LM4673TM National Semiconductor, LM4673TM Datasheet - Page 5

• Manufacturer Part Number: LM4673TM
• Description: AUDIO AMP, MONO CLASS D, POWERWISE
• Manufacturer: National Semiconductor

Specifications of LM4673TM

• Operational Class: Class-D
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 2.65x1@4OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.03@8Ohm@0.1W%
• 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: 78dB
• Single Supply Voltage (min): 2.4V
• 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: 9
• Package Type: uSMD
• Amplifier Class: D
• No. Of Channels: 1
• Output Power: 2.65W
• Supply Voltage Range: 2.4V To 5.5V
• Thd + N: 0.03% @ 100mW, VDD=5V
• Load Impedance: 4ohm
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Not Compliant

P
THD+N
PSRR
SNR
ε
CMRR
T
T
η
OUT
Symbol
WU
SD
O
Output Power
Total Harmonic Distortion + Noise
Power Supply Rejection Ratio
(Input Referred)
Signal to Noise Ratio
Output Noise
(Input Referred)
Common Mode Rejection Ratio
(Input Referred)
Wake-up Time
Shutdown Time
Efficiency
Parameter
R
THD = 10% (max)
f = 1kHz, 22kHz BW
V
V
V
R
THD = 1% (max)
f = 1kHz, 22kHz BW
V
V
V
V
V
V
V
f
Inputs to AC GND, C
V
f
Inputs to AC GND, C
V
V
Inputs to AC GND, C
No Weighting
V
C
V
f
V
V
R
V
R
Ripple
Ripple
Ripple
DD
DD
DD
DD
DD
DD
DD
DD
DD
Ripple
Ripple
DD
DD
DD
DD
DD
DD
DD
L
L
I
L
L
= 2μF, A Weighted
= 15μH + 8Ω + 15μH
= 15μH + 8Ω + 15μH
= 8Ω
= 8Ω
= 3.6V
= 5V
= 3.6V
= 2.5V
= 5V
= 3.6V
= 2.5V
= 5V, P
= 3.6V, P
= 2.5V, P
= 5V, P
= 3.6V, f = 20Hz – 20kHz
= 3.6V, Inputs to AC GND
= 3.6V, V
= 3.6V, P
= 5V, P
= 217Hz, V
= 1kHz, V
= 217Hz
= 200mV
= 200mV
O
O
OUT
Conditions
= 0.1W, f = 1kHz
O
O
= 1W
Ripple
OUT
= 0.1W, f = 1kHz
= 0.1W, f = 1kHz
DD
= 1W
PP
PP
5
DD
= 400mW
Sine,
Sine,
= 3.6, 5V
= 1V
RMS
= 3.6, 5V
I
I
I
= 2μF
= 2μF
= 2μF
PP
Sine
(Note 6)
Typical
1.24
0.03
0.02
0.02
870
350
650
300
140
1.7
78
72
97
30
23
70
17
88
86
LM4673
(Notes 7, 8)
Limit
600
www.national.com
(Limits)
μV
μV
Units
mW
mW
mW
mW
dB
dB
dB
dB
μs
μs
W
W
%
%
%
%
%
RMS
RMS