Rainbow Electronics MAX9700 - Manual (Page 6)

MAX9700
1.2W, Low-EMI, Filterless,
Class D Audio Amplifier
6 _______________________________________________________________________________________
-140
-100
-120
-60
-80
-20
-40
0
OUTPUT FREQUENCY SPECTRUM
MAX9700 toc22
FREQUENCY (kHz)
OUTPUT MAGNITUDE (dBV)
0 5 10 15 20
SSM MODE
V
OUT = -60dBV
f = 1kHz
R
L = 8 Ω
A-WEIGHTED
0
-100
1M 10M 100M 1G
WIDEBAND OUTPUT SPECTRUM
(FFM MODE)
-80
MAX9700 toc23
FREQUENCY (Hz)
OUTPUT AMPLITUDE (dB)
-60
-40
-20
-30
-50
-70
-90
-10
RBW = 10kHz
0
-100
1M 10M 100M 1G
WIDEBAND OUTPUT SPECTRUM
(SSM MODE)
-80
MAX9700 toc24
FREQUENCY (Hz)
OUTPUT AMPLITUDE (dB)
-60
-40
-20
-30
-50
-70
-90
-10
RBW = 10kHz
TURN-ON/TURN-OFF RESPONSE
MAX9700 toc25
MAX9712
OUTPUT
SHDN
0V
250mV/div
3V
10ms/div
f = 1kHz
R
L = 8 Ω
-140
-100
-120
-60
-80
-20
-40
0
OUTPUT FREQUENCY SPECTRUM
MAX9700 toc21
FREQUENCY (kHz)
OUTPUT MAGNITUDE (dBV)
0 5 10 15 20
SSM MODE
V
OUT = -60dBV
f = 1kHz
R
L = 8 Ω
UNWEIGHTED
GSM POWER-SUPPLY REJECTION
MAX9700 toc19
MAX9712
OUTPUT
V DD
100 µV/div
500mV/div
2ms/div
f = 217Hz
INPUT LOW = 3V
INPUT HIGH = 3.5V DUTY CYCLE = 88%
R
L = 8 Ω
-140
-100
-120
-60
-80
-20
-40
0
OUTPUT FREQUENCY SPECTRUM
MAX9700 toc20
FREQUENCY (kHz)
OUTPUT MAGNITUDE (dBV)
0 5 10 15 20
FFM MODE
V
OUT = -60dBV
f = 1kHz
R
L = 8 Ω
UNWEIGHTED
Typical Operating Characteristics (continued)
(V DD = 3.3V, SYNC = GND (SSM), T A = +25°C, unless otherwise noted.)