5
Maxim Integrated
Mono 2.6W Class D Amplifier
MAX98300
Typical Operating Characteristics (continued)
(VPVDD = VSHDN = 5.0V, VPGND = 0V, AV = 12dB, RL = J, unless otherwise specified, RL connected between OUT+ to OUT-, AC
measurement bandwidth 20Hz to 22kHz, TA = +25NC, unless otherwise noted.)
1.2
1.0
0.6
0.8
0.4
0.2
0
1.4
EFFICIENCY vs. OUTPUT POWER
MAX98300
toc10
OUTPUT POWER (W)
EFFICIENCY
(%)
10
20
30
40
50
60
70
80
90
100
0
VPVDD = 3.7V
RL = 8I + 68FH
RL = 4I + 33FH
5.0
4.0
4.5
3.5
3.0
2.5
5.5
OUTPUT POWER vs. SUPPLY VOLTAGE
MAX98300
toc13
SUPPLY VOLTAGE (V)
OUTPUT
POWER
(W)
0.25
1.00
1.50
0.50
0.75
1.25
1.75
2.00
2.25
2.50
2.75
3.00
0
RL = 4I + 33FH
10% THD+N
1% THD+N
COMMON-MODE REJECTION RATION vs.
FREQUENCY
MAX98300
toc16
FREQUENCY (kHz)
CMRR
(dB)
10
1
0.1
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0.01
100
INPUT REFERRED
OUTPUT POWER vs.
LOAD RESISTANCE
MAX98300
toc11
LOAD RESITANCE (I)
OUTPUT
POWER
(W)
100
1.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
1
1000
PVDD = 5V
10% THD+N
1% THD+N
5.0
4.0
4.5
3.5
3.0
2.5
5.5
OUTPUT POWER vs. SUPPLY VOLTAGE
MAX98300
toc14
SUPPLY VOLTAGE (V)
OUTPUT
POWER
(W)
0.25
1.00
1.50
0.50
0.75
1.25
1.75
2.00
2.25
2.50
2.75
3.00
0
RL = 8I + 68FH
10% THD+N
1% THD+N
OUTPUT POWER vs.
LOAD RESISTANCE
MAX98300
toc12
LOAD RESITANCE (I)
OUTPUT
POWER
(W)
100
1.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
1
1000
PVDD = 3.7V
10% THD+N
1% THD+N
POWER-SUPPLY REJECTION RATIO vs.
FREQUENCY
MAX98300
toc15
FREQUENCY (kHz)
PSRR
(dB)
10
1
0.1
-70
-60
-50
-40
-30
-20
-10
0
-80
0.01
100
VRIPPLE = 200mVP-P
VPVDD = 5.0V
GAIN vs. FREQUENCY
MAX98300
toc17
FREQUENCY (kHz)
AMPLITUDE
(dB)
10
1
0.1
0
5
10
15
20
-5
0.01
100
AV = 12dB
AV = 9dB
AV = 6dB
AV = 3dB
AV = 0dB