LA74322LP SANYO [Sanyo Semicon Device], LA74322LP Datasheet

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LA74322LP

Manufacturer Part Number
LA74322LP
Description
Audio I/O Interface for Cell Phone
Manufacturer
SANYO [Sanyo Semicon Device]
Datasheet
Ordering number : EN*A1283
LA74322LP
Overview
Features
Specifications
Maximum Ratings at Ta=25°C
*1: Mounted on a specified board: TBD
Supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
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.
• 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
• I
2
C bus supported (first mode)
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
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
device, the customer should always evaluate and test devices mounted in the customer
equipment.
Parameter
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
V CC max
Pd max
Topr
Tstg
Symbol
Monolithic Linear IC
Audio I/O Interface
for Cell Phone
Ta≤70°C, Mounted on a specified board *1
Conditions
'
s products or
Ratings
73008 TI IM No.A1283-1/14
-55 to +150
-20 to +70
TBD
5.5
Unit
mW
°C
°C
V

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LA74322LP Summary of contents

Page 1

... Ordering number : EN*A1283 LA74322LP Overview The LA74322LP is an audio I/O interface IC for cell phones that integrates 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) • ...

Page 2

... HDREC 21 ALC1 level characteristics VOALC1 22 ALC1 distortion characteristics VDALC1 23 REC output noise voltage VNOR 24 ALC1 maximum input level VMXALC LA74322LP Symbol Conditions Aop V CC HPop V CC SPop *2 Symbol Conditions V CC A=3.0V, MIC1 ON, audio source system (stereo) OFF, receiver system A=3 ...

Page 3

... Serial CLOCK frequency FCLK 49 Serial input LOW level SERLO 50 Serial input HIGH level SERHI LA74322LP Symbol Conditions Audio source pin input =-25dBV, EVR=Max Audio source pin input =-25dBV, EVR=Max, THD: from 2nd to 5th harmonic Audio source pin input =-25dBV, ...

Page 4

... VORSP2 VORSP3 VNRSP VMXRSP LA74322LP Address ...

Page 5

... Serial Data Specification (I C bus communication) [Slave Address LA74322LP No.A1283-5/14 ...

Page 6

... H/P(L)OUT 35 H/P GND 36 H/P(R)OUT 37 Receiver & Receiver(+)OUT 40 Receiver GND 1 LA74322LP BOTTOM VIEW 0. (0.7) 0 LA74322LP EVR(R)OUT 19 HP(R)IN 18 Rch(Audio source)IN 17 Base Band IN 16 Lch(Audio source)IN 15 ALC2 DET 14 Base Band OUT ALC1 DET 13 ...

Page 7

... EVR=Max. audio source input =-30dBV 3.0V 3 CLOCK 4 DATA 5 A GND 0V LA74322LP LA74322LP EVR Characteristic 5bit data (decimal notation) AC voltage Description of functions Receiver reverse phase output pin Power pin for analog signal part CLOCK input pin DATA input pin ...

Page 8

... Reference output level =-40dBV Maximum output level =-10dBV 9 MIC1 V CC 2.3V 10 VREF 2.3V LA74322LP AC voltage Description of functions MIC1 input pin MIC2 input pin MIC output pin MIC1 power pin MIC V CC and VREF ripple rejection pin Equivalent circuit diagram in pin 500Ω ...

Page 9

... ALC1 DET 14 Base_Band 1.5V Reference output level OUT =-16dBV Maximum input level =-3dBV 15 ALC2 DET LA74322LP AC voltage Description of functions MIC2 power pin ALC1 input pin ALC1 detection pin Base band output pin ALC2 detection pin Equivalent circuit diagram in pin 2.2kΩ 11 23kΩ ...

Page 10

... Maximum input level =-10dBV (@Base band input) =-9dBV (@audio source input) LA74322LP AC voltage Description of functions Lch audio input pin Base band input pin Rch audio source input pin Rch HP input pin Rch EVR output pin ...

Page 11

... Maximum input level =-10dBV (@Base band input) =-9dBV (@audio source input) LA74322LP AC voltage Description of functions Rch Speaker input pin Rch speaker reverse phase output pin Rch speaker GND pin Rch speaker normal phase output pin ...

Page 12

... GND Rch HP OUT 1.5V Reference output level =-23.5dBV Maximum output level =-3dBV LA74322LP AC voltage Description of functions Lch HP input pin SPK VREF and ripple rejection pin STANDBY control pin Lch HP output pin HP GND pin Rch HP output pin Equivalent circuit diagram in pin 1kΩ ...

Page 13

... Receiver (+) 1.5V Reference output level OUT =-10dBV (@ EVR=Max audio source input =-30dBV) 40 Receiver GND 0V Internal Equivalent Circuit Diagram LA74322LP AC voltage Description of functions HP & receiver speaker power pin Receiver speaker normal phase output pin Receiver GND Equivalent circuit diagram in pin 20.5kΩ 39 20kΩ ...

Page 14

... SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of July, 2008. Specifications and information herein are subject to change without notice. LA74322LP No.A1283-14/14 PS ...

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