Datasheet

Typical Operating Characteristics (continued)
(MAX9736A, V
PVDD
= 12V, MOD = high, spread-spectrum modulation mode, V
GND
= V
PGND
= 0V, V
SHDN
= V
MUTE
= 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)
252015105030
10% THD+N
1% THD+N
V
PVDD
= 24V,
SPREAD SPECTRUM
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9736 toc25
FREQUENCY (Hz)
PSRR (dB)
10k1k100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10 100k
100mV
P-P
,
PVDD RIPPLE,
8Ω LOAD
CROSSTALK vs. FREQUENCY
MAX9736 toc26
CROSSTALK (dB)
-100
-80
-60
-40
-20
0
-120
1W OUTPUT,
8Ω LOAD,
SPREAD SPECTRUM
RIGHT TO LEFT
LEFT TO RIGHT
FREQUENCY (Hz)
10k1k10010 100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX9736 toc08
OUTPUT POWER (W)
THD+N (%)
18161412108642
0.01
0.1
1
10
0.001
020
V
PVDD
= 18V,
SPREAD SPECTRUM,
8Ω LOAD
6kHz
1kHz
20Hz
INBAND OUTPUT SPECTRUM
MAX9736 toc28
FREQUENCY (kHz)
OUTPUT AMPLITUDE (dBV)
15105
-100
-80
-60
-40
-20
0
-120
020
8
Ω
LOAD,
SPREAD SPECTRUM
WIDEBAND OUTPUT SPECTRUM
MAX9736 toc29
FREQUENCY (MHz)
OUTPUT AMPLITUDE (dBV)
101
-100
-80
-60
-40
-20
0
20
-120
0.1 100
8Ω 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)
1010.1 100
8Ω 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