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PDF LA74322LP Data sheet ( Hoja de datos )
| Número de pieza | LA74322LP | |
| Descripción | Audio I/O Interface | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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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
Ta≤70°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/
1 page  
www.DataSheet.co.kr
LA74322LP
Serial Data Specification (I2C bus communication)
[Slave Address: 1 1 1 0 1 0 0 0]
No.A1283-5/14
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
LA74322LP
Continued from preceding page.
PIN Pin Name
21 Rch SPK IN
DC voltage
AC voltage
1.65V
Reference output level
=-16dBV
(@Base band input)
=-21dBV
(@audio source input)
Maximum input level
=-10dBV
(@Base band input)
=-9dBV
(@audio source input)
Description of functions
Rch Speaker input pin
Equivalent circuit diagram in pin
VCCSP(R)
5kΩ
21
25kΩ
22 Rch SPK(-)OUT
1.65V
Reference output level
=-1dBV
(@audio source input
=-15dBV)
23 GND SPK(R)
24 Rch
SPK(+)OUT
0V
1.65V
Reference output level
=-1dBV
(@audio source input
=-15dBV)
25 VCC SP(R)
26 VCC SP(L)
27 NC
28 GND SPK(L)
29 NC
30 NC
31 Lch EVR OUT
3.6V
3.6V
0V
1.5V
Reference output level
=-16dBV
(@Base band input)
=-21dBV
(@audio source input)
Maximum input level
=-10dBV
(@Base band input)
=-9dBV
(@audio source input)
Rch speaker reverse phase
output pin
22
VCCSP(R)
25kΩ
22
Rch speaker GND pin
Rch speaker normal phase
output pin
5kΩ
21
VCCSP(R)
Rch speaker power pin
Lch speaker power pin
NC pin
Lch speaker GND
NC pin
NC pin
Lch EVR output pin
20.5kΩ
24
20kΩ
22
VCCA
500Ω
31
Continued on next page.
No.A1283-11/14
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet LA74322LP.PDF ] | |
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