Rainbow Electronics MAX9712 - Manual (Page 6)

MAX9712
500mW, Low EMI, Filterless,
Class D Audio Amplifier
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V DD = 3.3V, V SYNC = GND, T A = +25°C, unless otherwise noted.)
-140
-100
-120
-60
-80
-20
-40
0
OUTPUT FREQUENCY SPECTRUM
MAX9712TOC22
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
MAX1972 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
MAX1972TOC24
FREQUENCY (Hz)
OUTPUT AMPLITUDE (dB)
-60
-40
-20
-30
-50
-70
-90
-10
RBW = 10kHz
TURN-ON/TURN-OFF RESPONSE
MAX9712TOC25
MAX9712
OUTPUT
SHDN
0V
250mV/div
3V
10ms/div
f = 1kHz
R
L = 8 Ω
3.0
3.5
4.5
4.0
5.5
5.0
6.0
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9712TOC26
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
2.5 3.0 3.5 4.0 4.5 5.0 5.5
T A = +85 °C
T A = +25 °C
T A = -40 °C
0
0.06
0.04
0.02
0.10
0.08
0.14
0.12
0.16
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9712 TOC27
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
µ
A)
T A = +85 °C
T A = -40 °C
T A = +25 °C
-140
-100
-120
-60
-80
-20
-40
0
OUTPUT FREQUENCY SPECTRUM
MAX9712TOC21
FREQUENCY (kHz)
OUTPUT MAGNITUDE (dBV)
0 5 10 15 20
SSM MODE
V
OUT = -60dBV
f = 1kHz
R
L
= 8 Ω
UNWEIGHTED