Datasheet ADE7758 (Analog Devices) - 7

Data Sheet ADE7758 TIMING DIAGRAMS 200µA IOL TO OUTPUT 2.1V PIN CL 50pF 1.6mA IOH
02 0 3- 44 04 Figure 2. Load Circuit for Timing Specifications
t8 CS t1 t t6 3 t t SCLK 7 7 t t 2 4 t5 DIN 1 A6 A5 A4 A3 A2 A1 A0 DB7 DB0 DB7 DB0 COMMAND BYTE MOST SIGNIFICANT BYTE LEAST SIGNIFICANT BYTE
04443-003 Figure 3. Serial Write Timing
CS t1 t13 t9 t10 SCLK 0 DIN A6 A5 A4 A3 A2 A1 A0 t t 11 12 DOUT DB7 DB0 DB7 DB0 COMMAND BYTE MOST SIGNIFICANT BYTE LEAST SIGNIFICANT BYTE
04443-004 Figure 4. Serial Read Timing Rev. E | Page 7 of 72 Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS GENERAL DESCRIPTION SPECIFICATIONS TIMING CHARACTERISTICS TIMING DIAGRAMS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TERMINOLOGY TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION ANTIALIASING FILTER ANALOG INPUTS CURRENT CHANNEL ADC Current Channel Sampling di/dt CURRENT SENSOR AND DIGITAL INTEGRATOR PEAK CURRENT DETECTION Peak Current Detection Using the PEAK Register OVERCURRENT DETECTION INTERRUPT VOLTAGE CHANNEL ADC Voltage Channel Sampling ZERO-CROSSING DETECTION Zero-Crossing Timeout PHASE COMPENSATION PERIOD MEASUREMENT LINE VOLTAGE SAG DETECTION SAG LEVEL SET PEAK VOLTAGE DETECTION Peak Voltage Detection Using the VPEAK Register Overvoltage Detection Interrupt PHASE SEQUENCE DETECTION POWER-SUPPLY MONITOR REFERENCE CIRCUIT TEMPERATURE MEASUREMENT ROOT MEAN SQUARE MEASUREMENT Current RMS Calculation Current RMS Offset Compensation Voltage Channel RMS Calculation Voltage RMS Offset Compensation Voltage RMS Gain Adjust ACTIVE POWER CALCULATION Active Power Gain Calibration Active Power Offset Calibration Sign of Active Power Calculation No-Load Threshold Active Energy Calculation Integration Time Under Steady Load Energy Accumulation Mode Active Power Frequency Output Line Cycle Active Energy Accumulation Mode REACTIVE POWER CALCULATION Reactive Power Gain Calibration Reactive Power Offset Calibration Sign of Reactive Power Calculation Reactive Energy Calculation Integration Time Under Steady Load Energy Accumulation Mode Reactive Power Frequency Output Line Cycle Reactive Energy Accumulation Mode APPARENT POWER CALCULATION Apparent Power Gain Calibration Apparent Power Offset Calibration Apparent Energy Calculation Integration Time Under Steady Load Energy Accumulation Mode Apparent Power Frequency Output Line Cycle Apparent Energy Accumulation Mode ENERGY REGISTERS SCALING WAVEFORM SAMPLING MODE CALIBRATION Calibration Using Pulse Output Gain Calibration Using Pulse Output Example: Watt Gain Calibration of Phase A Using Pulse Output Phase Calibration Using Pulse Output Example: Phase Calibration of Phase A Using Pulse Output Power Offset Calibration Using Pulse Output Example: Offset Calibration of Phase A Using Pulse Output Calibration Using Line Accumulation Gain Calibration Using Line Accumulation Example: Watt Gain Calibration Using Line Accumulation Phase Calibration Using Line Accumulation Example: Phase Calibration Using Line Accumulation Power Offset Calibration Using Line Accumulation Example: Power Offset Calibration Using Line Accumulation Calibration of IRMS and VRMS Offset Example: Calibration of RMS Offsets CHECKSUM REGISTER INTERRUPTS USING THE INTERRUPTS WITH AN MCU INTERRUPT TIMING SERIAL INTERFACE SERIAL WRITE OPERATION SERIAL READ OPERATION ACCESSING THE ON-CHIP REGISTERS REGISTERS COMMUNICATIONS REGISTER OPERATIONAL MODE REGISTER (0x13) MEASUREMENT MODE REGISTER (0x14) WAVEFORM MODE REGISTER (0x15) COMPUTATIONAL MODE REGISTER (0x16) LINE CYCLE ACCUMULATION MODE REGISTER (0x17) INTERRUPT MASK REGISTER (0x18) INTERRUPT STATUS REGISTER (0x19)/RESET INTERRUPT STATUS REGISTER (0x1A) OUTLINE DIMENSIONS ORDERING GUIDE