参数资料
型号: MCP3901A0T-E/SS
厂商: Microchip Technology
文件页数: 2/30页
文件大小: 0K
描述: IC ENERGY METER AFE 2CH 20-SSOP
标准包装: 1,600
位数: 24
通道数: 2
电压 - 电源,模拟: 4.5 V ~ 5.5 V
电压 - 电源,数字: 2.7 V ~ 5.5 V
封装/外壳: 20-SSOP(0.209",5.30mm 宽)
供应商设备封装: 20-SSOP
包装: 带卷 (TR)
MCP3901
DS22192D-page 10
2011 Microchip Technology Inc.
Note:
Unless otherwise indicated, AVDD = 5.0V, DVDD = 5.0V; TA = +25°C, MCLK = 4 MHz; PRESCALE = 1;
OSR = 64; GAIN = 1; Dithering OFF; VIN = -0.5 dBFS @ 60 Hz.
FIGURE 2-7:
Spectral Response.
FIGURE 2-8:
Spectral Response.
FIGURE 2-9:
Spurious Free Dynamic
Range Histogram.
FIGURE 2-10:
Spurious Free Dynamic
Range vs. Oversampling Ratio.
FIGURE 2-11:
Signal-to-Noise and
Distortion and Effective Number of Bits vs.
Oversampling Ratio.
FIGURE 2-12:
Signal-to-Noise and
Distortion vs. Gain.
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
2000
4000
6000
8000
Frequency (Hz)
Am
p
li
tu
d
e
(
d
B
)
fIN = -0.5dBFS @ 60 Hz
fD = 15.6 ksps
16384 Point FFT
OSR = 64
Dithering ON
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
2000
4000
6000
8000
Frequency (Hz)
Am
p
li
tu
d
e
(
d
B
)
f
IN = -60dBFS @ 60 Hz
fD = 15.6 ksps
16384 Point FFT
OSR = 64
Dithering ON
0
2
4
6
8
1
0
1
2
107 107.5 108 108.5 109 109.5 110 110.5 111
Spurious Free Dynamic Range (dB)
Fr
e
q
ue
nc
y
of
O
c
u
ra
nc
e
fIN = 60 Hz
MCLK = 4 MHz
OSR = 256
Dithering On
0
10
20
30
40
50
60
70
80
90
100
110
120
32
64
128
256
Oversampling Ratio (OSR)
S
pur
io
us
Fr
e
D
y
na
mi
c
Ra
n
g
e
(
d
B)
Dithering OFF
Dithering ON
50
55
60
65
70
75
80
85
90
95
100
32
64
128
256
Oversampling Ratio (OSR)
S
INAD
(
d
B)
8
9
10
11
12
13
14
15
16
E
ff
e
c
ti
ve
N
u
m
b
er
o
f
B
it
s
Dithering ON
Dithering OFF
40
45
50
55
60
65
70
75
80
85
90
95
1
2
4
8
16
32
Gain (V/V)
S
INAD
(
d
B
)
OSR = 256 (Dithering ON)
OSR = 32
OSR = 64
OSR = 128 (Dithering ON)
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