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ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsLinear IC - Audio amplifier Headphones (2-channel, stereo) Class AB TQFN 16 EP (3x3)
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MAX9722A/MAX9722B
5V, Differential Input, DirectDrive, 130mW
Stereo Headphone Amplifiers with Shutdown
4 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(MAX9722A, PV
DD
= SV
DD
= +5V, PGND = SGND = 0V, SHDN = SV
DD
, C1 = C2 = 1µF, R
L
= ∞, gain = -1V/V, single-ended input,
THD+N measurement bandwidth = 22Hz to 22kHz, T
A
= +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9722 toc04
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001
0.01
0.1
1
10
0.0001
10 100k
V
DD
= 5V
A
V
= -2V/V
R
L
= 16
Ω
P
OUT
= 40mW
P
OUT
= 5mW
P
OUT
= 20mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9722 toc05
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001
0.01
0.1
1
10
0.0001
10 100k
V
DD
= 5V
A
V
= -1V/V
R
L
= 32
Ω
P
OUT
= 80mW
P
OUT
= 5mW
P
OUT
= 20mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9722 toc06
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.001
0.01
0.1
1
10
0.0001
10 100k
V
DD
= 5V
A
V
= -2V/V
R
L
= 32
Ω
P
OUT
= 80mW
P
OUT
= 5mW
P
OUT
= 20mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9722 toc07
OUTPUT POWER (mW)
THD+N (%)
605040302010
0.001
0.01
0.1
1
10
100
0.0001
070
f = 10kHz
f = 20Hz
f = 1kHz
V
DD
= 3V
A
V
= -1V/V
R
L
= 16
Ω
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9722 toc08
OUTPUT POWER (mW)
THD+N (%)
60 705040302010
0.001
0.01
0.1
1
10
100
0.0001
0 80
f = 10kHz
f = 20Hz
f = 1kHz
V
DD
= 3V
A
V
= -1V/V
R
L
= 32
Ω
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9722 toc09
OUTPUT POWER (mW)
THD+N (%)
605040302010
0.001
0.01
0.1
1
10
100
0.0001
070
f = 10kHz
f = 20Hz
f = 1kHz
V
DD
= 5V
A
V
= -1V/V
R
L
= 16
Ω
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9722 toc10
OUTPUT POWER (mW)
THD+N (%)
605040302010
0.001
0.01
0.1
1
10
100
0.0001
070
f = 10kHz
f = 20Hz
f = 1kHz
V
DD
= 5V
A
V
= -2V/V
R
L
= 16
Ω
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9722 toc11
OUTPUT POWER (mW)
THD+N (%)
12010080604020
0.001
0.01
0.1
1
10
100
0.0001
0140
f = 10kHz
f = 20Hz
f = 1kHz
V
DD
= 5V
A
V
= -1V/V
R
L
= 32
Ω
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9722 toc12
OUTPUT POWER (mW)
THD+N (%)
12010080604020
0.001
0.01
0.1
1
10
100
0.0001
0 140
f = 10kHz
f = 20Hz
f = 1kHz
V
DD
= 5V
A
V
= -2V/V
R
L
= 32Ω