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MCP3909-E/SS 数据表(PDF) 13 Page - Microchip Technology

部件名 MCP3909-E/SS
功能描述  Energy Metering IC with SPI Interface and Active Power Pulse Output
PDF  44 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCP3909-E/SS 数据表(HTML) 13 Page - Microchip Technology

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 2006-2012 Microchip Technology Inc.
DS22025C-page 13
MCP3909
Note: Unless otherwise specified, DVDD, AVDD = 5V; AGND, DGND = 0V; VREF = Internal, HPF = 1 (AC mode),
MCLK = 3.58 MHz, CH1 input = 660 mVP-P at 50 Hz, CH0 amplitude sweeps at 50 Hz.
FIGURE 2-23:
Active Power Measurement
Error with External VREF (G = 2, PF = 0.5).
FIGURE 2-24:
Active Power Measurement
Error with External VREF (G = 8, PF = 1).
FIGURE 2-25:
Active Power Measurement
Error with External VREF (G = 8, PF = 0.5).
FIGURE 2-26:
Active Power Measurement
Error with External VREF (G = 16, PF = 1).
FIGURE 2-27:
Active Power Measurement
Error with External VREF (G =16, PF = 0.5).
FIGURE 2-28:
Signal-to-Noise and
Distortion Ratio vs. Input Signal Amplitude
(G = 1).
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0.0001
0.0010
0.0100
0.1000
1.0000
CH1 Vp-p Amplitude (V)
+85°C
+25°C
-40°C
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0.0000
0.0001
0.0010
0.0100
0.1000
CH1 Vp-p Amplitude (V)
+85°C
+25°C
-40°C
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0.0000
0.0001
0.0010
0.0100
0.1000
CH1 Vp-p Amplitude (V)
+85°C
+25°C
-40°C
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0.0000
0.0001
0.0010
0.0100
0.1000
CH1 Vp-p Amplitude (V)
+85°C
+25°C
- 40°C
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0.0000
0.0001
0.0010
0.0100
0.1000
CH1 Vp-p Amplitude (V)
+85°C
+25°C
-40°C
0
10
20
30
40
50
60
70
80
90
100
0.0001
0.0010
0.0100
0.1000
1.0000
CH0 Vp-p Amplitude (V)
0
10
20
30
40
50
60
70
80
90
100
SINAD (dBFS)
SINAD(dB)



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