MAX9775(2008) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX9775
(Rev.:2008)
(Rev.:2008)
Maxim Integrated
MAX9775 Datasheet PDF : 38 Pages
| |||
2 x 1.5W, Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
Typical Operating Characteristics (continued)
(VDD = PVDD = CPVDD = 3.3V, GND = PGND = CPGND = 0V, SHDN = VDD, I2C default gain settings (INA gain = +20dB, INB gain =
INC gain = 0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (RLSP) are terminated
between OUT_+ and OUT_-, headphone load resistors are terminated to GND, unless otherwise stated. C1 = C2 = C3 = 1µF. TA =
+25°C, unless otherwise noted.)
MAX9776 SUPPLY CURRENT
vs. SUPPLY VOLTAGE
16
SP MODE
INPUTS AC GROUNDED
14 OUTPUTS UNLOADED
12
10
8
6
4
2.7 3.2 3.7 4.2 4.7 5.2
SUPPLY VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
2.7
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
3.2 3.7 4.2 4.7 5.2
SUPPLY VOLTAGE (V)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
1
VDD = 5V
RL = 32Ω
0.1
POUT = 20mW
0.01
POUT = 40mW
0.001
10
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
1
VDD = 3.3V
RL = 16Ω
0.1
POUT = 40mW
0.01
POUT = 20mW
0.001
10
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
1
VDD = 3.3V
RL = 32Ω
0.1
POUT = 40mW
0.01
POUT = 10mW
0.001
10
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 5V
RL = 32Ω
10
f = 1kHz
1
f = 10kHz
0.1
0.01
f = 20Hz
0.001
0
20
40
60
80
OUTPUT POWER (mW)
______________________________________________________________________________________ 11
Share Link: