MAX9715 Maxim Integrated Products, MAX9715 Datasheet - Page 4

• Manufacturer Part Number: MAX9715
• Description: Filterless Class D Audio Amplifier
• Manufacturer: Maxim Integrated Products

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2.8W, Low-EMI, Stereo, Filterless Class D
Audio Amplifier
(V
Typical Operating Circuit/Functional Diagram)
4
DD
_______________________________________________________________________________________
= 5.0V, C
VDD
0.001
0.01
100
0.1
100
10
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
1
90
80
70
60
50
40
30
20
10
0
0
= 3 x 0.1µF, C
4.5
4.5
0
f
P
OUTPUTS IN-PHASE
THD+N = 1%
IN
OUT
PLUS NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
= 1kHz
= P
0.5
4.8
4.8
vs. SUPPLY VOLTAGE
vs. SUPPLY VOLTAGE
OUTL
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
OUTPUT POWER
f
OUTPUT POWER (W)
IN
EFFICIENCY
+ P
f
= 20Hz
IN
1.0
BIAS
R
OUTR
= 1kHz
R
L
L
= 4Ω
5.0
5.0
= 8Ω
THD+N = 10%
THD+N = 1%
= 1µF, C
1.5
f
IN
= 10kHz
5.3
5.3
f
R
2.0
V
R
IN
L
Typical Operating Characteristics (continued)
DD
L
INL
= 1kHz
= 4Ω
= 8Ω
= 5V
= C
5.5
5.5
2.5
INR
= 1µF, A
V
= +10.5dB, T
3.0
2.5
4.0
3.5
2.0
1.5
1.0
0.5
100
2.5
2.0
1.5
1.0
0.5
0
90
80
70
60
50
40
30
20
10
0
0
4.5
0
1
THD+N = 1%
A
R
L
1
= +25°C, unless otherwise noted.) (See the
= 8Ω
4.8
vs. LOAD RESISTANCE
vs. SUPPLY VOLTAGE
R
vs. OUTPUT POWER
LOAD RESISTANCE (Ω)
L
SUPPLY VOLTAGE (V)
OUTPUT POWER
OUTPUT POWER (W)
OUTPUT POWER
= 4Ω
10
THD+N = 10%
2
EFFICIENCY
THD+N = 10%
5.0
3
V
f
P
OUTPUTS IN-PHASE
IN
DD
OUT
= 1kHz
= 5V
THD+N = 1%
= P
100
4
V
f
L
OUTL
IN
LOAD
DD
5.3
= 1kHz
= 5V
f
R
IN
+ P
L
= 33µH
5
= 1kHz
= 8Ω
OUTR
5.5
1k
6