max9702etit Maxim Integrated Products, Inc., max9702etit Datasheet - Page 12

• 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.

1.8W, Filterless, Stereo, Class D Audio Power
Amplifier and DirectDrive Stereo Headphone Amplifier
12
(V
DD
-100
-110
-10
-20
-30
-40
-50
-60
-70
-80
-90
60
55
50
45
40
35
30
25
20
80
70
60
50
40
30
20
10
______________________________________________________________________________________
0
0
= PV
2.5
15
10
OUTPUT POWER vs. SUPPLY VOLTAGE
OUTPUT POWER vs. CHARGE-PUMP
R
CAPACITANCE (HEADPHONE MODE)
R
f = 1kHz
V
L
L
IN
DD
= 32Ω
= 32Ω
20
= 100mV
C1 = C2 = 0.47µF
CROSSTALK vs. FREQUENCY
3.0
= SHDN = 3.3V, GND = PGND = 0V, SYNC = V
100
(HEADPHONE MODE)
(HEADPHONE MODE)
25
SUPPLY VOLTAGE (V)
P-P
3.5
FREQUENCY (Hz)
LOAD (Ω)
30
RIGHT TO LEFT
4.0
1k
LEFT TO RIGHT
THD+N = 1%
THD+N = 10%
35
4.5
C1 = C2 = 1µF
40
f = 1kHz
THD+N = 1%
10k
5.0
45
100k
5.5
50
-100
-100
-110
Typical Operating Characteristics (continued)
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
70
60
50
40
30
20
10
0
0
0
-60
10
10
OUTPUT POWER vs. LOAD RESISTANCE
vs. FREQUENCY (HEADPHONE MODE)
THD+N = 1%
V
INPUTS AC GROUNDED
POWER-SUPPLY REJECTION RATIO
RIPPLE
-50
CROSSTALK vs. AMPLITUDE
= 100mV
100
V
(HEADPHONE MODE)
(HEADPHONE MODE)
DD
DD
-40
LOAD RESISTANCE (Ω)
RIGHT TO LEFT
= 3.3V
AMPLITUDE (dBV)
FREQUENCY (Hz)
(SSM), speaker gain = 12dB.)
P-P
-30
V
DD
100
1k
= 5V
-20
THD+N = 10%
LEFT TO RIGHT
-10
10k
V
f = 1kHz
R
f = 1kHz
DD
L
= 32Ω
0
= 5V
1000
100k
10
-100
-120
-140
-20
-40
-60
-80
70
60
50
40
30
20
10
0
0
10
OUTPUT POWER vs. LOAD RESISTANCE
0
f = 1kHz
R
V
f = 1kHz
R
L
OUT
L
OUTPUT FREQUENCY SPECTRUM
TURN-ON/TURN-OFF RESPONSE
= 32Ω
= 32Ω
= -60dBV
(HEADPHONE MODE)
(HEADPHONE MODE)
(HEADPHONE MODE)
5
LOAD RESISTANCE (Ω)
FREQUENCY (kHz)
100ms/div
100
10
THD+N = 10%
THD+N = 1%
15
V
f = 1kHz
DD
MAX9702 toc45
= 3.3V
1000
20
SHDN
MAX9702
OUTPUT