Datasheet

100
0 0.5 1.0 1.5
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc04
OUTPUT POWER (W)
THD+N (%)
V
DD
= 3.3V
R
L
= 4Ω
f
IN
= 1kHz
100
01.00.5 2.01.5 2.5 3.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc05
OUTPUT POWER (W)
THD+N (%)
f
IN
= 1kHz
V
DD
= 5.0V
R
L
= 4Ω
100
0 0.40.2 0.80.6 1.0 1.2
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc06
OUTPUT POWER (W)
THD+N (%)
V
DD
= 3.3V
R
L
= 8Ω
f
IN
= 1kHz
FFM
SSM
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc07
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 3.3V
R
L
= 8Ω
P
OUT
= 100mW
P
OUT
= 450mW
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc08
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 5.0V
R
L
= 8Ω
P
OUT
= 250mW
P
OUT
= 1W
100
0.01
10 100 10k 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
0.1
1
10
MAX9705toc09
FREQUENCY (Hz)
THD+N (%)
1k
V
DD
= 2.5V
R
L
= 4
Ω
P
OUT
= 50mW
P
OUT
= 300mW
MAX9705
2.3W, Ultra-Low-EMI, Filterless,
Class D Audio Amplifier
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
DD
= 3.3V, SYNC = V
DD
(SSM), differential input, T
A
= +25°C, unless otherwise noted. Typical Operating Characteristics for 4Ω
load condition apply to the MAX9705_ETB+T only.)
100
0 0.4 0.8 1.00.2 0.6 1.2
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc01
OUTPUT POWER (W)
THD+N (%)
f
IN
= 1kHz
V
DD
= 3.3V
R
L
= 8
Ω
100
0 0.5 1.0 1.5 2.0
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc02
OUTPUT POWER (W)
THD+N (%)
f
IN
= 1kHz
V
DD
= 5.0V
R
L
= 8
Ω
100
0 0.2 0.4 0.6 0.8
10
1
0.1
0.01
0.001
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9705toc03
OUTPUT POWER (W)
THD+N (%)
f
IN
= 1kHz
V
DD
= 2.5V
R
L
= 4
Ω