Typical Operating Characteristics (continued)
(MAX9736A, VPVDD = 12V, MOD = high, spread-spectrum modulation mode, VGND = VPGND = 0V, VSHDN = VMUTE = 5V, unless
otherwise noted.)
MAX9736
Mono/Stereo High-Power Class D Amplifier
_______________________________________________________________________________________
9
TOTAL OUTPUT POWER
vs. LOAD RESISTANCE
MAX9736
toc24
TOTAL
OUTPUT
POWER
(W)
5
10
15
20
25
30
35
40
0
LOAD RESISTANCE (
Ω)
25
20
15
10
5
030
10% THD+N
1% THD+N
VPVDD = 24V,
SPREAD SPECTRUM
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9736
toc25
FREQUENCY (Hz)
PSRR
(dB)
10k
1k
100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10
100k
100mVP-P,
PVDD RIPPLE,
8
Ω LOAD
CROSSTALK vs. FREQUENCY
MAX9736
toc26
CROSSTALK
(dB)
-100
-80
-60
-40
-20
0
-120
1W OUTPUT,
8
Ω LOAD,
SPREAD SPECTRUM
RIGHT TO LEFT
LEFT TO RIGHT
FREQUENCY (Hz)
10k
1k
100
10
100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9736
toc08
OUTPUT POWER (W)
THD+N
(%)
18
16
14
12
10
8
6
4
2
0.01
0.1
1
10
0.001
020
VPVDD = 18V,
SPREAD SPECTRUM,
8
Ω LOAD
6kHz
1kHz
20Hz
INBAND OUTPUT SPECTRUM
MAX9736
toc28
FREQUENCY (kHz)
OUTPUT
AMPLITUDE
(dBV)
15
10
5
-100
-80
-60
-40
-20
0
-120
020
8
Ω LOAD,
SPREAD SPECTRUM
WIDEBAND OUTPUT SPECTRUM
MAX9736
toc29
FREQUENCY (MHz)
OUTPUT
AMPLITUDE
(dBV)
10
1
-100
-80
-60
-40
-20
0
20
-120
0.1
100
8
Ω LOAD,
FIXED FREQUENCY
WIDEBAND OUTPUT SPECTRUM
MAX9736
toc30
OUTPUT
AMPLITUDE
(dBV)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
-100
FREQUENCY (MHz)
10
1
0.1
100
8
Ω LOAD,
SPREAD SPECTRUM
SHDN ON-/OFF-RESPONSE
MAX9736 toc31
40ms/div
SHDN
2V/div
OUTPUT
5V/div
MUTE ON-/OFF-RESPONSE
MAX9736 toc32
40ms/div
OUTPUT
5V/div
MUTE
2V/div