LM4670SD National Semiconductor, LM4670SD Datasheet - Page 4

• Manufacturer Part Number: LM4670SD
• Description: IC,Audio Amplifier,SINGLE,LLCC,8PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM4670SD

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 3x1@4OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.35@8Ohm@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: 68dB
• 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: 8
• Package Type: LLP EP
• Amplifier Class: AB
• No. Of Channels: 1
• Output Power: 3W
• Supply Voltage Range: 2.4V To 5.5V
• Thd + N: 0.35% @ 1W, VDD=5V
• Load Impedance: 4ohm
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Not Compliant

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P
THD+N
PSRR
SNR
e
CMRR
T
T
Symbol
OUT
WU
SD
O
Electrical Characteristics
The following specifications apply for A
apply for T
Output Power (Note 11)
Total Harmonic Distortion + Noise
Power Supply Rejection Ratio
Signal to Noise Ratio
Output Noise
Common Mode Rejection Ratio
Wake-up Time
Shutdown Time
A
= 25˚C. (Continued)
Parameter
V
= 2V/V (R
(Notes 1, 2)
R
THD = 10% (max)
f = 1kHz, 22kHz BW
V
V
V
R
THD+N = 1% (max)
f = 1kHz, 22kHz BW
V
V
V
V
f = 1kHz
V
f = 1kHz
V
f = 5kHz
V
f = 10kHz
V
V
f
Inputs to AC GND, C
Input Referred
V
V
f
Inputs to AC GND, C
Input Referred
V
V
f
f
Input Referred
V
V
Inputs to AC GND, C
No Weighting, Input Referred
V
C
Input Referred
V
f
V
V
Ripple
Ripple
Ripple
IN
Ripple
L
DD
DD
DD
L
DD
DD
DD
DD
DD
DD
DD
DD
Ripple
DD
Ripple
DD
Ripple
DD
DD
DD
I
DD
DD
DD
= 0.1µF, A Weighted
= 1kHz, P
= 15µH + 8Ω + 15µH,
= 15µH + 8Ω + 15µH,
I
= 5V
= 3.6V
= 2.5V
= 5V,
= 3.6V,
= 2.5V,
= 5V, P
= 3.6V, P
= 3.6V, P
= 3.6V, P
= 3.6V,
= 3.6V,
= 3.6V,
= 5V, P
= 3.6V, f = 20Hz – 20kHz
= 3.6V, Inputs to AC GND
= 3.6V, V
= 3.6V
= 3.6V
= 150kΩ), R
= 217Hz
= 1kHz
= 217Hz
= 217Hz, Input Referred
= 200mV
= 200mV
= 200mV
Conditions
O
O
O
O
O
O
Ripple
= 1W
= 1W
= 10mW
4
= 0.5W
= 0.5W
= 0.5W
PP
PP
PP
L
= 15µH + 8Ω + 15µH unless otherwise specified. Limits
Sine,
Sine,
Sine,
RMS
RMS
= 1V
I
I
I
= 0.1µ,
= 0.1µF
= 0.1µF
RMS
RMS
RMS
,
RMS
PP
,
,
,
Sine
(Note 6)
Typical
1.65
1.35
0.35
0.30
0.30
0.30
1.35
0.01
850
400
680
325
68
65
62
93
85
65
80
LM4670
(Notes 7, 8)
Limit
600
mW (min)
(Limits)
µV
µV
Units
mW
mW
mW
ms
ms
dB
dB
dB
dB
dB
W
W
%
%
%
%
RMS
RMS