MAX9751 Maxim Integrated Products, Inc., MAX9751 Datasheet - Page 9

• Manufacturer Part Number: MAX9751
• Description: 2.6w Stereo Audio Power Amplifiers And Directdrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products, Inc.

(Measurement BW = 22Hz to 22kHz, T
0.001
1000
0.01
100
0.1
10
1
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
0
V
R
A
DD
L
V
10
= 32Ω
= 3dB
= 3.3V
20
-100
-120
125
100
-20
-40
-60
-80
75
50
25
0
OUTPUT POWER (mW)
0
30 40
3.0
10
OUTPUT POWER vs. SUPPLY VOLTAGE
2.6W Stereo Audio Power Amplifiers and
f = 1kHz
_______________________________________________________________________________________
V
V
R
CC
RIPPLE
L
= 32Ω
RIGHT TO LEFT
= 5V
CROSSTALK vs. FREQUENCY
3.5
50
= 200mV
100
(HEADPHONE MODE)
(HEADPHONE MODE)
SUPPLY VOLTAGE (V)
LEFT TO RIGHT
60
R
L
FREQUENCY (Hz)
= 16Ω
4.0
P-P
70
1k
80
R
L
4.5
DirectDrive Headphone Amplifiers
A
= 32Ω
= +25°C, unless otherwise noted.)
90
10k
5.0
Typical Operating Characteristics (continued)
180
160
140
120
100
80
60
40
20
0
100k
5.5
10
OUTPUT POWER vs. LOAD RESISTANCE
THD+N = 1%
THD+N = 10%
(HEADPHONE MODE)
LOAD RESISTANCE (Ω)
100
-100
200
180
160
140
120
100
-10
-20
-30
-40
-50
-60
-70
-80
-90
80
60
40
20
0
0
1000
10
10
CAPACITANCE AND LOAD RESISTANCE
C1 = C2 = 1μF
vs. FREQUENCY (HEADPHONE MODE)
OUTPUT POWER vs. CHARGE-PUMP
V
A
OUTPUT REFERRED
POWER-SUPPLY REJECTION RATIO
RIPPLE
V
= 10.5dB
= 200mV
100
20
250
225
200
175
150
125
100
LOAD RESISTANCE (Ω)
75
50
25
0
POWER DISSIPATION vs. OUTPUT POWER
FREQUENCY (Hz)
0
P-P
C1 = C2 = 2.2μF
25
30
1k
50 75 100 125
(HEADPHONE MODE)
OUTPUT POWER (mW)
V
f = 1kHz
THD+N = 1%
10k
DD
40
= 5V
V
f = 1kHz
P
DD
OUT
150 175
100k
50
= 5V
= P
OUTL
200
+ P
OUTR
225
250
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