Datasheet

LM4911, LM4911Q
www.ti.com SNAS152M –MAY 2004–REVISED JUNE 2011
Electrical Characteristics V
DD
= 2.4V
(1)(2)(3)
The following specifications apply for V
DD
= 2.4V, R
L
= 16Ω, and C
B
= 4.7µF unless otherwise specified.
Limits apply to T
A
= 25°C.
LM4911 LM4911Q
Units
Symbol Parameter Conditions
(Limits)
Typ
(4)
Limit
(5)
Typ
(4)
Limit
(5)
V
IN
= 0V, I
O
= 0A
mA
T
A
= +25°C 1.5 3 1.5 3
I
DD
Quiescent Current (max)
mA
T
A
= –40°C to +105°C 4
(max)
I
SD
Shutdown Current V
SHUTDOWN
= GND 0.1 2 0.1 2 µA (max)
V
MUTE
= V
DD
, C-Coupled
I
M
Mute Current T
A
= +25°C 40 80 40 80 µA (max)
T
A
= –40°C to +105°C 100 µA (max)
Shutdown Voltage Input
V
SDIH
T
A
= –40°C to +105°C 1.8 1.8 V
High
V
SDIL
Shutdown Voltage Input Low T
A
= –40°C to +105°C 0.4 0.4 V
V
MIH
Mute Voltage Input High T
A
= –40°C to +105°C 1.8 1.8 V
V
MIL
Mute Voltage Input Low 0.4 0.4 V
THD = 1%; C-CUPL, R
L
= 16Ω
mW
T
A
= +25°C 25 25 20
(min)
P
O
Output Power
mW
T
A
= –40°C to +105°C 15
(min)
THD ≤1%; R
L
= 32Ω, f = 1kHz 12 12
Total Harmonic Distortion + % (max)
THD+N P
O
= 15.3mW, f = 1kHz 0.1 0.5 0.1 0.5
Noise
(6)
OCL 0.5 0.5 s
T
WU
Wake Up Time
C-Coupled, C
O
= 100μF 2 2 s
T
UM
Un-mute Time C-Coupled, C
O
= 100μF 0.01 0.02 0.01 0.02 s (max)
Output Voltage Change on mV
V
OSD
C-Coupled, C
O
= 100μF 1 1
Release from Shutdown (max)
Power Supply Rejection V
RIPPLE
= 200mV sine p-p
PSRR 65 65 dB
Ratio f = 1kHz
(7)
V
ON
Output Noise Voltage BW = 20 Hz to 20kHz, A-weighted 10 10 dB
(1) All voltages are measured with respect to the GND 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 ensures 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) Datasheet min/max specification limits are specified by design, test, or statistical analysis.
(4) Typicals are measured at 25°C and represent the parametric norm.
(5) Limits are specified to TI's AOQL (Average Outgoing Quality Level).
(6) The limit is specified over the temperature range of –40°C to +85°C.
(7) 10Ω terminated input.
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