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MAX97000 Datasheet(PDF) 14 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) 14 Page - Maxim Integrated Products

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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
14
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.)
HEADPHONE AMPLIFIER
THD+N vs. FREQUENCY
FREQUENCY (kHz)
10
1
0.1
0.01
0.1
1
10
0.001
0.01
100
POUT = 25mW
POUT = 5mW
RLOAD = 32I
THD+N vs. FREQUENCY
FREQUENCY (kHz)
10
1
0.1
0.01
0.1
1
10
0.001
0.01
100
POUT = 30mW
POUT = 10mW
RLOAD = 16I
THD+N vs. OUTPUT POWER
OUTPUT POWER (mW)
50
40
30
20
10
0.01
0.1
1
10
0.001
0
60
fIN = 1kHz
fIN = 6kHz
fIN = 100Hz
RLOAD = 32I
THD+N vs. OUTPUT POWER
OUTPUT POWER (mW)
70
60
50
40
30
20
10
0.01
0.1
1
10
0.001
0
80
RLOAD = 16I
fIN = 6kHz
fIN = 1kHz
fIN = 100Hz
POWER DISSIPATION
vs. OUTPUT POWER
OUTPUT POWER (mW)
80
70
50 60
20 30 40
10
20
40
60
80
100
120
140
160
180
0
0
90
fIN = 1kHz
POUT = PHPL + PHPR
RLOAD = 16I
RLOAD = 32I
OUTPUT POWER vs. LOAD RESISTANCE
LOAD RESISTANCE (I)
100
10
10
20
30
40
50
60
70
80
0
1
1000
THD+N = 10%
THD+N = 1%
fIN = 1kHz
OUTPUT POWER vs. LOAD RESISTANCE
LOAD RESISTANCE (I)
100
10
10
20
30
40
50
60
70
0
1
1000
fIN = 1kHz
THD+N = 1%
CCHARGE_PUMP = 2.2µF
CCHARGE_PUMP = 1µF
CCHARGE_PUMP = 0.47µF
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
FREQUENCY (kHz)
10
1
0.1
-80
-60
-40
-20
0
-100
0.01
100
VRIPPLE = 200mVP-P
INPUTS AC-COUPLED GND
OUTPUT SPECTRUM
FREQUENCY (kHz)
20
16
4
8
12
-140
-120
-100
-80
-60
-40
-20
0
-160
0
24
RLOAD = 32I
fIN = 1kHz


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