MAX9720 Maxim, MAX9720 Datasheet - Page 6

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

50mW, DirectDrive, Stereo Headphone
Amplifier with SmartSense and Shutdown
(V
6
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
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
OUTPUTS
OUT OF
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
PHASE
OUT OF
OUTPUTS
IN PHASE
PHASE
5
20
OUTPUTS
IN PHASE
10
OUTPUTS
IN PHASE
10
OUTPUT POWER (mW)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
40
20
15
60
20
30
80
25
V
A
f = 1kHz
R
OUTPUTS
DD
V
L
OUT OF
PHASE
V
A
f = 1kHz
R
V
A
f = 1kHz
R
= -1.41V/V
= 32Ω
DD
V
L
DD
V
L
40
= 3V
100
= 16Ω
= 32Ω
= -1V/V
= -1V/V
= 1.8V
= 1.8V
30
120
50
35
0.001
0.001
0.001
0.01
0.01
Typical Operating Characteristics (continued)
100
100
0.01
100
0.1
0.1
10
10
0.1
10
1
1
1
0
0
0
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
5
20
OUTPUTS
IN PHASE
OUT OF
PHASE
10
OUTPUTS
OUTPUTS
OUT OF
PHASE
OUT OF
PHASE
OUTPUT POWER (mW)
OUTPUT POWER (mW)
10
OUTPUT POWER (mW)
40
OUTPUTS
IN PHASE
20
OUTPUTS
IN PHASE
15
60
20
DD
30
80
.)
V
A
f = 10kHz
R
25
DD
V
L
V
A
f = 10kHz
R
= -1.41V/V
= 32Ω
V
A
f = 10kHz
R
DD
V
L
40
DD
V
L
= 3V
100
= -1V/V
= 16Ω
= -1V/V
= 32Ω
= 1.8V
= 1.8V
30
120
50
35
0.001
0.001
0.001
0.01
0.01
0.01
100
100
100
0.1
0.1
0.1
10
10
10
1
1
1
0
0
0
OUTPUTS
IN PHASE
OUTPUTS
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
PLUS NOISE vs. OUTPUT POWER
OUT OF
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
PHASE
TOTAL HARMONIC DISTORTION
OUTPUTS
IN PHASE
5
10
10
OUTPUTS
IN PHASE
10
OUTPUT POWER (mW)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
20
20
15
20
30
30
OUTPUTS
OUT OF
PHASE
V
A
f = 20Hz
R
OUTPUTS
25
OUT OF
PHASE
DD
V
L
V
A
f = 20Hz
R
V
A
f = 20Hz
R
= 16Ω
= -1.41V/V
DD
V
L
DD
V
L
40
= 1.8V
40
= 16Ω
= 32Ω
= -1V/V
= -1V/V
30
= 1.8V
= 1.8V
50
35
50