MAX9750 查看數據表（PDF） - Maxim Integrated
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MAX9750 Datasheet PDF : 31 Pages
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2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
Typical Operating Characteristics (continued)
(Measurement BW = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
OUTPUT POWER
vs. LOAD RESISTANCE (SPEAKER MODE)
3.5
3.0
THD+N = 10%
2.5
2.0
THD+N = 1%
1.5
1.0
OUTPUT POWER
vs. LOAD RESISTANCE (SPEAKER MODE)
3.0
VCC = 5V
f = 1kHz
2.5
AV = 10.5dB
MAX9750C
2.0
THD+N = 10%
1.5
1.0
THD+N = 1%
0.5
0.5
0
1
10
100
LOAD RESISTANCE (Ω)
0
1
10
100
LOAD RESISTANCE (Ω)
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
5
VDD = 5V
f = 1kHz
4 POUT = POUTL + POUTR
3
RL = 4Ω
2
RL = 8Ω
1
0
0
1
2
3
4
OUTPUT POWER (W)
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
5
VDD = 5V
f = 1kHz
4 POUT = POUTL + POUTR
MAX9750C
3
RL = 4Ω
2
1
RL = 8Ω
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
OUTPUT POWER (W)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (SPEAKER MODE)
0
VRIPPLE = 200mVP-P
-10 AV = 10.5dB
-20 OUTPUT REFERRED
-30
-40
-50
-60
-70
-80
-90
-100
10
100
1k
10k
100k
FREQUENCY (Hz)
CROSSTALK vs. FREQUENCY
(SPEAKER MODE)
0
-10
VCC = 5V
VRIPPLE = 200mVP-P
-20 RL = 4Ω
-30
-40
-50
-60
-70
-80
LEFT TO RIGHT
-90
-100
RIGHT TO LEFT
-110
-120
10
100
1k
10k
100k
FREQUENCY (Hz)
SHDN
OUT_+
AND
OUT_-
TURN-ON RESPONSE
(SPEAKER MODE)
MAX9750/51 toc16
5V/div
2V/div
OUT_+
- OUT_-
RL = 8Ω
20ms/div
100mV/div
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