MCP3903 Ver la hoja de datos (PDF) - Microchip Technology
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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.
.
100
95
90
85
OSR = 256
80
75
OSR = 64
70
OSR = 128
65
OSR = 32
60
55
50
1
2
4
8
16 32
GAIN (V/V)
FIGURE 2-7:
Spectral Response.
FIGURE 2-10:
Signal-to-Noise and
Distortion vs. Gain (Dithering OFF).
120
Dithering ON
100
80
Dithering OFF
60
40
20
0
32
64
128
256
Oversampling Ratio (OSR)
FIGURE 2-8:
Spurious Free Dynamic
Range vs Oversampling Ratio.
100
95
90
OSR = 256
85
80
OSR = 128
75
70
OSR = 64
65
60
OSR = 32
55
50
1
2
4
8
16 32
GAIN (V/V)
FIGURE 2-11:
Signal-to-Noise and
Distortion vs. Gain (Dithering ON).
120
100
Dithering OFF
80
Dithering ON
60
40
20
0
32
64
128
256
Oversampling Ratio (OSR)
FIGURE 2-9:
Signal-to-Noise and
Distortion vs. Oversampling Ratio.
FIGURE 2-12:
Total Harmonic Distortion
vs. Oversampling Ratio.
DS25048B-page 10
© 2011 Microchip Technology Inc.
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