max9777etit Maxim Integrated Products, Inc., max9777etit Datasheet - Page 9

• Manufacturer Part Number: max9777etit
• Description: Max9777, Max9778 Stereo 3w Audio Power Amplifiers With Headphone Drive And Input Mux
• Manufacturer: Maxim Integrated Products, Inc.

(V
DD
120
100
80
60
40
20
0
= PV
POWER DISSIPATION vs. OUTPUT POWER
0
100mV/div
DD
HP JACK
OUT_+
2V/div
1V/div
SHDN
= 5V, GND = PGND = 0V, V
-100
-110
-120
-40
-50
-60
-70
-80
-90
50
(HEADPHONE MODE)
OUTPUT POWER (mW)
ENTERING SHUTDOWN (HEADPHONE MODE)
10
V
R
_______________________________________________________________________________________
IN
L
= 16Ω
= 200mV
100
CROSSTALK vs. FREQUENCY
Stereo 3W Audio Power Amplifiers with
RIGHT TO LEFT
100
(HEADPHONE MODE)
P-P
LEFT TO RIGHT
FREQUENCY (Hz)
150
100ms/div
R
f = 1kHz
L
1k
= 16Ω
200
SHDN
10k
MAX9777/78 toc38
Headphone Drive and Input Mux
= 5V, C
70
60
50
40
30
20
10
Typical Operating Characteristics (continued)
0
100k
POWER DISSIPATION vs. OUTPUT POWER
0
BIAS
20
(HEADPHONE MODE)
= 1µF, T
OUTPUT POWER (mW)
40
A
= +25°C, unless otherwise noted.)
60
200mV/div
HP JACK
R
f = 1kHz
80
L
OUT_+
2V/div
1V/div
SHDN
= 32Ω
25
20
15
10
5
0
4.50
100
EXITING SHUTDOWN (HEADPHONE MODE)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
R
INPUT AC-COUPLED TO GND
L
= 16Ω
4.75
T
100
(SPEAKER MODE)
SUPPLY VOLTAGE (V)
A
40
50
60
70
80
90
T
= +85°C
A
10
= +25°C
100ms/div
vs. FREQUENCY (HEADPHONE MODE)
V
POWER-SUPPLY REJECTION RATIO
RIPPLE
5.00
T
A
= -40°C
= 200mV
100
5.25
FREQUENCY (Hz)
MAX9777/78 toc37
P-P
1k
5.50
10k
100k
9