MAX9718/MAX9719
Low-Cost, Mono/Stereo,
1.4W Differential Audio Power Amplifiers
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VCC = 5V, CBIAS = 0.1F, THD+N measurement bandwidth = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
CROSSTALK
vs. FREQUENCY
MAX9718
toc31
FREQUENCY (Hz)
CROSSTALK
(dB)
10k
1k
100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
-110
-120
10
100k
CHANNEL 2
CHANNEL 1
VCC = 3V
VRIPPLE = 200mVP-P
RL = 8
Ω
CBIAS = 1
μF
ENTERING SHUTDOWN
MAX9718 toc32
100
μs/div
CBIAS = 0.1
μF
VCC = 3V
RL = 8
Ω
SHDN
2V/div
OUT+
1V/div
OUT-
1V/div
OUT+ - OUT-
200mV/div
EXITING SHUTDOWN
MAX9718 toc33
4ms/div
CBIAS = 0.1
μF
VCC = 3V
RL = 8
Ω
SHDN
2V/div
OUT+
1V/div
OUT-
1V/div
OUT+ - OUT-
200mV/div
ENTERING POWER-DOWN
MAX9718 toc34
100
μs/div
CBIAS = 0.1
μF
VCC = 3V
RL = 8
Ω
SHDN
1V/div
OUT+
1V/div
OUT-
1V/div
OUT+ - OUT-
200mV/div
EXITING POWER-DOWN
MAX9718 toc35
SHDN
2V/div
OUT+
1V/div
OUT-
1V/div
4ms/div
CBIAS = 0.1
μF
VCC = 3V
RL = 8
Ω
OUT+ - OUT-
200mV/div
CROSSTALK
vs. FREQUENCY
MAX9718
toc30
FREQUENCY (Hz)
CROSSTALK
(dB)
10k
1k
100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
-110
-120
10
100k
CHANNEL 2
CHANNEL 1
VCC = 5V
VRIPPLE = 200mVP-P
RL = 8
Ω
CBIAS = 1
μF
