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Sanyo Electric Components Datasheet

LA74322LP Datasheet

Audio I/O Interface

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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
Ta70°C, Mounted on a specified board *1
Ratings
5.5
TBD
-20 to +70
-55 to +150
Unit
V
mW
°C
°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
Datasheet pdf - http://www.DataSheet4U.net/


Sanyo Electric Components Datasheet

LA74322LP Datasheet

Audio I/O Interface

No Preview Available !

www.DataSheet.co.kr
LA74322LP
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage (VCCA)
Recommended supply voltage (VCCHP)
Recommended supply voltage (VCCSP)
Allowable operating voltage range (VCCA)
Allowable operating voltage range (VCCHP)
Allowable operating voltage range (VCCSP)
*2: Take care not to exceed Pd max.
Symbol
VCCA
VCCHP
VCCSP
VCCAop
VCCHPop
VCCSPop
*2
Conditions
Ratings
3.0
3.0
3.6
2.7 to 3.6
2.7 to 3.6
2.7 to 5.0
Unit
V
V
V
V
V
V
Electrical Characteristics at Ta=25°C, VCCA=VCCHP=3.0V, VCCSP=5.0V, f=1kHz, ALC1 LEVEL=-17dBV
MODE, ALC2 LEVEL=-11dBV MODE
No. Parameter
Circuit current
1 VCCA current dissipation
Symbol
ICCA
2 VCCA STANDBY
current dissipation
3 VCCHP current dissipation 1
4 VCCHP current dissipation 2
5 VCCHP STANDBY
current dissipation
6 VCCSP current dissipation 1
7 VCCSP current dissipation 2
8 VCCSP STANDBY
current dissipation
MIC output system
9 INT MIC voltage gain
10 INT MIC output distortion
ICCAS
ICCHP1
ICCHP2
ICCHPS
ICCSP1
ICCSP2
ICCSPS
VGIMIC
HDIMIC
11 INT MIC output noise voltage
12 INT MIC maximum input level
VNIMIC
VMIMIC
13 INT MIC supply voltage
14 EXT MIC voltage gain
15 EXT MIC output distortion
VVIMIC
VGEMIC
HDEMIC
16 EXT MIC output noise voltage
17 EXT MIC maximum input level
VNEMIC
VMEMIC
18 EXT MIC supply voltage
VVEMIC
REC output system: ALC1 level=-17dBV mode
19 REC reference output level
VOREC
20 REC reference output distortion HDREC
21 ALC1 level characteristics
22 ALC1 distortion characteristics
VOALC1
VDALC1
23 REC output noise voltage
24 ALC1 maximum input level
VNOR
VMXALC
Conditions
VCCA=3.0V, MIC1 ON,
audio source system (stereo) OFF, receiver
system ON
VCCA=3.0V, 0V applied to STANBDY pin
VCCHP=3.0V:
Receiver SPK AMP POWER SAVE MODE
VCCHP=3.0V:
H/P AMP POWER SAVE MODE
VCCHP=3.0V,
0V applied to STANBDY pin
VCCSP=5.0V: SPK POWER ON MODE
VCCSP=5.0V: SPK POWER SAVE MODE
VCCSP=5.0V, 0V applied to STANBDY pin
INT MIC input, VIN=-29dBV
INT MIC input, VIN=-29dBV,
THD: from 2nd to 5th harmonic
INT MIC no input, JIS-A Filter
INT MIC input, INT MIC input level at which up to
5th order distortions of MIC output are reduced to
3% or less
At 6.2kΩ load
EXT MIC input, VIN=-29dBV
EXT MIC input, VIN=-29dBV,
THD: from 2nd to 5th harmonic
EXT MIC no input, JIS-A Filter
EXT MIC input, EXT MIC input level at which up
to 5th order distortions of MIC output are reduced
to 3% or less
At 6.2kΩ load
ALC1 input, VIN=-40dBV
ALC1 input, VIN=-40dBV, THD: from 2nd to 5th
harmonic
ALC1 input, VIN=-14dBV (reference+26dB)
ALC1 input, VIN=-14dBV (reference+26dB),
THD: from 2nd to 5th harmonic
ALC1 no input, JIS-A Filter
ALC1 input, ALC1 input level at which up to 5th
order distortions of REC output are reduced to
3% or less
Ratings
min typ max
Unit
9.5 mA
10 μA
8.5 mA
2.7 mA
10 μA
6.5 mA
0.3 mA
10 μA
10
0.03
-100
1.7
10
0.03
-100
1.7
dB
%
dBV
-20 dBV
V
dB
%
dBV
-20 dBV
V
-16.5
0.03
-10
0.3
-83
dBV
%
dBV
%
dBV
-10 dBV
Continued on next page.
No.A1283-2/14
Datasheet pdf - http://www.DataSheet4U.net/


Part Number LA74322LP
Description Audio I/O Interface
Maker Sanyo Semicon Device
Total Page 14 Pages
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