Typical operating characteristics – Rainbow Electronics MAX98302 User Manual
Page 4
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MAX98302
Stereo 2.4W Class D Amplifier
Typical Operating Characteristics
(V
PVDD
= V
SHDN
= 5.0V, V
PGND
= 0V, AV = 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.)
THD+N vs. FREQUENCY
MAX98302 toc01
FREQUENCY (kHz)
THD+N (%)
10
1
0.1
0.1
1
10
0.01
0.01
100
R
L
= 4I + 33µH
V
PVDD
= 5.0V
P
OUT
= 500mW
P
OUT
= 400mW
THD+N vs. FREQUENCY
MAX98302 toc02
FREQUENCY (kHz)
THD+N (%)
10
1
0.1
0.1
1
10
0.01
0.01
100
R
L
= 4I + 33µH
V
PVDD
= 3.7V
P
OUT
= 500mW
P
OUT
= 400mW
THD+N vs. FREQUENCY
MAX98302 toc03
FREQUENCY (kHz)
THD+N (%)
10
1
0.1
0.1
1
10
0.01
0.01
100
R
L
= 8I + 68µH
V
PVDD
= 5.0V
P
OUT
= 600mW
P
OUT
= 800mW
THD+N vs. FREQUENCY
MAX98302 toc04
FREQUENCY (kHz)
THD+N (%)
10
1
0.1
0.1
1
10
0.01
0.01
100
R
L
= 8I + 68µH
V
PVDD
= 3.7V
P
OUT
= 100mW
P
OUT
= 350mW
THD+N vs. OUTPUT POWER
MAX98302 toc05
OUTPUT POWER (W)
THD+N (%)
2.5
2.0
1.5
1.0
0.5
0.1
1
10
100
0.01
0
3.0
R
L
= 4I + 33µH
V
PVDD
= 5.0V
f
IN
= 6kHz
f
IN
= 1kHz
f
IN
= 100Hz
THD+N vs. OUTPUT POWER
MAX98302 toc06
OUTPUT POWER (W)
THD+N (%)
1.50
1.25
1.00
0.75
0.50
0.25
0.1
1
10
100
0.01
0
R
L
= 4I + 33µH
V
PVDD
= 3.7V
f
IN
= 6kHz
f
IN
= 1kHz
f
IN
= 100Hz
THD+N vs. OUTPUT POWER
MAX98302 toc07
OUTPUT POWER (W)
THD+N (%)
1.5
1.0
0.5
0.1
1
10
100
0.01
0
2.0
R
L
= 8I + 68µH
V
PVDD
= 5.0V
f
IN
= 6kHz
f
IN
= 1kHz
f
IN
= 100Hz
THD+N vs. OUTPUT POWER
MAX98302 toc08
OUTPUT POWER (W)
THD+N (%)
1.00
0.75
0.50
0.25
0.1
1
10
100
0.01
0
R
L
= 8I + 68µH
V
PVDD
= 3.7V
f
IN
= 6kHz
f
IN
= 1kHz
f
IN
= 100Hz
EFFICIENCY vs. OUTPUT POWER
MAX98302 toc09
OUTPUT POWER PER CHANNEL (W)
EFFICIENCY (%)
2.00
1.50
0.50
1.00
10
20
30
40
50
60
70
80
90
100
0
0
2.50
V
PVDD
= 5.0V
R
L
= 8I + 68µH
R
L
= 4I + 33µH