MAX9810 查看數據表（PDF） - Maxim Integrated
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MAX9810 Datasheet PDF : 9 Pages
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Electret Condenser Microphone Cartridge
Preamplifier
Typical Operating Characteristics (continued)
(VDD = 3V, GND = 0, RL = 10kΩ connected to 1.5V, CL = 20pF, CIN = 30pF connected to GND, VIN = 0, TA = +25°C, unless otherwise
noted.)
1kHz REJECTION
vs. SWEPT AC SIGNAL ON POWER SUPPLY
90
0.1µF BYPASS CAPACITOR
80
1nF BYPASS CAPACITOR
70
60
50
40
30
20
NO BYPASS CAPACITOR
10
0
500
600 700 800 900 1000
CARRIER FREQUENCY (MHz)
OUTPUT IMPEDANCE
vs. FREQUENCY
100
10
OUTPUT VOLTAGE HIGH vs. LOAD
0
-0.05
-0.10
-0.15
VDD = 2.3V
-0.20
-0.25
VDD = 3V
-0.30
-0.35
-0.40
-0.45
0.1k 1k 10k 100k 1M 10M
LOAD (Ω)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
0.1
VDD = 5V
VIN = 35mVRMS
22Hz TO 22kHz BANDWIDTH
OUTPUT VOLTAGE LOW vs. LOAD
0.35
0.30
0.25
VDD = 2.3V
0.20
0.15
VDD = 3V
0.10
0.05
0
0.1k 1k 10k 100k 1M 10M
LOAD (Ω)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
0.1
VDD = 3V
VIN = 20mVRMS
22Hz TO 22kHz BANDWIDTH
0.01
0.01
1
0.1
10
100 1k 10k 100k 1M
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT VOLTAGE
100
VDD = 5V
fIN = 1kHz
10
1
0.001
10
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT VOLTAGE
10
VDD = 3V
fIN = 1kHz
0.001
10
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT VOLTAGE
10
VDD = 2.3V
fIN = 1kHz
1
1
0.1
0.1
0.1
0.01
0.001
0
0.25 0.50 0.75 1.00 1.25 1.50
OUTPUT VOLTAGE (VRMS)
0.01
0
0.2 0.4 0.6 0.8 1.0 1.2
OUTPUT VOLTAGE (VRMS)
0.01
0
0.2
0.4
0.6
0.8
OUTPUT VOLTAGE (VRMS)
_______________________________________________________________________________________ 5
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