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LM4811 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM4811
Description  Dual 105mW Headphone Amplifier with Digital Volume
PDF  18 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4811 Datasheet(HTML) 4 Page - National Semiconductor (TI)

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Electrical Characteristics (Notes 1, 8)
The following specifications apply for V
DD = 3.3V unless otherwise specified, limits apply to TA = 25˚C.
Symbol
Parameter
Conditions
LM4811
Units
(Limits)
Typical
(Note 4)
Limit
(Note 5)
I
DD
Supply Current
V
IN = 0V, IO = 0A
1.1
mA
I
SD
Shutdown Current
V
IN = 0V
0.3
µA
V
OS
Output Offset Voltage
V
IN = 0V
4.0
mV
P
o
Output Power
0.1% THD+N; f = 1kHz
R
L =16
Ω
40
mW
R
L =32
Ω
28
mW
THD+N
Total Harmonic Distortion
P
O = 25mW, RL =32
Ω
f = 20Hz to 20kHz
0.5
%
PSRR
Power Supply Rejection Ratio
C
B = 1.0µF, VRIPPLE = 100mVPP
f = 217Hz
60
dB
V
IH
(CLOCK, UP/DN, SHUTDOWN)
Input Voltage High
1.4
V (min)
V
IL
(CLOCK, UP/DN, SHUTDOWN)
Input Voltage Low
0.4
V (max)
Digital Volume Range
Input referred minimum gain
−33
dB
Input referred maximum gain
+12
dB
Digital Volume Stepsize
All 16 discrete steps
3.0
dB
Stepsize Error
All 16 discrete steps
±0.3
dB
Channel−to−Channel Volume
Tracking Error
All gain settings from
−33dB to +12dB
0.15
dB
Shutdown Attenuation
Shutdown mode active
−100
dB
Electrical Characteristics (Notes 1, 8)
The following specifications apply for V
DD = 2.6V unless otherwise specified, limits apply to TA = 25˚C.
Symbol
Parameter
Conditions
LM4811
Units
(Limits)
Typical
(Note 4)
Limit
(Note 5)
I
DD
Supply Current
V
IN = 0V, IO = 0A
1.0
mA
I
SD
Shutdown Current
V
IN = 0V
0.3
µA
V
OS
Output Offset Voltage
V
IN = 0V
4.0
mV
P
o
Output Power
0.1% THD+N; f = 1kHz
R
L =16
Ω
20
mW
R
L =32
Ω
16
mW
THD+N
Total Harmonic Distortion
P
O = 15mW, RL =32
Ω
f = 20Hz to 20kHz
0.6
%
PSRR
Power Supply Rejection Ratio
C
B = 1.0µF, VRIPPLE = 100mVPP
f = 217Hz
60
dB
V
IH
(CLOCK, UP/DN, SHUTDOWN)
Input Voltage High
1.4
V (min)
V
IL
(CLOCK, UP/DN, SHUTDOWN)
Input Voltage Low
0.4
V (max)
Digital Volume Range
Input referred minimum gain
−33
dB
Input referred maximum gain
+12
dB
Digital Volume Stepsize
All 16 discrete steps
3.0
dB
Stepsize Error
All 16 discrete steps
±0.3
dB
Channel−to−Channel Volume
Tracking Error
All gain settings from
−33dB to +12dB
0.15
dB
www.national.com
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