MAX9730 Maxim Integrated Products, MAX9730 Datasheet - Page 5

• Manufacturer Part Number: MAX9730
• Description: Class G Power Amplifier
• Manufacturer: Maxim Integrated Products

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(V
10µF, R
unless otherwise noted. Typical values are at T
CC
70
60
50
40
30
20
10
0
= CPV
0
L
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
2.4W, Single-Supply, Class G Power Amplifier
12
10
8
6
4
2
0
0
= 8Ω; speaker load resistors (R
2.5
2.5
DD
= SHDN = 3.6V, GND = CPGND = 0V, R
3.0
3.0
POWER EFFICIENCY
vs. OUTPUT POWER
OUTPUT POWER (W)
1
vs. SUPPLY VOLTAGE
vs. SUPPLY VOLTAGE
10% THD+N
3.5
3.5
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
OUTPUT POWER
4.0
4.0
2
4.5
4.5
V
f
IN
CC
5.0
5.0
1% THD+N
= 1kHz
= 5V
f
IN
= 1kHz
5.5
5.5
3
L
) are terminated between OUT+ and OUT-, unless otherwise stated; T
OUT+ - OUT-
6.0
6.0
500mV/div
A
5V/div
SHDN
Typical Operating Characteristics (continued)
= +25°C.) (Notes 1, 2)
IN+
= R
STARTUP WAVEFORM
IN-
= 10kΩ, R
10ms/div
FB+
MAX9730 toc11
= R
3.0
2.5
2.0
1.5
1.0
0.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
FB-
0
0
2.5
0
= 10kΩ, R
OUT+ - OUT-
V
500mV/div
CC
3.0
= 3.6V
5V/div
SHDN
20
vs. LOAD RESISTANCE
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
3.5
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
OUTPUT POWER
FS
40
4.0
= 100kΩ, C1 = 4.7µF, C2 =
V
CC
4.5
SHUTDOWN WAVEFORM
f
P
= 5V
IN
60
OUT
= 1kHz
AT 1% THD+N
5.0
A
10ms/div
80
= T
5.5
MIN
100
6.0
to T
MAX
MAX9730 toc12
,
5