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MAX97000 Datasheet(PDF) 16 Page - Maxim Integrated Products

Part No. MAX97000
Description  Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier
Download  33 Pages
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX97000 Datasheet(HTML) 16 Page - Maxim Integrated Products

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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
16
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.)
ANALOG SWITCH
CLASS H OPERATION
MAX97000 toc43
HPVDD
1V/div
HPL/HPR
200mV/div
HPVSS
1V/div
10ms/div
HPVDD
0V
HPVSS
0V
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
OUTPUT POWER (mW)
25
20
15
10
5
0.01
0.1
1
10
0.001
0
30
RLOAD = 32I
EXTERNAL CLASS AB CONNECTED
DIRECTLY TO COM1 AND COMR
f = 6kHz
f = 100kHz
f = 100kHz
BYPASS SWITCH OFF-ISOLATION
FREQUENCY (kHz)
10
1
0.1
-120
-100
-80
-60
-40
-20
0
-140
0.01
100
ON-RESISTANCE vs. VCOM
VCOM (V)
5
4
3
2
1
0.5
1.0
1.5
2.0
2.5
3.0
0
0
6
INC = 20mA
VPVDD = 2.7V
VPVDD = 3.7V
VPVDD = 3.0V
VPVDD = 5.0V


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