MAX98302 데이터 시트보기 (PDF) - Maxim Integrated
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MAX98302 Datasheet PDF : 13 Pages
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Stereo 2.4W Class D Amplifier
Typical Operating Characteristics (continued)
(VPVDD = VSHDN = 5.0V, VPGND = 0V, AV = 12dB, RL = J, unless otherwise specified, RL connected between OUT_+ to OUT_-, 20Hz
to 22kHz AC measurement bandwidth, TA = +25NC, unless otherwise noted.)
EFFICIENCY vs. OUTPUT POWER
100
VPVDD = 3.7V
90
80
70
60
RL = 8I + 68µH
50
RL = 4I + 33µH
40
30
20
10
0
0 0.25 0.50 0.75 1.00 1.25 1.50
OUTPUT POWER (W)
OUTPUT POWER vs. SUPPLY VOLTAGE
3.5
RL = 4I + 68µH
3.0
2.5
10% THD+N
2.0
1.5
1.0
1% THD+N
0.5
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
CROSSTALK vs. FREQUENCY
0
INPUT REFERRED
-20
RL = 8I + 68µH
POUT = 300mW
-40
-60
LEFT TO RIGHT
-80
-100
RIGHT TO LEFT
-120
0.01
0.1
1
10
100
FREQUENCY (kHz)
OUTPUT POWER vs. LOAD RESISTANCE
3.0
VPVDD = 5V
2.5
10% THD+N
2.0
1.5
1% THD+N
1.0
0.5
0
1
10
100
1000
LOAD RESISTANCE (I)
OUTPUT POWER vs. SUPPLY VOLTAGE
2.5
RL = 8I + 68µH
2.0
10% THD+N
1.5
1.0
0.5
1% THD+N
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
0
INPUT REFERRED
-10 RL = 8I + 68µH
-20 POUT = 300mW
-30
-40
-50
-60
-70
-80
-90
0.01
0.1
1
10
100
FREQUENCY (kHz)
OUTPUT POWER vs. LOAD RESISTANCE
1.6
VPVDD = 3.7V
1.4
1.2
1.0
10% THD+N
0.8
0.6
1% THD+N
0.4
0.2
0
1
10
100
1000
LOAD RESISTANCE (I)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
VRIPPLE = 200mVP-P
-10 VPVDD = 5.0V
-20
-30
-40
-50
-60
-70
-80
0.01
0.1
1
10
100
FREQUENCY (kHz)
GAIN vs. FREQUENCY
24
22
20
AV = 18dB
18
16
AV = 15dB
14
AV = 12dB
12
10
AV = 9dB
8
AV = 6dB
6
4
2
0
0.01
0.1
1
10
100
FREQUENCY (kHz)
_______________________________________________________________________________________ 5
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