MAX9723(2005) 查看數據表（PDF） - Maxim Integrated
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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
(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)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
1
VDD = 2.4V
RL = 16Ω
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
1
VDD = 2.4V
RL = 32Ω
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
1
VDD = 3V
RL = 16Ω
0.1
POUT = 10mW
0.01
0.1
0.1
POUT = 10mW
POUT = 20mW
0.01
0.01
POUT = 25mW
0.001
10
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
1
VDD = 3V
RL = 32Ω
0.1
POUT = 10mW
0.01
0.001
10
POUT = 30mW
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
VDD = 3V
RL = 16Ω
10
1
fIN = 1kHz
0.1
fIN = 20Hz
0.01
fIN = 10kHz
0.001
0
20
40
60
80 100
OUTPUT POWER (mW)
0.001
10
POUT = 23mW
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
VDD = 2.4V
RL = 16Ω
10
1
0.1
fIN = 20Hz fIN = 1kHz
0.01
fIN = 10kHz
0.001
0
20
40
60
OUTPUT POWER (mW)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
VDD = 3V
RL = 32Ω
10
1
0.1
fIN = 1kHz
fIN = 20Hz
0.01
fIN = 10kHz
0.001
0
20
40
60
80
100
OUTPUT POWER (mW)
POUT = 37mW
0.001
10
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
VDD = 2.4V
RL = 32Ω
10
1
0.1
fIN = 1kHz
fIN = 20Hz
0.01
fIN = 10kHz
0.001
0
20
40
60
OUTPUT POWER (mW)
POWER DISSIPATION
vs. OUTPUT POWER
180
VDD = 2.4V
160 fIN = 1kHz
140
POUT = POUTL + POUTR
OUTPUTS IN PHASE
RL = 16Ω
120
100
RL = 32Ω
80
60
40
20
0
0
20
40
60
80
OUTPUT POWER (mW)
_______________________________________________________________________________________ 5
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