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MAX97000 Datasheet(PDF) 12 Page - Maxim Integrated Products

Part No. MAX97000
Description  Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX97000 Datasheet(HTML) 12 Page - Maxim Integrated Products

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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
12
Typical Operating Characteristics (continued)
(VLDOIN = VPVDD = 3.7V, VGND = VPGND = 0V. Single-ended inputs, preamp gain = 0dB, HPLVOL = HPRVOL = SPKVOL = 0dB. Speaker
loads (ZSPK) connected between OUTP and OUTN. Headphone loads (RHP) connected from HPL or HPR to GND. ZSPK = ∞, RHP = ∞.
CC1P-C1N = CHPVDD = CHPVSS = CBIAS = 1μF. TA = +25°C, unless otherwise noted.)
EFFICIENCY vs. OUTPUT POWER
2.5
2.0
1.5
1.0
0.5
10
20
30
40
50
60
70
80
90
100
0
0
3.0
POUT (W)
ZSPRK = 8I + 68µF
ZSPRK = 4I + 33µF
VPVDD = 5.0V
fIN = 1kHz
EFFICIENCY vs. OUTPUT POWER
1.4
1.2
0.8 1.0
0.4 0.6
0.2
0
1.6
10
20
30
40
50
60
70
80
90
100
0
POUT (W)
ZSPRK = 8I + 68µF
ZSPRK = 4I + 33µF
VPVDD = 3.7V
fIN = 1kHz
OUTPUT POWER vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
5.0
4.5
3.0
3.5
4.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
2.5
5.5
fIN = 1kHz
ZSPRK = 4I + 33µF
THD+N = 1%
THD+N = 10%
OUTPUT POWER vs. SUPPLY VOLTAGE
5.0
4.5
4.0
3.5
3.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
2.5
5.5
SUPPLY VOLTAGE (V)
fIN = 1kHz
ZSPRK = 8I + 68µF
THD+N = 1%
THD+N = 10%
OUTPUT POWER vs. LOAD RESISTANCE
LOAD RESISTANCE (I)
100
10
1
1000
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
THD+N = 1%
THD+N = 10%
VPVDD = 3.7V
fIN = 1kHz
ZSPRK = LOAD + 68µF
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
FREQUENCY (kHz)
10
1
0.1
-80
-60
-40
-20
0
-100
0.01
100
VPVDD = 3.7V
VRIPPLE = 200mVP-P
INPUTS AC-COUPLED GND
POWER-SUPPLY REJECTION RATIO
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
5.0
4.5
4.0
3.5
3.0
-80
-60
-40
-20
0
-100
2.5
5.5
VRIPPLE = 200mVP-P
fIN = 1kHz
INPUTS AC-COUPLED GND
IN-BAND OUTPUT SPECTRUM
FREQUENCY (kHz)
15
10
5
-100
-80
-60
-40
-20
0
-120
0
20
SSM
fIN = 1kHz
IN-BAND OUTPUT SPECTRUM
FREQUENCY (kHz)
15
10
5
-100
-80
-60
-40
-20
0
-120
0
20
FFM
fIN = 1kHz


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