Datasheet

MAX9759
3.2W, High-Efficiency, Low-EMI,
Filterless, Class D Audio Amplifier
_______________________________________________________________________________________ 5
Typical Operating Characteristics
(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. FREQUENCY
MAX9759 toc01
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
10
0.001
10 100k
V
DD
= 5V
R
L
= 3Ω
P
OUT
= 1W
P
OUT
= 2.6W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9759 toc02
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
10
0.001
10 100k
V
DD
= 3.3V
R
L
= 3
Ω
P
OUT
= 500mW
P
OUT
= 1.3W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9759 toc03
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
10
0.001
10 100k
V
DD
= 5V
R
L
= 4
Ω
P
OUT
= 1W
P
OUT
= 2.2W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9759 toc04
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
10
0.001
10 100k
V
DD
= 3.3V
R
L
= 4
Ω
P
OUT
= 500mW
P
OUT
= 700mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9759 toc05
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
10
0.001
10 100k
V
DD
= 5V
R
L
= 8
Ω
P
OUT
= 600mW
P
OUT
= 1.2W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9759 toc06
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.001
0.1
1
10
10 100k
V
DD
= 3.3V
R
L
= 8
Ω
P
OUT
= 300mW
P
OUT
= 500mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9759 toc07
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
10
0.001
10 100k
V
DD
= 5V
R
L
= 8
Ω
P
OUT
= 1.2W
SSM
FFM
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9759 toc08
OUTPUT POWER (W)
THD+N (%)
4321
0.01
0.1
1
10
100
0.001
0
V
DD
= 5V
R
L
= 3
Ω
f
IN
= 200Hz, 1kHz
f
IN
= 10kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9759 toc09
OUTPUT POWER (W)
THD+N (%)
1.51.00.5
0.01
0.1
1
10
100
0.001
02.0
V
DD
= 3.3V
R
L
= 3
Ω
f
IN
= 200Hz, 1kHz
f
IN
= 10kHz