Datasheet

MAX4410
80mW, DirectDrive Stereo Headphone Driver
with Shutdown
_______________________________________________________________________________________ 9
POWER DISSIPATION
vs. OUTPUT POWER
MAX4410 toc49
OUTPUT POWER (mW)
POWER DISSIPATION (mW)
50403010 20
10
20
30
40
50
60
70
0
060
INPUTS 180°
OUT OF PHASE
f
IN
= 1kHz
R
L
= 32Ω
V
DD
= 1.8V
P
OUT
= P
OUTL
+ P
OUTR
INPUTS
IN PHASE
80
60
40
100 10k 100k 1M 10M
20
0
-20
-40
-60
-80
-100
-180
-120
-140
-160
GAIN AND PHASE vs. FREQUENCY
MAX4410 toc50
FREQUENCY (Hz)
GAIN/PHASE (dB/DEGREES)
V
DD
= 3V
A
V
= 1000V/V
R
L
= 16Ω
1k
GAIN
PHASE
10
10 1k 10k 1M100k 10M
0
-10
-20
-30
-50
-40
GAIN FLATNESS vs. FREQUENCY
MAX4410 toc51
FREQUENCY (Hz)
GAIN (dB)
V
DD
= 3V
A
V
= -1V/V
R
L
= 16Ω
100
CHARGE-PUMP OUTPUT RESISTANCE
vs. SUPPLY VOLTAGE
MAX4410 toc52
SUPPLY VOLTAGE (V)
OUTPUT RESISTANCE (Ω)
3.33.02.72.42.1
2
4
6
8
10
0
1.8 3.6
V
IN_
= GND
I
PVSS
= 10mA
NO LOAD
OUTPUT POWER vs. CHARGE-PUMP
CAPACITANCE AND LOAD RESISTANCE
MAX4410 toc53
LOAD RESISTANCE (Ω)
OUTPUT POWER (mW)
403020
20
10
30
40
50
60
70
80
90
0
10 50
f
IN
= 1kHz
THD + N = 1%
INPUTS IN PHASE
C1 = C2 = 1µF
C1 = C2 = 0.47µF
C1 = C2 = 0.68µF
C1 = C2 = 2.2µF
Typical Operating Characteristics (continued)
(C1 = C2 = 2.2µF, THD + N measurement bandwidth = 22Hz to 22kHz, T
A
= +25°C, unless otherwise noted.)
FREQUENCY (kHz)
101
0.1 100
OUTPUT SPECTRUM vs. FREQUENCY
MAX4410 toc54
OUTPUT SPECTRUM (dB)
-100
-80
-60
-40
-20
0
-120
V
IN
= 1V
P-P
f
IN
= 1kHz
R
L
= 32Ω
A
V
= -1V/V