2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
Typical Operating Characteristics (continued)
(Measurement BW = 22Hz to 22kHz, T = +25°C, unless otherwise noted.)
A
TURN-ON RESPONSE
(SPEAKER MODE)
CROSSTALK vs. FREQUENCY
(SPEAKER MODE)
MAX9750/51 toc11
0
V
V
= 5V
CC
-10
-20
-30
-40
-50
-60
-70
-80
5V/div
= 200mV
RIPPLE
P-P
R = 4Ω
L
SHDN
OUT_+
AND
2V/div
OUT_-
LEFT TO RIGHT
RIGHT TO LEFT
OUT_+
100mV/div
-90
-100
-110
-120
- OUT_-
R
= 8Ω
L
10
100
1k
10k
100k
20ms/div
FREQUENCY (Hz)
TURN-OFF RESPONSE
(SPEAKER MODE)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
MAX9750/51 toc12
10
1
10
1
V = 5V
DD
V
= 5V
DD
L
V
R = 32Ω
R = 16Ω
A
L
5V/div
2V/div
A = 3dB
V
= 3dB
SHDN
OUTPUT POWER = 45mW
OUTPUT POWER = 90mW
OUT_+
AND
OUT_-
0.1
0.01
0.1
0.01
0.001
OUTPUT POWER = 10mW
OUTPUT POWER = 30mW
OUT_+
- OUT_-
20mV/div
0.001
R
= 8Ω
L
0.0001
0.0001
10
100
1k
10k
100k
10
100
1k
10k
100k
20ms/div
FREQUENCY (Hz)
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
10
10
1
V
= 3.3V
V
= 3.3V
DD
DD
R = 32Ω
V
R = 16Ω
V
L
L
A
= 3dB
A
= 3dB
1
0.1
OUTPUT POWER = 30mW
OUTPUT POWER = 45mW
0.1
0.01
0.01
OUTPUT POWER = 10mW
OUTPUT POWER = 10mW
0.001
0.001
0.0001
0.0001
10
100
1k
10k
100k
10
100
1k
10k
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
_______________________________________________________________________________________
7
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
