Rainbow Electronics MAX98302 - Manual (Page 5)

_______________________________________________________________________________________ 5
MAX98302
Stereo 2.4W Class D Amplifier
Typical Operating Characteristics (continued)
(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.)
EFFICIENCY vs. OUTPUT POWER
MAX98302 toc10
OUTPUT POWER (W)
EFFICIENCY (%)
1.25 1.00 0.75 0.50 0.25
10
20
30
40
50
60
70
80
90
100
0
0 1.50
V PVDD = 3.7V
R L = 8I + 68µH
R L = 4I + 33µH
OUTPUT POWER vs. LOAD RESISTANCE
MAX98302 toc11
LOAD RESISTANCE (I)
OUTPUT POWER PER CHANNEL (W)
100 10
0.5
1.0
1.5
2.0
2.5
3.0
0
1 1000
V PVDD = 5V
10% THD+N
1% THD+N
OUTPUT POWER vs. LOAD RESISTANCE
MAX98302 toc12
LOAD RESISTANCE (I)
OUTPUT POWER (W)
100 10
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
1 1000
V PVDD = 3.7V
1% THD+N
10% THD+N
OUTPUT POWER vs. SUPPLY VOLTAGE
MAX98302 toc13
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
5.0 4.5 4.0 3.5 3.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
2.5 5.5
R
L
= 4I + 68µH
1% THD+N
10% THD+N
OUTPUT POWER vs. SUPPLY VOLTAGE
MAX98302 toc14
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
5.0 4.5 4.0 3.5 3.0
0.5
1.0
1.5
2.0
2.5
0
2.5 5.5
R
L
= 8I + 68µH
1% THD+N
10% THD+N
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX98302 toc15
FREQUENCY (kHz)
PSRR (dB)
10 1 0.1
-70
-60
-50
-40
-30
-20
-10
0
-80
0.01 100
V RIPPLE = 200mV P-P
V PVDD = 5.0V
CROSSTALK vs. FREQUENCY
MAX98302 toc16
FREQUENCY (kHz)
CROSSTALK (dB)
10 1 0.1
-100
-80
-60
-40
-20
0
-120
0.01 100
INPUT REFERRED
R
L
= 8I + 68µH
P OUT = 300mW
LEFT TO RIGHT
RIGHT TO LEFT
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
MAX98302 toc17
FREQUENCY (kHz)
CMRR (dB)
10 1 0.1
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
0.01 100
INPUT REFERRED
R
L = 8I + 68µH
P OUT = 300mW
GAIN vs. FREQUENCY
MAX98302 toc18
FREQUENCY (kHz)
AMPLITUDE (dB)
10 1 0.1
2
4
6
8
10
12
14
16
18
20
22
24
0
0.01 100
A V = 18dB
A V = 15dB
A V = 9dB
A V = 12dB
A V = 6dB