LM4675SD NSC [National Semiconductor], LM4675SD Datasheet - Page 5

• Manufacturer Part Number: LM4675SD
• Description: Ultra-Low EMI, Filterless, 2.65W, Mono, Class D Audio Power Amplifier with Spread Spectrum
• Manufacturer: NSC [National Semiconductor]

P
THD+N
PSRR
SNR
e
CMRR
T
T
η
Symbol
OUT
WU
SD
O
Electrical Characteristics
The following specifications apply for A
apply for T
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
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 = 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
L
DD
DD
DD
L
DD
DD
DD
DD
DD
DD
Ripple
Ripple
DD
DD
DD
I
DD
DD
DD
L
DD
L
= 2µF, A Weighted
= 15µH + 8Ω + 15µH
= 15µH + 8Ω + 15µH
= 8Ω
= 8Ω
I
= 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
= 150kΩ), R
= 217Hz, V
= 1kHz, V
= 217Hz
= 200mV
= 200mV
Conditions
O
O
OUT
O
O
Ripple
OUT
= 0.1W, f = 1kHz
= 1W
= 0.1W, f = 1kHz
= 0.1W, f = 1kHz
5
PP
PP
DD
= 1W
L
DD
= 400mW
= 15µH + 8Ω + 15µH unless otherwise specified. Limits
Sine,
Sine,
= 3.6, 5V
RMS
= 1V
= 3.6, 5V
I
I
I
= 2µF
= 2µF
= 2µF
PP
Sine
(Note 6)
Typical
0.03
0.02
0.04
820
350
650
290
140
1.6
1.3
82
80
97
28
22
80
17
89
89
LM4675
(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