MP1740 –3W HIGH EFFCIENCY MONO CLASS-D AUDIO AMPLIFIER
MPS CONFIDENTIAL AND PROPRIETARY INFORMATION – INTERNAL USE ONLY
OPERATION CHARACTERISTICS
VCC=AVCC=PVCC=EN, AGND = PGND = 0V, signal frequency fs=1kHz, R
I
=150
Ω
, Gain=2 V/V,
C
I
=2.2uF, T
A
= +25°C, unless otherwise noted.
Parameter
Symbol
Conditions
THD+N=1%,
f
S
=1kHz,
R
L
=4Ω
THD+N=10%,
f
S
=1kHz,
R
L
=4Ω
Output Power
P
OUT
THD+N=1%,
f
S
=1kHz,
R
L
=8Ω
VCC=5.5V
VCC=5V
VCC=3.6V
VCC=2.5V
VCC=5.5V
VCC=5V
VCC=3.6V
VCC=2.5V
VCC=5.5V
VCC=5V
VCC=3.6V
VCC=2.5V
VCC=5.5V
VCC=5V
VCC=3.6V
VCC=2.5V
VCC=5V
VCC=3.6V
VCC=2.5V
VCC=5V
VCC=3.6V
VCC=2.5V
VCC=5V
Min
THD+N=10%,
f
S
=1kHz,
R
L
=8Ω
Total Distorsion Plus
Noise
THD+N
Supply
Ripple
Rejection Ratio
Signal to Noise Ratio
Output Noise
M
S
P
C
K
SVR
SNR
V
n
N
O
Common
Mode
Rejection Ratio
Start-up Time From
Disable
CMRR
T
S
D
O
N
P
OUT
=2W, f
S
=1kHz,
R
L
=4Ω
P
OUT
=1W, f
S
=1kHz,
R
L
=4Ω
P
OUT
=0.4W, f
S
=1kHz,
R
L
=4Ω
P
OUT
=1W, f
S
=1kHz,
R
L
=8Ω
P
OUT
=0.5W, f
S
=1kHz,
R
L
=8Ω
P
OUT
=0.2W, f
S
=1kHz,
R
L
=8Ω
f
RIPPLE
=217Hz,
V
RIPPLE
=400mVpp,
input AC-ground with
C
I
=0.22μF
P
OUT
=1W,
R
L
=8Ω
VCC=5V, f=20 to
20kHz, input AC-
ground
with
C
I
=0.22μF
V
IC-RIPPLE
=1 V
PP
,
f
RIPPLE
=217Hz
F
D
I
E
N
T
A
I
Typ
2.82
2.32
1.16
0.54
3.62
3.0
1.51
0.70
1.65
1.36
0.71
0.33
2.12
1.74
0.91
0.42
L
Max
Unit
W
0.19%
0.14%
T
O
D
S
I
T
R
0.11%
0.11%
U
B
I
T
E
0.12%
0.13%
-62
97.7
53
μV
RMS
37
-65
1
dB
ms
dB
dB
No
weighting
A-weighting
VCC=5V
MP1740MP1740 Rev. 1.0
1/5/2012
4
MPS [ MONOLITHIC POWER SYSTEMS ]
