max98400a Maxim Integrated Products, Inc., max98400a Datasheet - Page 7

• Manufacturer Part Number: max98400a
• Description: Stereo, High-power, Class D Amplifiers
• Manufacturer: Maxim Integrated Products, Inc.

(MAX98400A, V
C
REL
0.001
0.001
0.001
0.01
0.01
0.01
0.1
0.1
0.1
10
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
= C1 = C2 = 1FF, typical values are at T
0.01
0
0
2
f = 100Hz
TOTAL HARMONIC DISTORTION
f = 1kHz
f = 100Hz
f = 1kHz
PLUS NOISE vs. FREQUENCY
2
4
0.1
vs. OUTPUT POWER
vs. OUTPUT POWER
f = 6kHz
PVDD
OUTPUT POWER (W)
OUTPUT POWER (W)
P
OUT
4
6
FREQUENCY (kHz)
f = 6kHz
= 4W
8
= 18V, V
6
1
Stereo, High-Power, Class D Amplifiers
10
P
OUT
12
= 0.5W
8
SHDN
V
8I LOAD
V
4I LOAD
V
8I LOAD
PVDD
PVDD
PVDD
10
14
10
= 12V
= 12V
= 12V
16
= 5V, LIM_TH = V
100
12
18
A
0.001
0.001
0.01
0.01
100
0.1
= +25NC, unless otherwise noted.)
0.1
90
80
70
60
50
40
30
20
10
10
1
0
1
TOTAL HARMONIC DISTORTION PLUS NOISE
0.01
0
0
S
EFFICIENCY vs. OUTPUT POWER
2
, TEMPLOCK = unconnected; G1 = GND, G2 = open (gain = 20.1dB), C
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
f = 1kHz
4
P
4
f = 100Hz
OUT
0.1
TOTAL OUTPUT POWER (W)
vs. OUTPUT POWER
P
6
OUTPUT POWER (W)
= 7W
OUT
FREQUENCY (kHz)
8
= 1W
f = 6kHz
8
V
8I LOAD,
BOTH CHANNELS DRIVEN
10
12
PVDD
1
Typical Operating Characteristics
12 14
= 12V,
16
V
4I LOAD
V
8I LOAD
PVDD
10
PVDD
16
20
= 12V
= 18V
18
100
20
24
0.001
0.001
0.01
0.01
100
0.1
0.1
90
80
70
60
50
40
30
20
10
10
1
0
1
TOTAL HARMONIC DISTORTION PLUS NOISE
0.01
0
0
f = 100Hz
EFFICIENCY vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
5
PLUS NOISE vs. FREQUENCY
f = 1kHz
f = 6kHz
8
P
TOTAL OUTPUT POWER (W)
0.1
OUT
P
10
OUT
vs. OUTPUT POWER
OUTPUT POWER (W)
= 10W
FREQUENCY (kHz)
16
= 1W
DUE TO THERMAL LIMITING OF
THERMAL FOLDBACK FEATURE
15
STOPS BEFORE 10% THD+N
V
8I LOAD,
BOTH CHANNELS DRIVEN
20
24
PVDD
1
V
R
PVDD
L
= 18V,
25
= 8I
32
V
8I LOAD
= 24V
PVDD
10
30
40
= 18V
35
IN
100
40
48
=
7