MAX9759 Maxim Integrated Products, MAX9759 Datasheet - Page 6

• Manufacturer Part Number: MAX9759
• Description: 3.2W High-Efficiency Low-EMI Filterless Class D Audio Amplifier
• Manufacturer: Maxim Integrated Products

3.2W, High-Efficiency, Low-EMI, Filterless,
Class D Audio Amplifier
6
(V
THD+N measurement bandwidth: 22Hz to 22kHz. Typical values are at T
DD
0.001
0.001
0.01
0.01
100
100
100
0.1
0.1
_______________________________________________________________________________________
10
10
90
80
70
60
50
40
30
20
10
1
1
0
= PV
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
0
0
0
V
R
V
R
DD
DD
L
EFFICIENCY vs. OUTPUT POWER
DD
L
= 8Ω
= 4Ω
= 3.3V
R
= 5V
L
= SHDN = MUTE = 5V, GND = PGND = 0V, SYNC = V
= 8Ω
0.2
0.5
vs. OUTPUT POWER
vs. OUTPUT POWER
1
OUTPUT POWER (W)
OUTPUT POWER (W)
OUTPUT POWER (W)
f
IN
= 200Hz, 1kHz
f
IN
= 200Hz, 1kHz
R
0.4
L
1.0
= 4Ω
2
0.6
R
1.5
V
f
IN
f
f
L
DD
IN
IN
= 3Ω
= 1kHz
= 10kHz
= 10kHz
= 3.3V
3
0.8
2.0
0.001
0.001
0.01
0.01
100
100
100
Typical Operating Characteristics (continued)
0.1
0.1
10
10
90
80
70
60
50
40
30
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
3.0
0
0
V
R
EFFICIENCY vs. SUPPLY VOLTAGE
DD
L
V
f
R
IN
DD
L
= 4Ω
= 1kHz
= 8Ω
= 3.3V
= 5V
3.5
0.5
R
vs. OUTPUT POWER
vs. OUTPUT POWER
L
f
f = 1180kHz, FFM
SUPPLY VOLTAGE (V)
IN
OUTPUT POWER (W)
OUTPUT POWER (W)
= 8Ω
0.5
f = 1400kHz, FFM
= 200Hz, 1kHz
4.0
DD
1.0
(SSM), unless otherwise noted. Gain = 12dB (G1 = 0, G2 = 1).
A
4.5
R
= +25°C.) (See Typical Operating Circuit)
L
1.0
= 4Ω
f
THD+N = 1%
IN
1.5
f
= 1kHz
IN
5.0
= 10kHz
1.5
2.0
5.5
0.001
0.01
100
100
0.1
10
90
80
70
60
50
40
30
20
10
1
0
6
5
4
3
2
1
0
TOTAL HARMONIC DISTORTION PLUS NOISE
3.0
0
0
R
f
V
R
IN
EFFICIENCY vs. OUTPUT POWER
DD
L
L
= 8Ω
= 3Ω
= 1kHz
= 5V
3.5
1
R
vs. SUPPLY VOLTAGE
0.5
THD+N = 10%
L
vs. OUTPUT POWER
= 8Ω
f
SUPPLY VOLTAGE (V)
IN
OUTPUT POWER (W)
OUTPUT POWER
OUTPUT POWER (W)
= 200Hz, 1kHz
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4.0
2
R
1.0
L
= 4Ω
THD+N = 1%
4.5
3
R
1.5
L
V
f
IN
f
IN
DD
= 3Ω
5.0
= 1kHz
4
= 10kHz
= 5V
2.0
5.5
5