LM4946TMX/NOPB National Semiconductor, LM4946TMX/NOPB Datasheet - Page 5

IC AUDIO SUBSYSTEM 1.3W D 25USMD

LM4946TMX/NOPB

Manufacturer Part Number
LM4946TMX/NOPB
Description
IC AUDIO SUBSYSTEM 1.3W D 25USMD
Manufacturer
National Semiconductor
Series
Boomer®r
Type
Class Dr
Datasheet

Specifications of LM4946TMX/NOPB

Output Type
1-Channel (Mono) with Stereo Headphones
Max Output Power X Channels @ Load
1.3W x 1 @ 8 Ohm; 85mW x 2 @ 32 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Features
3D, Depop, I²C, Mute, Shutdown, SPI, Thermal Protection, Volume Control
Mounting Type
Surface Mount
Package / Case
25-MicroSMD
Operational Class
Class-AB
Audio Amplifier Function
Headphone/Speaker
Single Supply Voltage (typ)
3/5V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Requirement
Single
Rail/rail I/o Type
No
Power Supply Rejection Ratio
72dB
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
25
Package Type
uSMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM4946TMX
I
I
V
P
THD+N
DD
SD
Symbol
OS
O
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics 3.3V
The following specifications apply for V
Supply Voltage
Storage Temperature
Input Voltage
ESD Susceptibility (Note 3)
ESD Machine model (Note 6)
Junction Temperature
Solder Information (Note 1)
Vapor Phase (60 sec.)
Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion + Noise
Parameter
DD
= 3.3V, T
−65°C to +150°C
−0.3 to V
Output Modes 2, 4, 6
V
SE Headphone
Output Modes 1, 3, 5, 7
V
SE Headphone
Output Modes 2, 4, 6
V
OCL Headphone
Output Modes 1, 3, 5,
V
OCL Headphone
Output Modes 7
V
OCL Headphone
Output Mode 0
V
Mono
V
Headphones (Note 11)
MONO
THD+N = 1%; f = 1kHz, BTL, Mode 1
R
THD+N = 1%; f = 1kHz, SE, Mode 4
MONO
f = 1kHz
P
R
f = 1kHz
P
IN
IN
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
(Note 2)
= 0V; No load,
= 0V; No load,
= 0V; No load,
= 0V; No load,
= 0V; No load,
= 0V, Mode 7
= 0V, Mode 7
A
= 250mW; R
= 12mW; R
and L
and L
DD
(Notes 2, 7)
OUT
= 25°C, all volume controls set to 0dB, unless otherwise specified.
150°C
215°C
OUT
2.0kV
200V
6.0V
+0.3
; R
OUT
OUT
L
; R
= 8Ω
Conditions
L
L
5
L
= 32Ω, SE, Mode 4
= 32Ω
= 8Ω, BTL, Mode 1
Operating Ratings
Thermal Resistance (Note 8)
 θ
 θ
Temperature Range
Supply Voltage (V
Supply Voltage (I
  
  
LLP
micro SMD
JA
JA
Infrared (15 sec.)
(typ) - SQA24A
(typ) - TMD25A
2
DD
C/SPI) (Note 10)
)
(Note 4)
Typical
0.015
3.25
5.65
0.02
0.05
540
6.5
12
35
4
5
3
LM4946
2.2V
1.7V
(Note 5)
Limits
10.5
500
6.5
50
15
30
1
I
I
2.7V
I
2
2
2
CSPI_V
CSPI_V
CSPI_V
−40°C to 85°C
V
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DD
mA (max)
mA (max)
mV (max)
mW (min)
mW (min)
DD
DD
µA (max)
DD
(Limits)
46°C/W
49°C/W
Units
mA
mA
mA
220°C
%
%
5.5V
5.5V
5.5V
V
DD

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