DSPIC33FJ128GP706-E/PT Microchip Technology, DSPIC33FJ128GP706-E/PT Datasheet - Page 3

• Manufacturer Part Number: DSPIC33FJ128GP706-E/PT
• Description: IC DSPIC MCU/DSP 128K 64TQFP
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ128GP706-E/PT

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 18x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• For Use With: DM300024 - KIT DEMO DSPICDEM 1.1DV164033 - KIT START EXPLORER 16 MPLAB ICD2MA330012 - MODULE DSPIC33 100P TO 84QFPMA330011 - MODULE DSPIC33 100P TO 100QFPDM300019 - BOARD DEMO DSPICDEM 80L STARTERDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32AC164327 - MODULE SKT FOR 64TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Preface ........................................................................................................................... 7
Chapter 1. Meter Overview
Chapter 2. Hardware Description
Chapter 3. Firmware
Chapter 4. Meter Calibration
© 2009 Microchip Technology Inc.
Introduction............................................................................................................ 7
Document Layout .................................................................................................. 8
Conventions Used in this Guide ............................................................................ 9
Recommended Reading...................................................................................... 10
The Microchip Web Site ...................................................................................... 10
Customer Support ............................................................................................... 10
Document Revision History ................................................................................. 10
1.1 Introduction ................................................................................................... 11
1.2 Meter Design Parameters ............................................................................ 11
1.3 Power Calculations ....................................................................................... 12
1.4 Getting Started ............................................................................................. 13
2.1 Overview ...................................................................................................... 17
2.2 Analog Front End Circuitry ........................................................................... 18
2.3 Analog-To-Digital Conversion ...................................................................... 20
2.4 dspic33f Hardware Connection And Peripheral Usage ................................ 22
2.5 Power Supply ............................................................................................... 25
3.1 Overview ...................................................................................................... 27
3.2 Main Loop ..................................................................................................... 27
3.3 Calculation() - Calculating Electrical Parameters ......................................... 29
3.4 ADC Sampling Scheme For Calculations .................................................... 33
3.5 ReadING A/D Data Of The MCP3909 Device .............................................. 35
3.6 Communication Of UART Interface .............................................................. 37
3.7 Resource Configuration ................................................................................ 37
3.8 Description Of Project Files .......................................................................... 38
4.1 Introduction ................................................................................................... 39
4.2 Current/voltage Calibration .......................................................................... 39
4.3 Apparent Power Calibration ......................................................................... 40
4.4 Phase Lag Calibration ................................................................................. 41
ENERGY METER REFERENCE DESIGN
Table of Contents
MCP3909 / dsPIC33F 3-PHASE
DS51723A-page 3