MAX9720 Maxim, MAX9720 Datasheet - Page 5

• Manufacturer Part Number: MAX9720
• Description: 50mW / DirectDrive / Stereo Headphone Amplifier with SmartSense and Shutdown
• Manufacturer: Maxim

(V
DD
0.001
0.001
0.001
0.01
0.01
0.01
100
100
100
0.1
0.1
0.1
10
10
10
= 3V, THD+N bandwidth = 22Hz to 22kHz, MODE1 = MODE2 = V
1
1
1
0
0
0
OUTPUTS
OUTPUTS
OUTPUTS
IN PHASE
OUT OF
OUT OF
PHASE
PHASE
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
OUTPUTS
30
20
30
OUT OF
PHASE
OUTPUTS
IN PHASE
Amplifier with SmartSense and Shutdown
OUTPUTS
OUTPUT POWER (mW)
IN PHASE
OUTPUT POWER (mW)
OUTPUT POWER (mW)
60
40
60
_______________________________________________________________________________________
50mW, DirectDrive, Stereo Headphone
90
60
90
V
A
f = 1kHz
R
DD
V
L
V
A
f = 1kHz
R
V
A
f = 1kHz
R
= 16Ω
120
= -1.41V/V
120
DD
V
L
DD
V
L
80
= 3V
= -1V/V
= 16Ω
= -1V/V
= 32Ω
= 3V
= 3V
150
100
150
0.001
0.001
0.001
Typical Operating Characteristics (continued)
0.01
0.01
0.01
100
0.1
100
100
0.1
0.1
10
10
10
1
1
1
0
0
0
V
A
f = 10kHz
R
OUTPUTS
DD
V
L
PLUS NOISE vs. OUTPUT POWER
OUT OF
PHASE
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
= 32Ω
TOTAL HARMONIC DISTORTION
= -1V/V
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
= 3V
30
20
30
OUTPUTS
IN PHASE
OUTPUTS
OUT OF
PHASE
OUTPUT POWER (mW)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
OUTPUTS
OUTPUTS
IN PHASE
OUT OF
PHASE
60
40
60
OUTPUTS
IN PHASE
DD
90
60
90
.)
V
A
f = 10kHz
R
DD
V
L
V
A
f = 10kHz
R
120
= 16Ω
= -1.41V/V
120
DD
V
L
80
= 3V
= -1V/V
= 16Ω
= 3V
150
100
150
0.001
0.001
0.001
0.01
100
0.01
0.01
100
100
0.1
0.1
0.1
10
10
10
1
1
1
0
0
0
OUTPUTS
OUT OF
PLUS NOISE vs. OUTPUT POWER
PHASE
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
OUTPUTS
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
OUT OF
PHASE
20
OUTPUTS
20
OUT OF
30
PHASE
OUTPUTS
IN PHASE
OUTPUTS
IN PHASE
OUTPUTS
IN PHASE
OUTPUT POWER (mW)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
40
40
60
60
60
90
80
V
A
f = 20Hz
R
V
A
f = 20Hz
R
DD
V
L
DD
V
L
V
A
f = 20Hz
R
= 32Ω
= -1.41V/V
= -1.41V/V
= 16Ω
80
120
DD
V
L
= 3V
= 3V
100
= -1V/V
= 32Ω
= 3V
100
120
150
5