max9773etgt Maxim Integrated Products, Inc., max9773etgt Datasheet - Page 5

• Manufacturer Part Number: max9773etgt
• Description: Max9773 1.8w, Filterless, Ultra-low Emi, Stereo Class D Audio Power Amplifier
• Manufacturer: Maxim Integrated Products, Inc.

(V
DD
0.001
0.01
100
0.1
3.0
2.5
2.0
1.5
1.0
0.5
10
1
0
= V
2.5
0
OUTPUT POWER vs. SUPPLY VOLTAGE
PVDD
V
R
f
R
f
IN
IN
DD
L
L
PLUS NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
= 8Ω
= 1kHz
= 4Ω
= 1kHz
= 5V
3.0
0.4
THD+N = 10%
= V
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
3.5
FFM
SHDN
0.8
_______________________________________________________________________________________
4.0
SSM
= 3.3V, V
THD+N = 1%
1.2
Stereo Class D Audio Power Amplifier
4.5
1.6
GND
5.0
= V
2.0
5.5
PGND
1.8W, Filterless, Ultra-Low EMI,
= 0V, SYNC = V
Typical Operating Characteristics (continued)
100
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
0
0
2.5
0
OUTPUT POWER vs. SUPPLY VOLTAGE
R
f
IN
L
EFFICIENCY vs. OUTPUT POWER
= 8Ω
= 1kHz
R
THD+N = 10%
0.5
3.0
L
= 8Ω
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
1.0
3.5
OUTPUT POWER PER CHANNEL
DD
(SSM), gain = 12dB (GAIN1 = 1, GAIN2 = 1)).
THD+N = 1%
1.5
4.0
R
L
= 4Ω
2.0
4.5
f
V
IN
2.5
5.0
DD
= 1kHz
= 5V
3.0
5.5
100
3.0
2.5
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
0
0
0
1
OUTPUT POWER vs. LOAD RESISTANCE
EFFICIENCY vs. OUTPUT POWER
R
L
0.2
= 8Ω
THD+N = 1%
LOAD RESISTANCE (Ω)
OUTPUT POWER (W)
0.4
OUTPUT POWER PER CHANNEL
0.6
10
THD+N = 10%
V
Z
IN SERIES WITH R
DD
LOAD
0.8
= 5V, f = 1kHz,
R
= 33µH
V
L
f
DD
IN
= 4Ω
1.0
= 1kHz
= 3.3V
L
100
1.2
5