5V, Differential Input, DirectDrive, 130mW
Stereo Headphone Amplifiers with Shutdown
Typical Operating Characteristics (continued)
(MAX9722A, PV
= SV
= +5V, PGND = SGND = 0V, SHDN = SV , C1 = C2 = 1µF, R = ∞, gain = -1V/V, single-ended input,
DD DD L
DD
THD+N measurement bandwidth = 22Hz to 22kHz, T = +25°C, unless otherwise noted.)
A
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
10
1
10
1
10
1
V
A
= 5V
= -2V/V
V
A
= 5V
= -1V/V
V
A
= 5V
DD
DD
V
L
DD
V
L
= -2V/V
V
R = 16Ω
R = 32Ω
R = 32Ω
P
= 5mW
L
OUT
P
= 5mW
OUT
P
= 5mW
OUT
P
= 20mW
OUT
0.1
0.1
0.1
P
= 20mW
OUT
P
= 20mW
OUT
0.01
0.001
0.0001
0.01
0.001
0.0001
0.01
0.001
P
= 40mW
OUT
P
= 80mW
OUT
P
= 80mW
OUT
0.0001
10
100
1k
FREQUENCY (Hz)
10k
100k
10
100
1k
FREQUENCY (Hz)
10k
100k
10
100
1k
FREQUENCY (Hz)
10k
100k
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
10
100
10
100
10
f = 10kHz
f = 1kHz
1
1
1
f = 10kHz
f = 10kHz
f = 1kHz
f = 1kHz
0.1
0.1
0.1
0.01
0.001
0.0001
0.01
0.001
0.0001
0.01
0.001
0.0001
f = 20Hz
V
A
= 3V
= -1V/V
V
A
= 3V
= -1V/V
V
A
= 5V
DD
f = 20Hz
DD
V
L
DD
V
L
f = 20Hz
= -1V/V
V
R = 16Ω
R = 32Ω
R = 16Ω
L
0
10
20
30
40
50
60
70
0
10 20 30 40 50 60 70 80
OUTPUT POWER (mW)
0
10
20
30
40
50
60
70
OUTPUT POWER (mW)
OUTPUT POWER (mW)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
100
10
100
10
100
10
V
A
= 5V
= -1V/V
V
A
= 5V
DD
DD
V
V
A
= 5V
= -2V/V
DD
V
= -2V/V
V
R = 32Ω
L
R = 32Ω
L
R = 16Ω
L
f = 10kHz
1
1
f = 10kHz
f = 1kHz
f = 10kHz
f = 1kHz
1
f = 1kHz
0.1
0.1
0.1
0.01
0.001
0.0001
0.01
0.001
0.0001
0.01
0.001
0.0001
f = 20Hz
f = 20Hz
f = 20Hz
0
20
40
60
80 100 120 140
0
20
40
60
80 100 120 140
0
10
20
30
40
50
60
70
OUTPUT POWER (mW)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
