lm4854mt National Semiconductor Corporation, lm4854mt Datasheet - Page 6

• Manufacturer Part Number: lm4854mt
• Description: 1.9w Monaural, 85mw Stereo Headphone Audio Amplifier
• Manufacturer: National Semiconductor Corporation

www.national.com
P
THD+N
S/N
P
THD+N
VOUT
XTALK
S/N
I
I
I
V
Symbol
Symbol
DD
STBY
SD
Symbol
O
O
OS
Electrical Characteristics Bridged-Mode Operation (V
Electrical Characteristics : SE Operation (V
Electrical Characteristics for Entire Amplifier (V
The following specifications apply for for the circuit shown in Figure 1 and a measurement bandwith of 20Hz to 80kHz, unless
otherwise specified. Limits apply for T
The following specifications apply for for the circuit shown in Figure 1 and a measurement bandwith of 20Hz to 80kHz, unless
otherwise specified. Limits apply for T
The following specifications apply for circuit shown in Figure 1, unless otherwise specified. Limits apply for T
Output Power (Note 11)
Total Harmonic Distortion+Noise
Signal-to-Noise Ratio
Output Power (Note 11)
Total Harmonic Distortion+Noise
Output Voltage Swing
Channel Separation
Signal-to-Noise Ratio
Quiescent Power Supply Current
Standby Quiescent Power Supply
Current
Shutdown Current
Output Offset Voltage
Parameter
Parameter
Parameter
A
A
= 25˚C.
= 25˚C.
THD = 1% (max); f = 1kHz (Note12)
THD = 10% (max); f = 1kHz (Note12)
20Hz ≤ f
f
f
P
THD+N = 1.0%, f = 1kHz, R
THD+N = 10%, f = 1kHz, R
THD+N = 1.0%, f = 1kHz, R
THD+N = 10%, f = 1kHz, R
20Hz ≤ f
THD = 1.0%, R
f
f
P
IN
IN
IN
IN
V
V
V
8 Ω Load
O
O
R
R
R
R
R
R
R
R
R
R
R
IN
STANDBY
SHUTDOWN
= 1kHz
= 1kHz, C
= 1kHz, C
= 1kHz, C
= 900mW, R
= 50mW, R
L
L
L
L
L
L
L
L
L
L
L
= 0V, I
= 3.2Ω (LM4854LD)
= 4Ω (LM4854LD)
= 8Ω
= 3.2Ω (LM4854LD)
= 4Ω (LM4854LD)
= 8Ω
= 4Ω, P
= 8Ω, P
= 4Ω, P
= 8Ω, P
= 32Ω, P
IN
IN
≤ 20kHz
≤ 20kHz
= GND
O
BYPASS
O
O
O
O
BYPASS
BYPASS
= GND
= 0A, 8Ω Load
O
L
= 1.0W (LM4854LD)
= 400mW
= 1.5W (LM4854LD)
= 50mW
L
Conditions
Conditions
L
Conditions
= 50mW
= 32Ω
= 5kΩ
= 8Ω
6
= 1.0µF
= 1.0µF, R
= 1.0µF
L
L
L
L
DD
= 32Ω
= 16Ω
= 32Ω
= 16Ω
L
= 32Ω
= 5V)
DD
= 3.0V)
DD
(Note 8)
(Note 8)
(Note 8)
Typical
Typical
Typical
0.005
0.18
0.08
16.0
105
170
200
1.9
1.7
1.1
2.3
2.1
1.3
0.3
0.1
0.3
4.0
4.0
2.0
90
93
55
90
= 5V)
LM4854
LM4854
LM4854
(Notes 9,
(Notes 9,
(Notes 9,
Limit
Limit
Limit
20.0
0.02
140
10)
1.0
10)
10)
85
10
40
A
= 25˚C.
mA (max)
mV (max)
mW(min)
mW(min)
µA (max)
µA (max)
(Limits)
W (min)
(Limits)
(Limits)
Units
Units
Units
V
mW
mW
dB
dB
dB
W
W
W
W
W
%
%
%
%
%
P-P