MAX9724A View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX9724A
Maxim Integrated
MAX9724A Datasheet PDF : 19 Pages
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60mW, DirectDrive, Stereo Headphone Amplifier
with Low RF Susceptibility and Shutdown
Typical Operating Characteristics (continued)
(VDD = 5V, PGND = SGND = 0V, SHDN = VDD, C1 = C2 = 1µF, RL = ∞, gain = -1.5V/V (RIN = 20kΩ, RF = 30kΩ for the MAX9724A),
THD+N measurement bandwidth = 22Hz to 22kHz, both outputs driven in phase, TA = +25°C, unless otherwise noted.)
OUTPUT POWER
vs. SUPPLY VOLTAGE (TQFN)
120
fIN = 1kHz
RL = 32Ω
100
80
10% THD+N
60
40
20
1% THD+N
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
OUTPUT POWER
vs. LOAD RESISTANCE (UCSP)
35
THD+N = 10%
30
VDD = 3V
fIN = 1kHz
25
20
15
10
THD+N = 1%
5
0
10
100
1000
LOAD RESISTANCE (Ω)
POWER DISSIPATION
vs. OUTPUT POWER (TQFN)
250
200
RL = 16Ω
150
RL = 32Ω
100
50
0
0
VDD = 3V
fIN = 1kHz
POUT = POUTL + POUTR
OUTPUTS IN PHASE
20
40
60
80
OUTPUT POWER (mW)
OUTPUT POWER
vs. SUPPLY VOLTAGE (UCSP)
120
fIN = 1kHz
RL = 32Ω
100
80
10% THD+N
60
40
20
1% THD+N
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
OUTPUT POWER
vs. LOAD RESISTANCE (TQFN)
100
90
THD+N = 10%
80
70
60
50
40
THD+N = 1%
30
20
10
VDD = 5V
fIN = 1kHz
0
10
100
LOAD RESISTANCE (Ω)
POWER DISSIPATION
vs. OUTPUT POWER (UCSP)
160
140
RL = 16Ω
120
RL = 32Ω
100
80
60
40
VDD = 3V
fIN = 1kHz
20
POUT = POUTL + POUTR
OUTPUTS IN PHASE
0
0 5 10 15 20 25 30 35 40 45 50
OUTPUT POWER (mW)
OUTPUT POWER
vs. LOAD RESISTANCE (TQFN)
35
10% THD+N
30
VDD = 3V
fIN = 1kHz
25
20
15
1% THD+N
10
5
0
10
100
1000
LOAD RESISTANCE (Ω)
OUTPUT POWER
vs. LOAD RESISTANCE (UCSP)
100
90
THD+N = 10%
80
70
60
50
40
THD+N = 1%
30
20
10
VDD = 5V
fIN = 1kHz
0
10
100
LOAD RESISTANCE (Ω)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
RL = 32Ω
-20
-40
-60
VDD = 5V
-80
-100
-120
10
VDD = 3V
100
1k
10k
100k
FREQUENCY (Hz)
6 _______________________________________________________________________________________
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