max9702etit Maxim Integrated Products, Inc., max9702etit Datasheet - Page 11

• 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
0.001
DD
0.001
0.20
0.15
0.10
0.05
0.01
0.01
100
0.1
0.1
10
10
0
1
SHUTDOWN CURRENT vs. SUPPLY VOLTAGE
1
NOISE vs. FREQUENCY (HEADPHONE MODE)
TOTAL HARMONIC DISTORTION PLUS NOISE
= PV
2.5
vs. OUTPUT POWER (HEADPHONE MODE)
10
0
TOTAL HARMONIC DISTORTION PLUS
V
R
V
R
DD
L
DD
L
OUTPUT POWER = 10mW
DD
= 32Ω
= 32Ω
f
IN
3.0
= 3.3V
= 3.3V
10
= 1kHz
= SHDN = 3.3V, GND = PGND = 0V, SYNC = V
100
(SPEAKER MODE)
OUTPUT POWER (mW)
SUPPLY VOLTAGE (V)
OUTPUT POWER = 30mW
3.5
20
FREQUENCY (Hz)
f
IN
______________________________________________________________________________________
f
= 10kHz
IN
1.8W, Filterless, Stereo, Class D Audio Power
4.0
30
1k
= 20Hz
4.5
40
10k
5.0
50
100k
5.5
60
0.001
0.001
0.01
0.01
100
350
300
250
200
150
100
Typical Operating Characteristics (continued)
0.1
0.1
10
50
10
1
0
1
NOISE vs. FREQUENCY (HEADPHONE MODE)
TOTAL HARMONIC DISTORTION PLUS NOISE
POWER DISSIPATION vs. OUTPUT POWER
vs. OUTPUT POWER (HEADPHONE MODE)
10
0
0
TOTAL HARMONIC DISTORTION PLUS
V
R
P
V
R
V
R
f
DD
L
OUT
DD
L
DD
L
IN
OUTPUT POWER = 10mW
= 32Ω
= 32Ω
= 32Ω
= 1kHz
= 5V
= 5V
= 5V
10
= P
30
OUTR
100
(HEADPHONE MODE)
DD
OUTPUT POWER (mW)
OUTPUT POWER (mW)
OUTPUT POWER = 30mW
20
+ P
FREQUENCY (Hz)
f
(SSM), speaker gain = 12dB.)
IN
60
OUTL
= 10kHz
30
1k
f
IN
90
= 20Hz
40
10k
120
50
100k
150
60
0.001
0.001
0.01
0.01
100
200
175
150
125
100
0.1
0.1
10
10
75
50
25
1
1
0
NOISE vs. FREQUENCY (HEADPHONE MODE)
TOTAL HARMONIC DISTORTION PLUS NOISE
POWER DISSIPATION vs. OUTPUT POWER
vs. OUTPUT POWER (HEADPHONE MODE)
10
0
0
TOTAL HARMONIC DISTORTION PLUS
V
P
V
R
V
R
DD
L
DD
OUT
DD
L
f
= 16Ω
IN
= 16Ω
OUTPUT POWER = 15mW
= 3.3V
= 3.3V
= 3.3V
10
= 10kHz
= P
R
OUTPUT POWER = 40mW
L
30
OUTR
= 16Ω
100
(HEADPHONE MODE)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
20
+ P
FREQUENCY (Hz)
60
OUTL
f
IN
f
IN
= 20Hz
30
1k
= 1kHz
R
L
90
= 32Ω
40
10k
120
50
100k
150
60
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