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LR4890 Datasheet(PDF) 4 Page - Leshan Radio Company

Part # LR4890
Description  1.25W Fully Differential Audio Power Amplifier with Internal Feedback Resistors
PDF  10 Pages
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Manufacturer  LRC [Leshan Radio Company]
Direct Link  http://www.lrc.cn/
Logo LRC - Leshan Radio Company

LR4890 Datasheet(HTML) 4 Page - Leshan Radio Company

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ELECTRICAL CHARACTERISTICS
VDD＝5V(8 load，AV＝1V，Ta＝25 )
℃
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Current
consumption
IDD
VIN＝0V，no load
2.5
mA
VIN＝0V，RL＝8
4
mA.
Current
consumption
during shutdown
ISD
Shutdown＝VSS
0.1
uA
Output Power
PO
THD＝1％（max）；f＝1KHz
1.25
W
Total Harmonic
Distortion+ Noise
THD+N
Po=0.6Wrms；f=1KHz
0.02
%
Power Supply
Rejection Ratio
PSRR
Vripple＝200mV sine P-P
f＝217Hz
-86
dB
f＝1KHz
-83
dB
Common Mode
Rejection Ratio
CMRR
f=217Hz，VCM＝200mVpp
-78
dB
Output Offset
Voltage
VOS
VIN＝0V
2
mV
Shutdown Voltage
Input High
VSDIH
1.5
V
Shutdown Voltage
Output Low
VSDIL
0.3
V
Closed Loop Gain
AV
Ri
Rf
V/V
LESHAN RADIO COMPANY, LTD.
4/10



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