MAX9723(2005) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX9723
(Rev.:2005)
(Rev.:2005)
Maxim Integrated
MAX9723 Datasheet PDF : 23 Pages
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Stereo DirectDrive Headphone Amplifier with
BassMax, Volume Control, and I2C
Typical Operating Characteristics (continued)
(VDD = SHDN = 3V, PGND = SGND = 0V, C1 = C2 = 1µF, BB_ = 0V, gain = 0dB, maximum volume, BassMax disabled. Load con-
nected between OUT_ and SGND where specified. Outputs in phase, both channels loaded. TA = +25°C, unless otherwise noted.)
(See Functional Diagram/Typical Operating Circuit)
POWER DISSIPATION
vs. OUTPUT POWER
300
VDD = 3V
fIN = 1kHz
250 POUT = POUTL + POUTR
OUTPUTS IN PHASE
RL = 16Ω
200
RL = 32Ω
150
OUTPUT POWER
vs. LOAD RESISTANCE
80
VDD = 2.4V
70 fIN = 1kHz
60
50
THD+N = 10%
40
30
100
THD+N = 1%
20
50
10
0
0 20 40 60 80 100 120
OUTPUT POWER (mW)
OUTPUT POWER
vs. LOAD RESISTANCE
100
90
VDD = 3V
fIN = 1kHz
80
70
THD+N = 10%
60
50
40 THD+N = 1%
30
20
10
0
10
100
1k
LOAD RESISTANCE (Ω)
0
10
100
1k
LOAD RESISTANCE (Ω)
OUTPUT POWER
vs. SUPPLY VOLTAGE
100
90
80
THD+N = 10%
70
60
50
40
THD+N = 1%
30
20
10
fIN = 1kHz
RL = 16Ω
0
1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
SUPPLY VOLTAGE (V)
OUTPUT POWER
vs. SUPPLY VOLTAGE
140
120
100
80
THD+N = 10%
60
40
THD+N = 1%
20
fIN = 1kHz
RL = 32Ω
0
1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
SUPPLY VOLTAGE (V)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
RL = 32Ω
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
10
100
1k
10k
100k
FREQUENCY (Hz)
6 _______________________________________________________________________________________
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