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LM4954 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM4954
Description  HIgh Voltage 3 Watt Audio Power Amplifier
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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 4 page
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Electrical Characteristics V
DD =5V
(Notes 1, 2)
The following specifications apply for V
DD = 5V, AV-BTL = 6dB, and RL =8
Ω unless otherwise specified. Limits apply for T
A =
25˚C.
Symbol
Parameter
Conditions
LM4954
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 8)
I
DD
Quiescent Power Supply Current
V
IN = 0V, RL =8
Ω BTL
2.7
5
mA (max)
I
SD
Shutdown Current
V
SD = GND (Note 9)
0.01
1
µA (max)
V
OS
Output Offset Voltage
8
25
mV (max)
P
o
Output Power
THD+N = 1% (max); f = 1kHz
1.2
1.1
W (min)
THD+N
Total Harmonic Distortion + Noise
P
O = 600mWrms; f = 1kHz
0.1
%
PSRR
Power Supply Rejection Ratio
V
ripple = 200mVsine p-p,
C
B = 2.2µF, Input terminated
with 10
Ω to GND
f
Ripple = 217Hz, Input Referred
80
63
dB (min)
V
ripple = 200mVsine p-p,
C
B = 2.2µF, Input terminated
with 10
Ω to GND
f
Ripple = 1kHz, Input Referred
80
dB
V
SDIH
Shutdown High Input Voltage
1.2
V (min)
V
SDIL
Shutdown Low Input Voltage
0.4
V (max)
T
WU
Wake-up Time
C
B = 2.2µF
130
ms
OUT
Output Noise
A-Wtg, Input terminated with 10
to GND,
Output referred
20
µV
RMS
R
PD
Pul Down Resistor on Shutdown
75
k
Electrical Characteristics V
DD =3V
(Notes 1, 2)
The following specifications apply for V
DD = 3V, AV-BTL = 6dB, and RL =8
Ω unless otherwise specified. Limits apply for T
A =
25˚C.
Symbol
Parameter
Conditions
LM4954
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 8)
I
DD
Quiescent Power Supply Current
V
IN = 0V, RL =8
Ω BTL
2.5
5
mA (max)
I
SD
Shutdown Current
V
SD = GND (Note 9)
0.01
1
µA (max)
V
OS
Output Offset Voltage
5
25
mV (max)
P
o
Output Power
THD+N = 1% (max); f = 1kHz
380
360
mW (min)
THD+N
Total Harmonic Distortion + Noise
P
o = 100mWrms; f = 1kHz
0.18
%
PSRR
Power Supply Rejection Ratio
V
ripple = 200mVsine p-p,
C
B = 2.2µF, Input teiminated
with 10
Ω to GND,
f
Ripple = 217Hz, Input referred
80
63
dB (min)
V
ripple = 200mVsine p-p,
C
B = 2.2µF, Input teiminated
with 10
Ω to GND,
f
Ripple = 1kHz, Input referred
80
dB
V
SDIH
Shutdown High Input Voltage
1.2
V (min)
V
SDIL
Shutdown Low Input Voltage
0.4
V (max)
T
WU
Wake-Up Time
C
B = 2.2µF
130
ms
OUT
Output Noise
A-Wtg, Input terminated with 10
to GND,
Output referred
20
µV
RMS
R
PD
Pull Down Resistor on Shutdown
75
k
www.national.com
4




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