MAX9746 Просмотр технического описания (PDF) - Maxim Integrated
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MAX9746 Datasheet PDF : 16 Pages
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1.2W, Low-EMI, Filterless,
Class D Audio Amplifier
Typical Operating Characteristics (continued)
(VDD = 3.3V, SYNC = VDD (SSM), TA = +25°C, unless otherwise noted.)
OUTPUT FREQUENCY SPECTRUM
0
FFM MODE
-20 VOUT = -60dBV
f = 1kHz
-40
RL = 8Ω
UNWEIGHTED
-60
OUTPUT FREQUENCY SPECTRUM
0
SSM MODE
-20 VOUT = -60dBV
f = 1kHz
-40
RL = 8Ω
UNWEIGHTED
-60
-80
-80
-100
-100
-120
-120
-140
0
5k
10k
15k
20k
FREQUENCY (Hz)
-140
0
5k
10k
15k
20k
FREQUENCY (Hz)
OUTPUT FREQUENCY SPECTRUM
0
SSM MODE
-20 VOUT = -60dBV
f = 1kHz
-40
RL = 8Ω
A-WEIGHTED
-60
-80
-100
-120
-140
0
5k
10k
15k
20k
FREQUENCY (Hz)
WIDEBAND OUTPUT SPECTRUM
(FFM MODE)
0
RBW = 10kHz
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
1M
10M
100M
1G
FREQUENCY (Hz)
WIDEBAND OUTPUT SPECTRUM
(SSM MODE)
0
RBW = 10kHz
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
1M
10M
100M
1G
FREQUENCY (Hz)
TURN-ON/TURN-OFF RESPONSE
SHDN
MAX9746
OUTPUT
f = 1kHz
RL = 8Ω
10ms/div
6 _______________________________________________________________________________________
3V
0V
250mV/div
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