MAX9741 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX9741 Datasheet PDF : 16 Pages
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12W+12W, Low-EMI, Spread-Spectrum,
Stereo, Class D Amplifier
Typical Operating Characteristics
(VDD = 18V, RL = 8Ω, fIN = 1kHz, 33µH with 4Ω, 68µH with 8Ω, part in SSM mode, 136µH with 16Ω, measurement BW = 22Hz to
22kHz, unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
10
RL = 8Ω
VDD = 12V
VDD = 18V
1
VDD = 24V
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
10
RL = 4Ω
VDD = 12V
1
VDD = 18V
VDD = 24V
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
10
1
POUT = 8W
0.1
0.1
0.1
0.01
0
5
10
15
20
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
10
POUT = 8W
1
SSM
0.1
0.01
10
FFM
100
1k
10k
100k
FREQUENCY (Hz)
OUTPUT POWER vs. SUPPLY VOLTAGE
20
18
16
14
RL = 8Ω
12
10
RL = 16Ω
8
6
4
2
0
10
13
16
19
22
25
SUPPLY VOLTAGE (V)
0.01
0
5
10
15
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
10
1
f = 100Hz
f = 10kHz
0.1
f = 1kHz
0.01
0
5
10
15
20
OUTPUT POWER (W)
OUTPUT POWER vs. LOAD RESISTANCE
20
18
THD+N = 10%
16
14
12
10
8
6
THD+N = 1%
4
2
0
1
10
100
LOAD RESISTANCE (Ω)
0.01
10
POUT = 500mW
100
1k
10k
100k
FREQUENCY (Hz)
EFFICIENCY vs. OUTPUT POWER
100
90
VDD = 12V
RL = 8Ω
80
70
60
50
VDD = 18V
VDD = 24V
40
30
20
10
0
0
4
8
12
16
OUTPUT POWER (W)
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
0
-10
-20
-30
-40
-50
-60
-70
-80
10
100
1k
10k
100k
FREQUENCY (Hz)
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