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ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsLinear IC - Audio amplifier 1-channel (mono) Class D TQFN 16 (4x4)
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MAX9759
3.2W, High-Efficiency, Low-EMI,
Filterless, Class D Audio Amplifier
6 _______________________________________________________________________________________
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9759 toc12
OUTPUT POWER (W)
THD+N (%)
1.51.00.5
0.01
0.1
1
10
100
0.001
02.0
V
DD
= 5V
R
L
= 8
Ω
f
IN
= 200Hz, 1kHz
f
IN
= 10kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9759 toc13
OUTPUT POWER (W)
THD+N (%)
0.60.40.2
0.01
0.1
1
10
100
0.001
0 0.8
V
DD
= 3.3V
R
L
= 8
Ω
f
IN
= 200Hz, 1kHz
f
IN
= 10kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9759 toc14
OUTPUT POWER (W)
THD+N (%)
1.51.00.5
0.01
0.1
1
10
100
0.001
02.0
V
DD
= 5V
f
IN
= 1kHz
R
L
= 8
Ω
f = 1180kHz, FFM
f = 1400kHz, FFM
EFFICIENCY vs. OUTPUT POWER
MAX9759 toc15
OUTPUT POWER (W)
EFFICIENCY (%)
4321
10
20
30
40
50
60
70
80
90
100
0
05
R
L
= 8
Ω
R
L
= 4
Ω
R
L
= 3
Ω
V
DD
= 5V
f
IN
= 1kHz
EFFICIENCY vs. OUTPUT POWER
MAX9759 toc16
OUTPUT POWER (W)
EFFICIENCY (%)
1.51.00.5
10
20
30
40
50
60
70
80
90
100
0
02.0
R
L
= 8
Ω
R
L
= 4
Ω
R
L
= 3
Ω
V
DD
= 3.3V
f
IN
= 1kHz
EFFICIENCY vs. SUPPLY VOLTAGE
MAX9759 toc17
SUPPLY VOLTAGE (V)
EFFICIENCY (%)
5.55.0
4.5
4.03.5
40
50
60
70
80
90
100
30
3.0
R
L
= 8
Ω
R
L
= 4
Ω
f
IN
= 1kHz
THD+N = 1%
OUTPUT POWER
vs. SUPPLY VOLTAGE
MAX9759 toc18
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
5.5
5.04.54.0
3.5
1
2
3
4
5
6
0
3.0
R
L
= 3
Ω
f
IN
= 1kHz
THD+N = 1%
THD+N = 10%
Typical Operating Characteristics (continued)
(V
DD
= PV
DD
= SHDN = MUTE = 5V, GND = PGND = 0V, SYNC = V
DD
(SSM), unless otherwise noted. Gain = 12dB (G1 = 0, G2 = 1).
THD+N measurement bandwidth: 22Hz to 22kHz. Typical values are at T
A
= +25°C.) (See Typical Operating Circuit)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9759 toc10
OUTPUT POWER (W)
THD+N (%)
3
2
1
0.01
0.1
1
10
100
0.001
0
V
DD
= 5V
R
L
= 4
Ω
f
IN
= 200Hz, 1kHz
f
IN
= 10kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9759 toc11
OUTPUT POWER (W)
THD+N (%)
1.00.5
0.01
0.1
1
10
100
0.001
0 1.5
V
DD
= 3.3V
R
L
= 4
Ω
f
IN
= 200Hz, 1kHz
f
IN
= 10kHz