max9779etit Maxim Integrated Products, Inc., max9779etit Datasheet - Page 8
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max9779etit
Manufacturer Part Number
max9779etit
Description
Max9779 2.6w Stereo Audio Power Amplifier And Directdrive Headphone Amplifier
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX9779ETIT.pdf
(19 pages)
2.6W Stereo Audio Power Amplifier and
DirectDrive Headphone Amplifier
(Measurement BW = 22Hz to 22kHz, T
8
_______________________________________________________________________________________
HPOUT_
SHDN
200
180
160
140
120
100
10
18
16
14
12
80
60
40
20
8
6
4
2
0
0
4.50
10
CAPACITANCE AND LOAD RESISTANCE
OUTPUT POWER vs. CHARGE-PUMP
C1 = C2 = 1µF
HPS = GND
R
L
= 32Ω
4.75
TURN-ON RESPONSE
(HEADPHONE MODE)
vs. SUPPLY VOLTAGE
20
SUPPLY CURRENT
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
10ms/div
C1 = C2 = 2.2µF
5.00
30
HPS = V
A
= +25°C, unless otherwise noted.)
DD
V
f = 1kHz
THD+N = 1%
5.25
DD
40
MAX9750/51 toc28
= 5V
Typical Operating Characteristics (continued)
5.50
50
5V/div
20mV/div
HPOUT_
SHDN
-100
-120
-140
0.35
0.30
0.25
0.20
0.15
0.10
0.05
-20
-40
-60
-80
0
0
4.50
0
R
HEADPHONE OUTPUT SPECTRUM
L
SHUTDOWN SUPPLY CURRENT
= 32Ω
4.75
TURN-OFF RESPONSE
(HEADPHONE MODE)
vs. SUPPLY VOLTAGE
5
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
10ms/div
5.00
10
V
f = 1kHz
V
R
DD
OUT
L
5.25
15
MAX9750/51 toc29
= 32Ω
= 5V
= -60dB
5.50
20
5V/div
20mV/div