MCP3903 Ver la hoja de datos (PDF) - Microchip Technology
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Fabricante
MCP3903 Datasheet PDF : 54 Pages
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MCP3903
Note: Unless otherwise indicated, AVDD = 5.0V, DVDD = 3.3 V; TA = +25°C, MCLK = 4 MHz; PRESCALE = 1; OSR =
64; GAIN = 1; Dithering OFF; VIN = -0.5 dBFS @ 60 Hz.
.
-60
-70
120
fs=15.625KHz
OSR=64
100
fs=15.625KHz
OSR=64
-80
80
Dithering OFF
-90
60
-100
Dithering ON
40
-110
20
-120
20 50 100 200 500 1000 2000
Input Frequency (Hz)
FIGURE 2-13:
Total Harmonic Distortion
vs. Input Signal Frequency.
0
-40 -20 0 25 45 85 105 125
Temperature (°C)
FIGURE 2-16:
Signal-to-Noise and
Distortion vs. Temperature.
0
fs=15.625KHz
-20
OSR=64
-40
-60
-80
-100
-120
-40 -20 0 25 45 85 105 125
Temperature (°C)
FIGURE 2-14:
Total Harmonic Distortion
vs. Temperature.
90
80
70
60
50
40
30
20
10
0
-10
0.00001 0.001
0.1
10
Input Signal Amplitude (mV)
1000
FIGURE 2-17:
Signal-to-Noise and
Distortion vs. Input Signal Amplitude.
100
90
Dithering OFF
80
70
Dithering ON
60
50
40
30
20
fs=15.625KHz
OSR=64
10
0
20 50 100 200 500 1000 2000
Input Frequency (Hz)
FIGURE 2-15:
Signal-to-Noise and
Distortion vs. Input Signal Frequency.
FIGURE 2-18:
Signal-to-Noise and
Distortion vs. Master Clock.
© 2011 Microchip Technology Inc.
DS25048B-page 11
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