MAX4409ETP+T Maxim Integrated Products, MAX4409ETP+T Datasheet - Page 7
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MAX4409ETP+T
Manufacturer Part Number
MAX4409ETP+T
Description
IC AMP AUDIO .08W STER AB 20TQFN
Manufacturer
Maxim Integrated Products
Series
DirectDrive™r
Type
Class ABr
Datasheet
1.MAX4409ETP.pdf
(20 pages)
Specifications of MAX4409ETP+T
Output Type
Headphones, 2-Channel (Stereo)
Max Output Power X Channels @ Load
80mW x 2 @ 16 Ohm
Voltage - Supply
1.8 V ~ 3.6 V
Features
Depop, Short-Circuit and Thermal Protection, Shutdown
Mounting Type
Surface Mount
Package / Case
20-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
(
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
L
DD
OUT
PVSS
f
R
V
P
IN_
= 1kHz
= 16Ω
IN
L
DD
OUT
= 3V
IN PHASE
10
2.1
= P
= 1kHz
= 32Ω
INPUTS
= GND
40
= 1.8V
= 10mA
= P
OUTL
vs. SUPPLY VOLTAGE
POWER DISSIPATION
POWER DISSIPATION
vs. OUTPUT POWER
vs. OUTPUT POWER
OUTL
OUTPUT POWER (mW)
OUTPUT POWER (mW)
SUPPLY VOLTAGE (V)
2.4
20
+ P
IN
+ P
80
OUTR
_______________________________________________________________________________________
= R
OUTR
2.7
30
F
80mW, DirectDrive, Stereo Headphone
120
= R1 = R2 = 10kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, T
OUT OF PHASE
OUT OF PHASE
INPUTS 180°
3.0
40
INPUTS 180°
IN PHASE
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
C1 = C2 = 2.2μF
IN PHASE
GAIN AND PHASE vs. FREQUENCY
f
R
V
P
DD
V
L
INPUTS
IN
L
DD
OUT
= 1000V/V
= 16Ω
C1 = C2 = 0.47μF
= 1kHz
= 32Ω
= 3V
1k
= 3V
40
= P
20
POWER DISSIPATION
vs. OUTPUT POWER
OUTL
LOAD RESISTANCE (Ω)
OUTPUT POWER (mW)
FREQUENCY (Hz)
+ P
10k
80
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
IN
V
A
R
L
DD
OUT
GAIN FLATNESS vs. FREQUENCY
DD
V
L
= 1kHz
= 16Ω
= -1V/V
= 16Ω
= 1.8V
10
100
= 3V
= P
OUTL
POWER DISSIPATION
vs. OUTPUT POWER
OUTPUT POWER (mW)
1k
20
1k
+ P
FREQUENCY (Hz)
FREQUENCY (Hz)
OUTR
10k
30
100k
10k
40
OUT OF PHASE
INPUTS 180°
V
f
R
A
IN
IN PHASE
IN
L
V
INPUTS
= 1kHz
= 32Ω
= -1V/V
= 1V
1M
50
P-P
10M
100k
)
60
7