User guide

6 ______________________________________________________________________________________
MAX98302
Stereo 2.4W Class D Amplifier
Typical Operating Characteristics (continued)
(V
PVDD
= V
SHDN
= 5.0V, V
PGND
= 0V, A
V
= 12dB, R
L
= J, unless otherwise specified, R
L
connected between OUT_+ to OUT_-, 20Hz
to 22kHz AC measurement bandwidth, T
A
= +25NC, unless otherwise noted.)
MAX98302 toc19
MAX98302
OUTPUT
SHDN
1ms/div
EXITING SHUTDOWN
MAX98302 toc20
MAX98302
OUTPUT
SHDN
1ms/div
ENTERING SHUTDOWN
1010.10.010.001 100
WIDEBAND OUTPUT SPECTRUM
MAX98302 toc21
FREQUENCY (MHz)
OUTPUT MAGNITUDE (dBV)
-80
-60
-40
-20
0
-100
RBW = 100Hz
R
L
= 8I + 68µH
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX98302 toc24
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
5.04.54.03.53.0
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0
2.5 5.5
R
L
= ∞
INBAND OUTPUT SPECTRUM
MAX98302 toc22
FREQUENCY (Hz)
OUTPUT MAGNITUDE (dBV)
10,0001000100
-120
-100
-80
-60
-40
-20
0
-140
10 100,000
f = 1kHz
R
L
= 8I + 68µH
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX98302 toc23
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.04.54.03.53.0
0.5
1.0
1.5
2.0
2.5
3.0
0
2.5 5.5
R
L
= ∞