MAX9755 Maxim Integrated Products, MAX9755 Datasheet - Page 8

• 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
8
0.001
0.001
1000
1000
0.01
100
0.01
100
_______________________________________________________________________________________
0.1
0.1
10
10
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
vs. OUTPUT POWER (HEADPHONE MODE)
0
0
V
R
A
V
R
A
DD
L
V
DD
L
V
10
= 16Ω
= 3dB
= 32Ω
= 3dB
= 5V
25
= 3.3V
20
OUTPUT POWER (mW)
OUTPUT POWER (mW)
50
30 40
125
100
75
50
25
0
3.0
OUTPUT POWER vs. SUPPLY VOLTAGE
75
f = 1kHz
50
100
3.5
60
(HEADPHONE MODE)
SUPPLY VOLTAGE (V)
70
R
L
125
= 16Ω
4.0
80
A
150
= +25°C, unless otherwise noted.)
R
90
L
4.5
= 32Ω
0.001
1000
0.01
100
Typical Operating Characteristics (continued)
5.0
0.1
180
160
140
120
100
10
80
60
40
20
1
0
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
10
0
OUTPUT POWER vs. LOAD RESISTANCE
V
R
A
THD+N = 1%
5.5
DD
L
V
= 32Ω
= 3dB
= 5V
20
THD+N = 10%
(HEADPHONE MODE)
LOAD RESISTANCE (Ω)
OUTPUT POWER (mW)
40
100
60
80
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
10
1000
100
vs. FREQUENCY (HEADPHONE MODE)
V
A
OUTPUT REFERRED
POWER-SUPPLY REJECTION RATIO
RIPPLE
V
= 10.5dB
= 200mV
100
0.001
1000
0.01
100
250
225
200
175
150
125
100
0.1
10
75
50
25
1
FREQUENCY (Hz)
0
TOTAL HARMONIC DISTORTION PLUS NOISE
P-P
POWER DISSIPATION vs. OUTPUT POWER
vs. OUTPUT POWER (HEADPHONE MODE)
0
0
V
R
A
1k
DD
L
V
25
= 16Ω
= 3dB
= 3.3V
10
50 75 100 125
(HEADPHONE MODE)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
10k
20
www.DataSheet4U.com
30
V
f = 1kHz
P
100k
DD
OUT
150 175
= 5V
= P
40
OUTL
200
+ P
50
OUTR
225
250
60