MAX98304 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX98304 Datasheet PDF : 12 Pages
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MAX98304
Mono 3.2W Class D Amplifier
Typical Operating Characteristics (continued)
(VPVDD = VSHDN = 5.0V, VPGND = 0V, AV = 6dB, RL = J, RL connected between OUT+ to OUT-, AC measurement bandwidth 20Hz
to 22kHz, TA = +25NC, unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
VPVDD = 5V
ZLOAD = 8I + 68µH
10
1
f = 6000Hz
0.1
f = 1000Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
VPVDD = 4.2V
ZLOAD = 8I + 68µH
10
1
f = 6000Hz
0.1
f = 1000Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
VPVDD = 3.7V
ZLOAD = 8I + 68µH
10
1
f = 6000Hz
f = 1000Hz
0.1
0.01
0.001
0
f = 100Hz
0.5
1.0
1.5
OUTPUT POWER (W)
0.01
0.01
0.001
f = 100Hz
0.001
f = 100Hz
2.0
0
0.3 0.6 0.9 1.2 1.5
0 0.2 0.4 0.6 0.8 1.0 1.2
OUTPUT POWER (W)
OUTPUT POWER (W)
OUTPUT POWER vs. LOAD RESISTANCE
4.5
VPVDD = 5.0V
4.0
3.5
3.0
2.5
THD+N = 10%
2.0
1.5
1.0
0.5
THD+N = 1%
0
1
10
100
1000
RLOAD (I)
OUTPUT POWER vs. LOAD RESISTANCE
2.5
VPVDD = 3.7V
2.0
1.5
1.0
THD+N = 10%
0.5 THD+N = 1%
0
1
10
100
1000
RLOAD (I)
OUTPUT POWER vs. SUPPLY VOLTAGE
4.5
f = 1kHz
4.0 ZLOAD = 4I + 33µH
3.5
3.0
THD+N = 10%
2.5
2.0
1.5
THD+N = 1%
1.0
0.5
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
OUTPUT POWER vs. SUPPLY VOLTAGE
2.5
f = 1kHz
ZLOAD = 8I + 68µH
2.0
1.5
THD+N = 10%
1.0
THD+N = 1%
0.5
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
Maxim Integrated
GAIN vs. FREQUENCY
20 GAIN = PGND GAIN = 100kI TO PGND
10
0
GAIN = PVDD
-10
GAIN = 100kI TO PVDD
GAIN = UNCONNECTED
-20
-30
-40
10
100
1k
10k
100k
FREQUENCY (Hz)
EFFICIENCY vs. OUTPUT POWER
100
VPVDD = 5.0V
90
80
70
ZLOAD = 8I + 68µH
60
ZLOAD = 4I + 33µH
50
40
30
20
10
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
OUTPUT POWER (W)
5
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