Datasheet

LM4923, LM4923LQBD
SNAS211E –JULY 2004–REVISED MAY 2013 www.ti.com
Electrical Characteristics V
DD
= 5V
(1)(2)
The following specifications apply for V
DD
= 5V, A
V
= 1, and 8Ω load unless otherwise specified. Limits apply for T
A
= 25°C.
LM4923
Units
Symbol Parameter Conditions
(Limits)
Typical
(3)
Limit
(4)
I
DD
Quiescent Power Supply Current V
IN
= 0V, no load 4 9
mA (max)
V
IN
= 0V, R
L
= 8Ω 4 9
I
SD
Shutdown Current V
SHUTDOWN
= GND 0.1 1 µA (max)
P
o
Output Power THD = 1% (max); f = 1 kHz
LM4923, R
L
= 8Ω 1.1 1
THD+N Total Harmonic Distortion+Noise P
o
= 0.4 Wrms; f = 1kHz 0.02 %
PSRR Power Supply Rejection Ratio V
ripple
= 200mV sine p-p
f = 217Hz
(5)
85 73
f = 1kHz
(5)
85 73
CMRR Common_Mode Rejection Ratio f = 217Hz, 50 dB
V
CM
= 200mV
pp
V
OS
Output Offset V
IN
= 0V 4 mV
V
SDIH
Shutdown Voltage Input High 0.9 V
V
SDIL
Shutdown Voltage Input Low 0.7 V
(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) Datasheet min/max specification limits are specified by design, test, or statistical analysis.
(5) 10Ω terminated input.
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