LA4538M View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
View to exact match
LA4538M Datasheet PDF : 3 Pages
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Ordering number:ENN2667A
Monolithic Linear IC
LA4538M
Ripple Filter-Provided Stereo Power Amplifier
for 1.5V Headphone Stereos
Features
Package Dimensions
• Low current dissipation.
• Excellent reduced voltage characteristics.
• Minimum number of external parts required.
• On-chip power switch function.
unit:mm
3111-MFP14S
[LA4538M]
• Power amplifier section
Output power 8mW typ (VCC=1.5V, RL=16Ω, f=1kHz,
THD=10%)
14
8
Ripple rejection 46dB typ (VCC=1.0V, VR=–30dBm,
fR=100Hz)
• Ripple filter section
Ripple rejection 39dB typ (VCC=1.0V, VR=–35dBm,
fR=100Hz)
Less output voltage loss
1
7
0.15
8.0
Pin 8 can be used to perform the muting current.
Specifications
Absolute Maximum Ratings at Ta = 25˚C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
IO7
Pd max
Topr
Tstg
Conditions
Quiescent
Pin 7 flow-out current
0.35
1.0 1.0
SANYO : MFP14S
Ratings
Unit
4.5 V
5.0 mA
300 mW
–20 to +75 ˚C
–40 to +125 ˚C
Operating Conditions at Ta = 25˚C
Parameter
Recommended oprating voltage
Operating voltage range
Recommended load resistance
Symbol
VCC
VCC op
RL
Conditions
Ratings
Unit
1.5 V
0.9 to 4.0 V
16 to 32 Ω
Operating Characteristics at Ta = 25˚C, RL=16Ω, Rg=600Ω, See specified Test Circuit.
Parameter
Symbol
Conditions
Ratings
Unit
min typ max
Quiescent current
Voltage gain
Voltage gain difference
Icco1
Icco2
Icco3
VG
∆VG
VCC=1.20V, quiescent, RL3 → OFF
VCC=2.50V, pin 14 → GND, RL3 → OFF
VCC=2.50V, pin 1 → GND, RL3 → OFF
VCC=0.90V, f=1kHz, VO=–20dBm
VCC=0.90V, f=1kHz, VO=–20dBm
4.5
7.0 mA
1.5
2.5 mA
1.0 µA
27.5
29 31.5 dB
1.0 dB
Continued on next page.
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
21800TN (KT)/3239YT/N197TA, TS No.2667–1/3
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