max9724a Maxim Integrated Products, Inc., max9724a Datasheet - Page 5

• Manufacturer Part Number: max9724a
• Description: 60mw, Directdrive, Stereo Headphone Amplifier With Low Rf Susceptibility And Shutdown
• Manufacturer: Maxim Integrated Products, Inc.

(V
THD+N measurement bandwidth = 22Hz to 22kHz, both outputs driven in phase, T
0.001
0.001
0.001
0.01
DD
0.01
0.01
60mW, DirectDrive, Stereo Headphone Amplifier
0.1
0.1
0.1
1
1
1
= 5V, PGND = SGND = 0V, SHDN = V
10
10
10
TOTAL HARMONIC DISTORTION PLUS
TOTAL HARMONIC DISTORTION PLUS
TOTAL HARMONIC DISTORTION PLUS
V
R
V
R
V
R
DD
L
DD
L
DD
L
= 16Ω
= 32Ω
= 16Ω
NOISE vs. FREQUENCY (UCSP)
NOISE vs. FREQUENCY (UCSP)
NOISE vs. FREQUENCY (TQFN)
= 3V
= 5V
= 5V
100
100
100
P
OUT
FREQUENCY (Hz)
FREQUENCY (Hz)
P
FREQUENCY (Hz)
P
= 20mW
P
OUT
OUT
OUT
with Low RF Susceptibility and Shutdown
P
OUT
_______________________________________________________________________________________
= 37mW
= 45mW
= 5mW
1k
1k
1k
= 10mW
P
OUT
= 20mW
10k
10k
10k
100k
100k
100k
DD
0.001
0.001
, C1 = C2 = 1µF, R
70
60
50
40
30
20
10
0.01
0.01
0
0.1
0.1
Typical Operating Characteristics (continued)
1
2.5
1
10
10
f
R
TOTAL HARMONIC DISTORTION PLUS
IN
TOTAL HARMONIC DISTORTION PLUS
V
R
L
V
R
DD
L
= 1kHz
= 16Ω
DD
L
vs. SUPPLY VOLTAGE (TQFN)
P
= 16Ω
3.0
NOISE vs. FREQUENCY (UCSP)
= 32Ω
NOISE vs. FREQUENCY (TQFN)
OUT
= 5V
P
= 3V
OUT
10% THD+N
= 8mW
100
100
= 20mW
SUPPLY VOLTAGE (V)
OUTPUT POWER
3.5
FREQUENCY (Hz)
P
FREQUENCY (Hz)
OUT
P
OUT
L
4.0
= 32mW
1k
= ∞, gain = -1.5V/V (R
= 15mW
1k
1% THD+N
4.5
10k
10k
5.0
5.5
100k
A
100k
= +25°C, unless otherwise noted.)
IN
0.001
0.001
70
60
50
40
30
20
10
0.01
= 20kΩ, R
0
0.01
0.1
0.1
1
2.5
1
10
10
f
R
TOTAL HARMONIC DISTORTION PLUS
IN
TOTAL HARMONIC DISTORTION PLUS
L
V
R
V
R
DD
L
= 1kHz
= 16Ω
vs. SUPPLY VOLTAGE (UCSP)
DD
L
3.0
= 32Ω
NOISE vs. FREQUENCY (TQFN)
= 32Ω
NOISE vs. FREQUENCY (UCSP)
P
= 5V
= 3V
OUT
F
10% THD+N
100
= 30kΩ for the MAX9724A),
100
SUPPLY VOLTAGE (V)
OUTPUT POWER
= 8mW
3.5
P
OUT
FREQUENCY (Hz)
P
FREQUENCY (Hz)
OUT
= 30mW
P
OUT
4.0
= 13mW
1k
1k
= 50mW
1% THD+N
4.5
10k
10k
5.0
5.5
100k
100k
5