LM4857GR National Semiconductor, LM4857GR Datasheet - Page 7
LM4857GR
Manufacturer Part Number
LM4857GR
Description
IC AUDIO SUBSYSTEM W/3D 49UBGA
Manufacturer
National Semiconductor
Series
Boomer®r
Type
Class ABr
Datasheet
1.LM4857GR.pdf
(40 pages)
Specifications of LM4857GR
Output Type
2-Channel (Stereo) with Mono and Stereo Headphones
Max Output Power X Channels @ Load
1.6W x 2 @ 4 Ohm; 75mW x 2 @ 32 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Features
3D, Depop, I²C, Mute, Shutdown, Thermal Protection, Volume Control
Mounting Type
Surface Mount
Package / Case
49-Micro-array
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
LM4857GRTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
I
I
P
THD+N
V
DD
SD
Symbol
O
OS
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Audio Amplifier Electrical Characteristics V
The following specifications apply for V
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature (T
Thermal Resistance
Supply Current
Shutdown Current
Output Power
Total Harmonic Distortion Plus
Noise
Offset Voltage
Parameter
J
)
DD
Internally Limited
−65˚C to +150˚C
V
LD5 = RD5 = 0 (Note 9)
Mode 1, 6, 11
Mode 4, 5, 9, 10, 14, 15
Mode 2, 3, 7, 8, 12, 13
Output mode 0 (Note 9)
LM4857SP
Speaker; THD+N = 1%;
f = 1kHz; 4Ω BTL
Speaker; THD+N = 1%;
f = 1kHz; 8Ω BTL
Headphone; THD+N = 1%;
f = 1kHz; 32Ω SE
Earpiece; THD+N = 1%;
f = 1kHz; 32Ω BTL, CD4 = 0
Earpiece; THD+N = 1%;
f = 1kHz; 32Ω BTL, CD4 = 1
LD5 = RD5 = 0
Speaker; P
f = 1kHz; 8Ω BTL
Headphone; P
f = 1kHz; 32Ω SE
Earpiece; P
f = 1kHz; 32Ω BTL, CD4 = 0
Line Out, V
f = 1kHz; 5kΩ SE
Speaker; LD5 = RD5 = 0
Earpiece; LD5 = RD5 = 0
= 5.0V, unless otherwise specified. Limits apply for T
IN
−0.3V to V
= 0V, No load;
(Notes 1, 2)
2000V
150˚C
+0.3V
O
200V
O
O
6.0V
= 400mW;
= 1V
= 15mW;
DD
O
Conditions
= 15mW;
RMS
7
;
Operating Ratings
Temperature Range
T
Supply Voltage
MIN
θ
θ
θ
θ
JA
JA
JC
JA
DD
≤ T
(TLA30CZA) (Note 10)
(SPA28A) (Note 12)
(SPA28A)
(GRA49A) (Note 13)
A
= 5.0V
≤ T
MAX
(Note 6)
Typical
0.009
0.05
0.04
0.05
(Notes 1, 2)
100
135
0.2
1.6
1.2
13
75
6
5
5
5
LM4857
A
= 25˚C.
Limits (Notes
7, 8)
9.5
0.9
2.5V ≤ I
21
60
80
40
30
8
3
−40˚C ≤ T
2.7V ≤ V
2
CV
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A
DD
DD
mA (max)
mA (max)
mA (max)
mW (min)
mW (min)
mV (max)
mV (max)
µA (max)
(Limits)
W (min)
≤ +85˚C
62˚C/W
42˚C/W
57˚C/W
Units
mW
≤ 5.5V
≤ 5.5V
3˚C/W
W
%
%
%
%