LM4946SQ National Semiconductor, LM4946SQ Datasheet - Page 5

• Manufacturer Part Number: LM4946SQ
• Description: IC,Audio Amplifier,TRIPLE,LLCC,24PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM4946SQ

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Audio Amplifier Function: Headphone/Speaker
• Total Harmonic Distortion: 0.05%%
• 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: 24
• Package Type: LLP EP
• Lead Free Status / Rohs Status: Not Compliant

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