LM4857SP/NOPB National Semiconductor, LM4857SP/NOPB Datasheet - Page 27

• 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

Application Information
M - M
L - L
R - R
G
G
G
SD - Shutdown
MUTE - Mute
Mode CD3
M
L
R
10
12
13
14
15
11
- Left Stereo Volume Control Gain
0
1
2
3
4
5
6
7
8
9
- Right Stereo Volume Control Gain
- Mono Volume Control Gain
IN
IN
IN
Input Level
Input Level
Input Level
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
RD5
CD5
LD5
CD2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
CD1 CD0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
(G
(G
+(G
+(G
Line Out
(G
(G
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
Mono
L
M
M
R
SD
L
R
x L) +
x M)
x M)
x R)
x L)
x R)
TABLE 5. Mixer and Output Mode Control
(Continued)
0
1
0
1
0
1
TABLE 6. National 3D Enhancement
(G
(G
(G
(CD4 = 0)
(G
(G
(G
TABLE 7. Wake-up Time Select
Mono Earpiece
M
L
L
M
R
R
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
x L) +
x M) +
x L) +
x M)
x R)
x R)
+2(G
(CD4 =
2(G
2(G
2(G
2(G
2(G
M) +
L) +
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
SD
M)
R)
R)
1)
L)
M
M
R
L
L
27
R
x
x
x
x
x
x
Loudspeaker
2(G
2(G
Loudspeaker National 3D Off
Loudspeaker National 3D On
Headphone National 3D Off
Headphone National 3D On
Fast Wake-up Setting
Slow Wake-up Setting
2(G
2(G
2(G
2(G
2(G
2(G
L
L
SD
SD
M
M
SD
SD
SD
SD
SD
SD
M
M
SD
SD
L
L
L
x L) +
x L) +
x M)
x M)
x M)
x M)
x L)
x L)
Loudspeaker
2(G
2(G
2(G
2(G
2(G
2(G
2(G
2(G
R
R
SD
SD
M
M
SD
SD
SD
SD
SD
SD
M
M
SD
SD
R
R
R
x R) +
x R) +
x M)
x M)
x M)
x M)
x R)
x R)
Headphone
(G
(G
(G
(G
(G
(G
(G
(G
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
L
L
M
M
M
M
SD
L
L
x L) +
x L) +
L
x M)
x M)
x L)
x L)
x M)
x M)
Headphone
(G
(G
(G
(G
(G
(G
(G
(G
www.national.com
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
R
R
M
M
M
M
R
R
SD
x R) +
x R) +
R
x M)
x M)
x R)
x R)
x M)
x M)