LM4854 National Semiconductor, LM4854 Datasheet - Page 7

• Manufacturer Part Number: LM4854
• Description: 1.9W Monaural/ 85mW Stereo Headphone Audio Amplifier
• Manufacturer: National Semiconductor

PSRR
t
t
V
V
P
THD+N
S/N
Symbol
RSH
RST
Symbol
IH
IL
O
Electrical Characteristics for Entire Amplifier (V
Electrical Characteristics : Bridged-Mode Operation (V
The following specifications apply for circuit shown in Figure 1, 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
Output Power (Note11)
Total Harmonic Distortion+Noise
Signal-to-Noise Ratio
Power Supply Rejection Ratio
Return-from-Shutdown Time
Return-from-Standby Time
Shutdown or Standby Logic High
Treshold
Shutdown or Standby Logic Low
Treshold
Parameter
Parameter
A
= 25˚C.
THD = 1% (max); f = 1kHz (Note11)
THD = 10% (max); f = 1kHz (Note11)
20Hz ≤ f
f
f
P
IN
IN
C
V
C
O
R
R
R
R
R
R
R
R
RIPPLE
BYPASS
BYPASS
BTL, R
SE, R
= 1kHz
= 1kHz, C
= 900mW, R
L
L
L
L
L
L
L
L
f
f
f
f
= 4Ω (LM4854LD)
= 8Ω
= 4Ω (LM4854LD)
= 8Ω
= 4Ω, P
= 8Ω, P
= 4Ω, P
= 8Ω, P
IN
IN
IN
IN
= 217Hz
= 1kHz
= 217Hz
= 1kHz
IN
L
= 200mV
= 1.0µF, R
L
= 1.0µF
= 32Ω, R
≤ 20kHz
= 8Ω, R
O
O
O
O
BYPASS
= 800mW (LM4854LD)
= 150mW
= 500mW (LM4854LD)
= 150mW
Conditions
L
Conditions
= 8Ω
p-p
7
IN
IN
SOURCE
= 1.0µF
sinewave
= 10Ω
= 10Ω
= 10Ω
DD
= 3.0V)
(Note 8)
(Note 8)
Typical
Typical
DD
0.075
0.21
200
380
530
0.1
1.0
1.1
0.3
0.1
62
62
68
72
90
= 3.0V)
LM4854
LM4854
(Continued)
(Notes 9,
(Notes 9,
Limit
Limit
350
10)
1.0
1.4
0.4
10)
(Notes 4, 9)
A
= 25˚C.
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mW (min)
ms(max)
(Limits)
(Limits)
V (max)
V (min)
Units
Units
mW
ms
dB
dB
dB
dB
dB
W
W
%
%
%
%