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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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MCP39F521 Arkusz danych(PDF) 3 Page - Microchip Technology |
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MCP39F521 Arkusz danych(HTML) 3 Page - Microchip Technology |
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3 / 52 page  2015 Microchip Technology Inc. DS20005442A-page 3 MCP39F521 MCP39F521 Typical Application – Single-Phase, Two-Wire Application Schematic DGND OSCO OSCI DVDD RESET AVDD I1+ I1- V1- V1+ NC NC NC REFIN/OUT+ AGND COMMONA,B NC LOAD +3.3V N L MCP1754 +3.3V AGND DGND + - 33 nF 33 nF 33 nF 1k 1k 1k 499 k 1k 4MHz 22 pF 22 pF 33 nF 0.01 µF 0.47 µ F 470 470 µF 10 1µF 0.1 µF 0.1 µF 0.1 µF AN_IN 2m Leave Floating N.C. MCP9700A (OPTIONAL) +3.3V to MCU SCL SDA SCL DR (OPTIONAL) Connect on PCB EVENT ZCD MCP39F521 499 k to MCU SDA A1 A0 To DVDD or GND, do not float Note: The external sensing components shown here, a 2 mΩ shunt, two 499 kΩ and 1 kΩ resistors for the 1000:1 voltage divider, are specifically chosen to match the default values for the calibration registers defined in Section 6.0, Register Descriptions. By choosing low-tolerance components of these values (e.g. 1% tolerance), measurement accuracy in the 2-3% range can be achieved with zero calibration. See Section 8.0, MCP39F521 Calibration for more information. To DVDD or GND, do not float 3.3 DVDD 2k 3.3 DVDD 2k |
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