MAX9755 Maxim Integrated Products, MAX9755 Datasheet - Page 6

• Manufacturer Part Number: MAX9755
• Description: 2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products

2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
(Measurement BW = 22Hz to 22kHz, T
6
0.0001
0.001
0.001
0.01
0.01
3.0
2.5
2.0
1.5
1.0
0.5
_______________________________________________________________________________________
100
0.1
10
0.1
10
0
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
0
vs. LOAD RESISTANCE (SPEAKER MODE)
vs. OUTPUT POWER (SPEAKER MODE)
1
V
R
A
V
R
A
MAX9750C
vs. FREQUENCY (SPEAKER MODE)
CC
L
V
CC
L
V
= 3Ω
= 10.5dB
= 3Ω
= 10.5dB
0.5
THD+N = 1%
= 5V
f
IN
= 5V
OUTPUT POWER = 1.5W
OUTPUT POWER = 500mW
= 20Hz
100
LOAD RESISTANCE (Ω)
1.0
OUTPUT POWER (W)
f
OUTPUT POWER
IN
FREQUENCY (Hz)
= 10kHz
THD+N = 10%
1.5
1k
f
10
IN
= 1kHz
2.0
10k
V
f = 1kHz
A
MAX9750C
CC
V
2.5
= 10.5dB
= 5V
A
3.0
100k
= +25°C, unless otherwise noted.)
100
0.0001
0.001
0.001
0.01
0.01
0.1
100
10
0.1
10
1
5
4
3
2
1
0
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
POWER DISSIPATION vs. OUTPUT POWER
10
0
0
vs. OUTPUT POWER (SPEAKER MODE)
V
f = 1kHz
P
MAX9750C
V
R
A
V
R
A
MAX9750C
DD
OUT
vs. FREQUENCY (SPEAKER MODE)
CC
L
V
CC
L
V
0.5
= 4Ω
= 10.5dB
= 4Ω
= 10.5dB
= 5V
= 5V
= 5V
= P
OUTPUT POWER = 1.25W
OUTPUT POWER = 500mW
0.5
1.0
OUTL
100
f
IN
f
IN
(SPEAKER MODE)
= 20Hz
OUTPUT POWER (W)
OUTPUT POWER (W)
= 10kHz
+ P
FREQUENCY (Hz)
1.5
R
L
OUTR
= 8Ω
1.0
2.0
R
1k
f
L
IN
= 4Ω
Typical Operating Characteristics
= 1kHz
2.5
3.0
1.5
10k
3.5
2.0
100k
4.0
0.0001
0.001
0.001
-100
0.01
0.01
-10
-20
-30
-40
-50
-60
-70
-80
-90
100
0.1
10
0.1
10
1
0
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
0
vs. OUTPUT POWER (SPEAKER MODE)
V
A
OUTPUT REFERRED
V
R
A
POWER-SUPPLY REJECTION RATIO
RIPPLE
V
V
R
A
MAX9750C
vs. FREQUENCY (SPEAKER MODE)
vs. FREQUENCY (SPEAKER MODE)
CC
L
V
CC
L
V
= 10.5dB
= 8Ω
= 10.5dB
OUTPUT POWER = 600mW
= 8Ω
= 10.5dB
OUTPUT POWER = 100mW
= 5V
0.2
= 5V
f
IN
= 200mV
f
= 20Hz
IN
100
100
= 10kHz
OUTPUT POWER (W)
0.4
FREQUENCY (Hz)
FREQUENCY (Hz)
P-P
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0.6
1k
1k
f
IN
= 1kHz
0.8
10k
10k
1.0
100k
1.2
100k