MAX9879(2009) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX9879
(Rev.:2009)
(Rev.:2009)
Maxim Integrated
MAX9879 Datasheet PDF : 31 Pages
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Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
Typical Operating Characteristics
(VDD = VPVDDL = VPVDDR = 3.7V, VCCIO = 1.8V, VGND = VPGNDL = VPGNDR = 0. Single-ended inputs, preamp = 0dB, volume con-
trols = 0dB, BYPASS = 0, SHDN = 1. Speaker loads connected between OUT_+ and OUT_-. Headphone loads connected from HPL
or HPR to GND. RSPK = ∞, RHP = ∞. C1 = C2 = CBIAS = 1µF. TA = +25°C, unless otherwise noted.)
GENERAL
SUPPLY CURRENT vs. SUPPLY VOLTAGE
10
HEADPHONE MODE
8
6
4
2
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
16
STEREO-SPEAKER MODE
14
12
10
8
6
4
2
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
20
HEADPHONE + STEREO-SPEAKER MODE
18
16
14
12
10
8
6
4
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
16
SOFTWARE-SHUTDOWN MODE
14
12
10
8
6
4
2
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
50
HARDWARE-SHUTDOWN MODE
40
30
20
10
0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
SUPPLY VOLTAGE (V)
VOLUME LEVEL vs. VOLUME STEP
100
90
fIN = 1kHz
80
70
60
50
40
30
20
10
0
0 4 8 12 16 20 24 28 32
VOLUME STEP
8 _______________________________________________________________________________________
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