Maxim MAX9777 Manual page 7

Stereo 3W Audio Power Amplifiers with
(V = PV = 5V, GND = PGND = 0V, V
DD DD
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (SPEAKER MODE)
40
V = 200mV
RIPPLE
50
60
70
80
90
100
10 100
ENTERING SHUTDOWN (SPEAKER MODE)
V
DD
2V/div
OUT_+ AND OUT_-
1V/div
OUT_+ - OUT_-
200mV/div
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
1
0.1
P = 25mW
OUT
0.01
0.001
P = 100mW
OUT
0.0001
10 100
_______________________________________________________________________________________
Headphone Drive and Input Mux
Typical Operating Characteristics (continued)
SHDN = 5V, C
BIAS
P-P
1k 10k 100k
FREQUENCY (Hz)
MAX9777/78 toc20
400ms/div
R = 16Ω
L
A = 1V/V
V
P = 50mW
OUT
P = 150mW
OUT
1k 10k 100k
FREQUENCY (Hz)
= 1µF, T = +25°C, unless otherwise noted.)
A
-40
V
IN
R = 8Ω
-50
L
-60
-70
-80
-90
-100
-110
-120
10
EXITING SHUTDOWN (SPEAKER MODE)
SHDN
2V/div
OUT_+ AND OUT_-
1V/div
OUT_+ - OUT_-
500mV/div
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (HEADPHONE MODE)
1
0.1
P
OUT
0.01
P
0.001
OUT
0.0001
10
CROSSTALK vs. FREQUENCY
(SPEAKER MODE)
= 200mV
P-P
RIGHT TO LEFT
LEFT TO RIGHT
100 1k 10k 100k
FREQUENCY (Hz)
MAX9777/78 toc21
100ms/div
R = 16Ω
L
A = 2V/V
V
= 25mW
P = 50mW
OUT
= 100mW
P = 150mW
OUT
100 1k 10k 100k
FREQUENCY (Hz)
7