MAX4409 Maxim Integrated Products, MAX4409 Datasheet - Page 7
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MAX4409
Manufacturer Part Number
MAX4409
Description
Stereo Headphone Amplifier
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX4409.pdf
(19 pages)
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(
C1 = C2 = 2.2µF, R
400
350
300
250
200
150
100
50
70
60
50
40
30
20
10
10
0
0
8
6
4
2
0
1.8
0
0
CHARGE-PUMP OUTPUT RESISTANCE
f
R
V
P
IN
V
I
NO LOAD
DD
OUT
L
PVSS
f
R
V
P
IN_
IN
= 1kHz
= 16Ω
DD
OUT
IN PHASE
L
2.1
= 3V
10
INPUTS
= 1kHz
= 32Ω
= P
= GND
40
= 1.8V
= 10mA
= P
vs. SUPPLY VOLTAGE
POWER DISSIPATION
POWER DISSIPATION
OUTL
vs. OUTPUT POWER
vs. OUTPUT POWER
OUTPUT POWER (mW)
OUTPUT POWER (mW)
SUPPLY VOLTAGE (V)
OUTL
2.4
20
IN
+ P
80
_______________________________________________________________________________________
+ P
= R
OUTR
OUTR
2.7
30
F
120
80mW, DirectDrive, Stereo Headphone
= R1 = R2 = 10kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, T
OUT OF PHASE
INPUTS 180°
OUT OF PHASE
INPUTS 180°
IN PHASE
3.0
40
INPUTS
Amplifier with Common-Mode Sense
160
50
3.3
200
3.6
60
-100
-120
-140
-160
-180
Typical Operating Characteristics (continued)
-20
-40
-60
-80
180
160
140
120
100
80
60
40
20
80
60
40
20
90
80
70
60
50
40
30
20
10
0
0
0
10
100
0
CAPACITANCE AND LOAD RESISTANCE
OUTPUT POWER vs. CHARGE-PUMP
C1 = C2 = 0.68µF
V
A
R
IN PHASE
C1 = C2 = 2.2µF
GAIN AND PHASE vs. FREQUENCY
f
R
V
P
INPUTS
DD
V
L
IN
L
DD
OUT
= 1000V/V
= 16Ω
C1 = C2 = 0.47µF
= 1kHz
= 32Ω
= 3V
1k
40
= 3V
= P
20
POWER DISSIPATION
vs. OUTPUT POWER
LOAD RESISTANCE (Ω)
OUTPUT POWER (mW)
OUTL
FREQUENCY (Hz)
10k
80
+ P
OUTR
30
OUT OF PHASE
INPUTS 180°
100k
120
C1 = C2 = 1µF
PHASE
INPUTS IN PHASE
GAIN
THD+N = 1%
40
f
160
IN
1M
= 1kHz
10M
200
50
-100
-120
-10
-20
-30
-40
-50
140
120
100
10
-20
-40
-60
-80
80
60
40
20
0
0
0
A
100
10
0
= +25°C, unless otherwise noted.
OUTPUT SPECTRUM vs. FREQUENCY
f
R
V
P
V
A
R
IN
DD
OUT
L
GAIN FLATNESS vs. FREQUENCY
DD
V
L
= 1kHz
= 16Ω
= 16Ω
= -1V/V
10
100
= 1.8V
= 3V
= P
POWER DISSIPATION
OUTL
vs. OUTPUT POWER
OUTPUT POWER (mW)
1k
20
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
+ P
OUTR
10k
30
www.DataSheet4U.com
100k
10k
40
OUT OF PHASE
INPUTS 180°
V
f
R
A
IN PHASE
IN
IN
V
L
INPUTS
= 1kHz
= -1V/V
= 32Ω
= 1V
1M
50
P-P
10M
100k
60
)
7