max9702etit Maxim Integrated Products, Inc., max9702etit Datasheet - Page 9

• Manufacturer Part Number: max9702etit
• Description: Max9702 1.8w, Filterless, Stereo, Class D Audio Power Amplifier And Directdrive Stereo Headphone Amplifier
• Manufacturer: Maxim Integrated Products, Inc.

Amplifier and DirectDrive Stereo Headphone Amplifier
(V
DD
0.001
1000
3000
2500
2000
1500
1000
0.01
800
600
400
200
500
100
0.1
10
0
1
0
NOISE vs. OUTPUT POWER (SPEAKER MODE)
= PV
2.5
1
0
OUTPUT POWER vs. SUPPLY VOLTAGE
TOTAL HARMONIC DISTORTION PLUS
V
f = 1kHz
R
f
V
R
f
IN
IN
DD
L
DD
L
DD
= 4Ω
= 1kHz
= 8Ω
= 1kHz
= 3.3V
= 5V
3.0
300
THD+N = 1%
= SHDN = 3.3V, GND = PGND = 0V, SYNC = V
vs. LOAD RESISTANCE
LOAD RESISTANCE (Ω)
OUTPUT POWER
OUTPUT POWER (mW)
SUPPLY VOLTAGE (V)
3.5
SSM
600
THD+N = 10%
_______________________________________________________________________________________
1.8W, Filterless, Stereo, Class D Audio Power
FFM
4.0
10
THD+N = 10%
900
THD+N = 1%
4.5
1200
5.0
1500
100
5.5
2000
1500
1000
Typical Operating Characteristics (continued)
-100
500
100
-10
-20
-30
-40
-50
-60
-70
-80
-90
90
80
70
60
50
40
30
20
10
0
0
0
2.5
10
0
OUTPUT POWER vs. SUPPLY VOLTAGE
R
f
IN
V
R
POWER-SUPPLY REJECTION RATIO
L
vs. FREQUENCY (SPEAKER MODE)
EFFICIENCY vs. OUTPUT POWER
RIPPLE
L
= 8Ω
= 1kHz
= 8Ω
3.0
0.5
= 100mV
100
V
DD
DD
THD+N = 10%
SUPPLY VOLTAGE (V)
(SPEAKER MODE)
OUTPUT POWER (W)
3.5
1.0
= 3.3V
FREQUENCY (Hz)
(SSM), speaker gain = 12dB.)
P-P
R
L
R
= 8Ω
L
4.0
1.5
= 4Ω
1k
V
f
P
IN
DD
OUT
= 1kHz
= 5V
= P
4.5
V
2.0
THD+N = 1%
DD
OUTL
= 5V
10k
+ P
5.0
2.5
OUTR
100k
5.5
3.0
-100
100
2.5
2.0
1.5
1.0
0.5
-10
-20
-30
-40
-50
-60
-70
-80
-90
90
80
70
60
50
40
30
20
10
0
0
0
10
0
1
V
V
R
OUT
DD
L
EFFICIENCY vs. OUTPUT POWER
= 8Ω
CROSSTALK vs. FREQUENCY
= 3.3V, 5V
THD+N = 1%
= -30dBV
0.2
vs. LOAD RESISTANCE
100
LEFT TO RIGHT
LOAD RESISTANCE (Ω)
(SPEAKER MODE)
OUTPUT POWER
(SPEAKER MODE)
OUTPUT POWER (W)
FREQUENCY (Hz)
0.4
10
1k
RIGHT TO LEFT
V
f
P
IN
R
DD
OUT
THD+N = 10%
L
0.6
= 1kHz
= 4Ω
= 3.3V
= P
R
OUTL
L
10k
= 8Ω
V
f = 1kHz
0.8
DD
+ P
= 5V
OUTR
100k
100
1.0
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