LA74322LP Datasheet, PDF (1/14 Pages) Sanyo Semicon Device – Audio I/O Interface for Cell Phone

Ordering number : EN*A1283
LA74322LP
Monolithic Linear IC
Audio I/O Interface
for Cell Phone
Overview
The LA74322LP is an audio I/O interface IC for cell phones that integrates, on a single chip, amplifiers for a monaural
speaker, EVR stereo headphone, internal and external microphones, and a receiver speaker.
Features
• INT & EXT MIC amplifiers selectable (MIC power supply built-in)
• ALC amplifier (ALC level: 3 levels selectable)
• Base band/audio source input selector switch
• ALC (through switch, ALC level: 4 levels selectable)
• EVR stereo headphone amplifier
• Monaural speaker amplifier
• Receiver speaker amplifier (mono) standby control
• I²C bus supported (first mode)
Specifications
Maximum Ratings at Ta=25°C
Parameter
Supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
*1: Mounted on a specified board: TBD
Symbol
VCC max
Pd max
Topr
Tstg
Conditions
Ta≤70°C, Mounted on a specified board *1
Ratings
Unit
5.5
V
TBD
mW
-20 to +70
°C
-55 to +150
°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.
73008 TI IM No.A1283-1/14