Rainbow Electronics MAX9755 - Manual (Page 10)

MAX9750/MAX9751/MAX9755
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
10 ______________________________________________________________________________________
HEADPHONE OUTPUT SPECTRUM
MAX9750/51 toc32
FREQUENCY (Hz)
MAGNITUDE (dB)
15 10 5
0
0 20
-120
-100
-80
-60
-40
-20
-140
V DD = 5V
f = 1kHz
V
OUT = -60dB
R L = 32Ω
TURN-ON RESPONSE
(HEADPHONE MODE)
MAX9750/51 toc33
10ms/div
SHDN
5V/div
20mV/div HPOUT_
R L = 32Ω
TURN-OFF RESPONSE
(HEADPHONE MODE)
MAX9750/51 toc34
10ms/div
SHDN
5V/div
20mV/div HPOUT_
R L = 32Ω
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9750/51 toc35
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.25 5.00 4.75
4
2
6
8
12
10
14
16
18
0
4.50 5.50
HPS = GND
HPS = V DD
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9750/51 toc36
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
µ
A)
5.25 5.00 4.75 4.50 5.50
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0
Typical Operating Characteristics (continued)
(Measurement BW = 22Hz to 22kHz, T
A
= +25°C, unless otherwise noted.)