M]
LA8522M
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Audio Signal-Processing IC with I/O Switching
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.
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
7V
Allowable power dissipation
Pd max
Ta ≤ 70°C
550
mW
(Mounted on a glass-epoxy board: 114.3 × 76.1 × 1.6 mm3)
Operating temperature
Topr
–20 to +70
°C
Storage temperature
Tstg
–40 to +150
°C
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
5V
Allowable operating supply voltage range
VCCop
4.5 to 6.0
V
Operating Conditions
at Ta = 25°C