max97002 Maxim Integrated Products, Inc., max97002 Datasheet - Page 16
max97002
Manufacturer Part Number
max97002
Description
Audio Subsystem With Mono Class D Speaker And Class H Headphone Amplifiers
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX97002.pdf
(36 pages)
- Current page: 16 of 36
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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifiers
16
(V
loads (ZSPK) connected between OUTP and OUTN. Headphone loads (RHP) connected from HPL or HPR to GND. ZSPK = ∞, RHP = ∞.
C
C1P-C1N
LDOIN
SOFTWARE STARTUP RESPONSE
= V
= C
PVDD
2ms/div
HPVDD
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
= 3.7V, V
0
I
NC
= C
= 20mA
1
ON-RESISTANCE vs. V
HPVSS
MAX97002 toc40
GND
V
PVDD
2
= V
= 5.0V
V
V
V
= C
COM
PVDD
PVDD
V
PVDD
3
PGND
SDA
2V/div
HPL/HPR
200mV/div
(V)
BIAS
= 2.7V
= 2.5V
= 3.0V
V
PVDD
4
= 0V. Single-ended inputs, preamp gain = 0dB,
V
=
PVDD
COM
0V
0V
= 3.7V
1μF. T
= 5.5V
5
Typical Operating Characteristics (continued)
A
6
= +25°C, unless otherwise noted.)
CLASS H OPERATION
10ms/div
MAX97002 toc41
HPVDD
1V/div
HPL/HPR
200mV/div
HPVSS
1V/div
-100
-120
-20
-40
-60
-80
0
0.01
HPLVOL = HPRVOL = SPKVOL =
BYPASS SWITCH OFF-ISOLATION
0.001
0.01
0.1
10
0.1
1
0
FREQUENCY (kHz)
R
EXTERNAL CLASS AB
CONNECTED DIRECTLY
TO COM1 AND COMR
LOAD
10
f = 6kHz
THD+N vs. OUTPUT POWER
f = 1kHz
1
= 8I
20
OUTPUT POWER (mW)
f = 100Hz
30
10
40
50
100
0dB. Speaker
60
70
80
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