LM4857SP/NOPB National Semiconductor, LM4857SP/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM4857SP/NOPB
• Description: IC AUDIO SUBSYSTEM W/3D AB 28LLP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4857SP/NOPB

• 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: 28-LLP
• Operational Class: Class-AB
• Input Offset Voltage: 40@5VmV
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3/5V
• Supply Current (max): 21@5VmA
• Power Supply Requirement: Dual
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 86dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 2.5/2.7V
• Dual Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• For Use With: LM4857SPBD - BOARD EVALUATION LM4857SP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4857SP; LM4857SPTR

N
PSRR
Xtalk
T
I
I
P
DD
SD
Symbol
Symbol
WU
OUT
O
Audio Amplifier Electrical Characteristics V
The following specifications apply for V
Audio Amplifier Electrical Characteristics V
The following specifications apply for V
Output Noise
Power Supply Rejection Ratio
Crosstalk
Wake-up Time
Supply Current
Shutdown Current
Output Power
Parameter
Parameter
DD
DD
A-weighted, 0dB gain; (Note 11)
LD5 = RD5 = 0; Audio Inputs Terminated
Speaker; Mode 2, 3, 7, 8
Speaker; Mode 12, 13
Headphone; Mode 3, 4, 8, 9
Headphone; Mode 13, 14
Earpiece; Mode 1; CD4 = 0
Earpiece; Mode 6
Earpiece; Mode 11
Line Out; Mode 5
Line Out; Mode 10
Line Out; Mode 15
f = 217Hz; V
0dB gain; (Note 11)
LD5 = RD5 = 0; Audio Inputs Terminated
Speaker; Mode 2, 3, 7, 8
Speaker; Mode 12, 13,
Headphone; Mode 3, 4, 8, 9
Headphone; Mode 13, 14
Earpiece; Mode1
Earpiece; Mode 6
Earpiece; Mode 11
Line Out; Mode 5
Line Out; Mode 10
Line Out; Mode 15
LD5 = RD5 = 0
Loudspeaker; P
f = 1kHz
Headphone; P
f = 1kHz
CD5 = 0; C
CD5 = 1; 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
Mode 0 (Note 9)
LM4857SP
Speaker; THD+N = 1%;
f = 1kHz; 4Ω BTL
= 5.0V, unless otherwise specified. Limits apply for T
= 3.0V, unless otherwise specified. Limits apply for T
IN
= 0V, No load;
B
B
rip
= 2.2µF
= 2.2µF
O
= 200mV
Conditions
Conditions
O
= 15mW;
= 400mW;
7
pp
; C
B
DD
DD
= 2.2µF;
= 5.0V
= 3.0V
(Note 6)
(Note 6)
Typical
Typical
(Notes 1, 2) (Continued)
11.2
0.06
(Notes 1, 2)
120
230
530
5.5
4.5
27
38
10
14
13
18
21
11
14
17
70
64
86
73
75
70
66
86
74
68
85
85
LM4857
LM4857
A
A
= 25˚C.
= 25˚C.
Limits (Notes
Limits (Notes
7, 8)
7, 8)
7.5
2.5
54
60
57
57
19
9
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mA (max)
mA (max)
mA (max)
µA (max)
dB (min)
dB (min)
dB (min)
dB (min)
(Limits)
(Limits)
Units
Units
mW
µV
µV
µV
µV
µV
µV
µV
µV
µV
µV
dB
dB
dB
dB
dB
dB
dB
dB
ms
ms