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LM4889 Datasheet(PDF) 4 Page - Texas Instruments

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Part # LM4889
Description  1 Watt Audio Power Amplifier
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM4889 Datasheet(HTML) 4 Page - Texas Instruments

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LM4889
SNAS157H – APRIL 2002 – REVISED MAY 2013
www.ti.com
Electrical Characteristics VDD = 5V
(1)(2) (continued)
The following specifications apply for VDD = 5V, AV = 2, and 8Ω load unless otherwise specified. Limits apply for TA = 25°C.
LM4889
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)(5)
Vripple = 200mV sine p-p
fripple = 217Hz
62
dB
fripple = 1kHz
66
dB
PSRR
Power Supply Rejection Ratio
Vripple = 200mV sine p-p
Input Floating
75
68
dB
Electrical Characteristics VDD = 3.3V
(1) (2)
The following specifications apply for VDD = 3.3V, AV = 2, and 8Ω load unless otherwise specified. Limits apply for TA = 25°C.
LM4889
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)(5)
VIN = 0V, Io = 0A, no Load
3.5
7
mA (max)
IDD
Quiescent Power Supply Current
VIN = 0V, Io = 0A, with BTL Load
4.5
7
mA (max)
ISD
Shutdown Current
Vshutdown = GND
(6)
0.01
2
µA (max)
VSDIH
Shutdown Voltage Input High
1.2
V (min)
VSDIL
Shutdown Voltage Input Low
0.4
V (max)
Po
Output Power
THD = 1% (max); f = 1kHz
0.4
W
THD+N
Total Harmonic Distortion+Noise
Po = 0.25Wrms; f = 1kHz
0.1
%
Vripple = 200mV sine p-p
PSRR
Power Supply Rejection Ratio
fripple = 217Hz
60
dB
fripple =1kHz
62
dB
(1)
All voltages are measured with respect to the ground pin, unless otherwise specified.
(2)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3)
Typicals are measured at 25°C and represent the parametric norm.
(4)
Limits are specified to TI's AOQL (Average Outgoing Quality Level).
(5)
Datasheet min/max specification limits are specified by design, test or statistical analysis.
(6)
For DSBGA only, shutdown current is measured in a Normal Room Environment. Exposure to direct sunlight will increase ISD by a
maximum of 2µA.
Electrical Characteristics VDD = 2.6V
(1) (2)
The following specifications apply for VDD = 2.6V, AV = 2, and 8Ω load unless otherwise specified. Limits apply for TA = 25°C.
LM4889
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)(5)
IDD
Quiescent Power Supply Current
VIN = 0V, Io = 0A, no Load
2.6
6
mA (max)
VIN = 0V, Io = 0A, with BTL Load
3.0
6
mA (max)
ISD
Shutdown Current
Vshutdown = GND
(6)
0.01
2
µA (max)
Output Power ( 8
Ω )
THD = 1% (max); f = 1 kHz
0.2
W
P0
Output Power ( 4
Ω )
THD = 1% (max); f = 1 kHz
0.22
W
THD+N
Total Harmonic Distortion+Noise
Po = 0.1Wrms; f = 1kHz
0.08
%
(1)
All voltages are measured with respect to the ground pin, unless otherwise specified.
(2)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3)
Typicals are measured at 25°C and represent the parametric norm.
(4)
Limits are specified to TI's AOQL (Average Outgoing Quality Level).
(5)
Datasheet min/max specification limits are specified by design, test or statistical analysis.
(6)
For DSBGA only, shutdown current is measured in a Normal Room Environment. Exposure to direct sunlight will increase ISD by a
maximum of 2µA.
4
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