71608 TI / O1007 TI IM No.A0905-1/14

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

device, the customer should always evaluate and test devices mounted in the customer

equipment.

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.

LA74320FN

Overview

The LA74320FN is an audio I/O interface IC for cell phones that integrates, on a single chip, amplifiers for a stereo 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

• Stereo speaker amplifier

• Receiver speaker amplifier (mono) standby control

Specifications

Maximum Ratings at Ta=25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Supply voltage

VCC max

5.5

V

Allowable power dissipation

Pd max

Ta

≤70°C, Mounted on a specified board *1

TBD

mW

Operating temperature

Topr

-20 to +70

°C

Storage temperature

Tstg

-55 to +150

°C

*1: Mounted on a specified board: TBD

Ordering number : EN*A0905 A

Monolithic Linear IC

Audio I/O Interface

for Cell Phone