LM49370RL/NOPB National Semiconductor, LM49370RL/NOPB Datasheet - Page 9
![IC AUDIO SUBSYSTEM 1.2W 49USMDXT](/photos/7/0/70002/pkg_rla_sml.jpg)
LM49370RL/NOPB
Manufacturer Part Number
LM49370RL/NOPB
Description
IC AUDIO SUBSYSTEM 1.2W 49USMDXT
Manufacturer
National Semiconductor
Series
Boomer®, PowerWise®r
Type
Class Dr
Datasheet
1.LM49370RLNOPB.pdf
(100 pages)
Specifications of LM49370RL/NOPB
Output Type
1-Channel (Mono) with Mono and Stereo Headphones
Max Output Power X Channels @ Load
1.2W x 1 @ 8 Ohm; 52mW x 2 @ 16 Ohm
Voltage - Supply
2.5 V ~ 5.5 V
Features
3D, Depop, I²C, I²S, Microphone, Mute, PCM, Shutdown, SPI, Standby, Volume Control
Mounting Type
Surface Mount
Package / Case
49-MicroSMDxt
Dc
07+
For Use With
LM49370RLEVAL - BOARD EVALUATION LM49370RL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM49370RLTR
- Current page: 9 of 100
- Download datasheet (3Mb)
LOUDSPEAKER AMPLIFIER
P
LS
LS
PSRR
SNR
e
V
HEADPHONE AMPLIFIER
P
PSRR
SNR
HP
e
ΔA
X
V
EARPIECE AMPLIFIER
N
N
LS
OS
HP
TALK
OS
THD+N
EFF
THD+N
CH-CH
Symbol
LS
HP
LS
HP
Max Loudspeaker Power
Loudspeaker Harmonic Distortion
Efficiency
Power Supply Rejection Ration
(Loudspeaker)
Signal to Noise Ratio
Output Noise
Loudspeaker Offset Voltage
Headphone Power
Power Supply Rejection Ratio
(Headphones)
Signal to Noise Ratio
Headphone Harmonic Distortion
Output Noise
Stereo Channel-to-Channel Gain
Mismatch
Stereo Crosstalk
Offset Voltage
Parameter
8Ω load, LS_V
8Ω load, LS_V
8Ω load, LS_V
8Ω load, LS_V
P
0 dB Input
MCLK = 12.000 MHz
AUX inputs terminated
C
V
f
From 0 dB Analog AUX input, A-weighted
A-weighted
32Ω load, 3.3V, SE
16Ω load, 3.3V, SE
32Ω load, 3.3V, OCL, VCM = 1.5V
32Ω load, 3.3V, OCL, VCM = 1.2V
16Ω load, 3.3V, OCL, VCM = 1.5V
16Ω load, 3.3V, OCL, VCM = 1.2V
AUX inputs terminated
C
V
f
SE Mode
OCL Mode
VCM = 1.2V
OCL Mode
VCM = 1.5V
From 0dB Analog AUX input
A-weighted
SE Mode
OCL Mode
VCM = 1.2V
OCL Mode
VCM = 1.5V
32Ω load, 3.3V, P
A-weighted
SE Mode
OCL Mode
RIPPLE
RIPPLE
O
RIPPLE
RIPPLE
BYPASS
BYPASS
= 400mW
= 217 Hz
= 217 Hz
= 200 mV
= 200 mV
= 1.0 µF
= 1.0 µF
9
Conditions
DD
DD
DD
DD
= 5V
= 4.2V
= 3.3V
= 3.3V,
P-P
P-P
O
= 7.5mW
(Note 6)
Typical
0.04
0.05
1.2
0.9
0.5
0.3
84
70
90
62
12
33
52
31
20
50
32
60
68
65
98
97
96
12
61
71
8
LM49370
(Notes 7,
Limit
0.43
11)
80
25
55
www.national.com
W (min)
dB(min)
dB(min)
Units
(min)
mW
mW
mW
mW
mW
mW
mV
mV
dB
µV
dB
dB
dB
dB
dB
µV
dB
dB
dB
W
W
%
%
%
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