Rainbow Electronics MAX9714 - Manual (Page 5)

MAX9713/MAX9714
6W, Filterless, Spread-Spectrum
Mono/Stereo Class D Amplifiers
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TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9713 toc10
OUTPUT POWER (W)
THD+N (%)
6 4 2
0.01
0.1
1
10
100
0.001
0 8
V DD = 15V
A V = 13dB
f = 1kHz
R
L = 8 Ω
SSM
FFM
EFFICIENCY vs. OUTPUT POWER
MAX9713 toc11
OUTPUT POWER (W)
EFFICIENCY (%)
8 6 4 2
10
20
30
40
50
60
70
80
90
100
0
0 10
R L = 16 Ω
R L = 8 Ω
V DD = 15V
A V = 13dB
EFFICIENCY vs. OUTPUT POWER
MAX9713 toc12
OUTPUT POWER (W)
EFFICIENCY (%)
9 6 3
10
20
30
40
50
60
70
80
90
100
0
0 12
R L = 16 Ω
R L
= 8 Ω
V DD = 20V
A V = 13dB
OUTPUT POWER
vs. SUPPLY VOLTAGE
MAX9713 toc13
SUPPLY VOLTAGE (V)
OUTPUT POWER (W)
22 19 16 13
8
7
6
5
4
3
2
1
0
10 25
A
V
= 13dB
THD+N = 10%
R
L = 8 Ω
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9713 toc16
FREQUENCY (Hz)
PSRR (dB)
10k 1k 100
-60
-50
-40
-30
-20
-10
0
-70
10 100k
V DD = 15V
A V = 13dB
V RIPPLE = 200mV P-P
R L = 16 Ω
10
9
8
7
6
5
4
3
2
1
0
1 10 100
OUTPUT POWER
vs. LOAD RESISTANCE
MAX9713 toc14
LOAD RESISTANCE ( Ω)
OUTPUT POWER (W)
V DD = 15V
A V = 13dB
THD+N = 10%
THD+N = 1%
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
MAX9713 toc15
FREQUENCY (Hz)
CMRR (dB)
10k 1k 100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10 100k
V DD = 15V
A V = 13dB
R L = 8 Ω
CROSSTALK vs. FREQUENCY
MAX9713 toc17
FREQUENCY (Hz)
CROSSTALK (dB)
10 1 0.1
-80
-100
-60
-40
-20
0
-120
0.01 100
LEFT TO RIGHT
RIGHT TO LEFT
OUTPUT REFERRED
A
V = 13dB
OUTPUT FREQUENCY SPECTRUM
MAX9713 toc18
FREQUENCY (Hz)
OUTPUT MAGNITUDE (dB)
15 10 5
-120
-100
-80
-60
-40
-20
0
20
-140
0 20
FFM MODE
P
OUT = 5W
f =1kHz
R
L = 8 Ω
UNWEIGHTED
Typical Operating Characteristics (continued)
(136µH with 16 Ω, 68µH with 8Ω, part in SSM mode, unless otherwise noted.)