lm49150tlx National Semiconductor Corporation, lm49150tlx Datasheet - Page 7

• Manufacturer Part Number: lm49150tlx
• Description: Mono Class D Audio Subsystem With Earpiece Driver And Stereo Ground Referenced Headphone Amplifiers
• Manufacturer: National Semiconductor Corporation

I
I
V
P
THD+N
η
∈
DD
SD
Symbol
OUT
OS
O
Electrical Characteristics 5.0V
The following specifications apply for V
= 8Ω, f = 1kHz, unless otherwise specified. Limits apply for T
Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion + Noise
Efficiency
Output Noise
Parameter
DD
= LSV
V
LS mode 1
HP mode 8
EP Bypass Mode
LS + HP Mode 5 and Mode 10
LS Mode 1, GAMP_SD = 1
HP Mode 8, GAMP_SD = 1
V
LS Gain = 6dB, Stereo Mode 10
V
Ground Reference, Stereo Mode 10
V
LS Mode 1, THD+N = 1%, f = 1kHz
LS Gain = 6dB, R
LS Mode 1, THD+N = 1%, f = 1kHz
LS Gain = 6dB, R
HP Mode 8, THD+N = 1%, f = 1kHz
HP Attenuation = 0dB, R
HP Mode 8, THD+N = 1%, f = 1kHz
HP Attenuation = 0dB, R
EP Bypass Only, THD+N = 1%
f = 1kHz, R
LS Mode 1, f = 1kHz
P
HP Mode 8, f = 1kHz
P
EP Bypass only, f = 1kHz,
P
LS Output
A-weighted,
inputs terminated to AC GND, Output referred
EP Bypass
LS; Mode 1
LS; Mode 2
LS; Mode 3
HP; Mode 4
HP; Mode 8
HP; Mode 12
IN
IN
IN
IN
OUT
OUT
OUT
DD
= 0, No Load
= 0V, LS, R
= 0V, HP, R
= 0V, EP Bypass only, R
= 5.0V, A
= 600mW; R
= 20mW; R
= 60mW; R
(Notes 2, 7)
L
= 8Ω
V
A
L
Conditions
L
= 0dB, Loudspeaker R
= 25C. LS = Loudspeaker, HP = Headphone, EP = Earpiece.
= 8Ω
L
L
= 32Ω
L
L
7
L
= 32Ω
= 8Ω
= 4Ω
= 8Ω
= 8Ω
L
L
= 16Ω
= 32Ω
L
= 8Ω
L
= 15μH+8Ω+15μH (Note 8), Earpiece R
(Note 6)
Typical
0.015
0.02
1.25
0.01
0.08
135
4.5
4.9
0.9
7.7
3.7
4.4
2.1
42
42
88
10
40
47
48
10
11
9
1
1
9
LM49150
(Note 7)
Limits
40
1
5
5
www.national.com
mV (max)
mV (max)
mV (max)
µA (max)
(Limits)
Units
mW
mW
mW
mA
mA
mA
mA
mA
mA
μV
μV
μV
μV
μV
μV
μV
W
W
%
%
%
%
L