Cirrus Logic CS5490 User Manual
Cs5490 two channel energy measurement ic, Features, Description
Table of contents
Document Outline
- CS5490
- Two Channel Energy Measurement IC
- Features
- Description
- 1. Overview
- 2. Pin Description
- 3. Characteristics & Specifications
- 4. Signal Flow Description
- Figure 6. Signal Flow for V, I, P, and Q Measurements
- 4.1 Analog-to-Digital Converters
- 4.2 Decimation Filters
- 4.3 IIR Filter
- 4.4 Phase Compensation
- 4.5 DC Offset & Gain Correction
- 4.6 High-pass & Phase Matching Filters
- 4.7 Digital Integrators
- 4.8 Low-rate Calculations
- 4.9 Average Active Power Offset
- 4.10 Average Reactive Power Offset
- 5. Functional Description
- 6. Host Commands and Registers
- 6.1 Host Commands
- 6.2 Hardware Registers Summary (Page 0)
- 6.3 Software Registers Summary (Page 16)
- 6.4 Software Registers Summary (Page 17)
- 6.5 Software Registers Summary (Page 18)
- 6.6 Register Descriptions
- 6.6.1 Configuration 0 (Config0) – Page 0, Address 0
- 6.6.2 Configuration 1 (Config1) – Page 0, Address 1
- 6.6.3 Configuration 2 (Config2) – Page 16, Address 0
- 6.6.4 Phase Compensation (PC) – Page 0, Address 5
- 6.6.5 UART Control (SerialCtrl) – Page 0, Address 7
- 6.6.6 Pulse Output Width (PulseWidth) – Page 0, Address 8
- 6.6.7 Pulse Output Rate (PulseRate) – Page 18, Address 28
- 6.6.8 Pulse Output Control (PulseCtrl) – Page 0, Address 9
- 6.6.9 Register Lock Control (RegLock) – Page 0, Address 34
- 6.6.10 Phase Sequence Detection and Control (PSDC) – Page 0, Address 48
- 6.6.11 Checksum of Critical Registers (RegChk) – Page 16, Address 1
- 6.6.12 Interrupt Status (Status0) – Page 0, Address 23
- 6.6.13 Interrupt Mask (Mask) – Page 0, Address 3
- 6.6.14 Chip Status 1 (Status1) – Page 0, Address 24
- 6.6.15 Chip Status 2 (Status2) – Page 0, Address 25
- 6.6.16 Line to Sample Frequency Ratio (Epsilon) – Page 16, Address 49
- 6.6.17 No Load Threshold (LoadMIN) – Page 16, Address 58
- 6.6.18 Sample Count (SampleCount) – Page 16, Address 51
- 6.6.19 Cycle Count (CycleCount) – Page 18, Address 62
- 6.6.20 Filter Settling Time for Conversion Startup (TSETTLE ) – Page 16, Address 57
- 6.6.21 System Gain (SysGAIN ) – Page 16, Address 60
- 6.6.22 Rogowski Coil Integrator Gain (IntGAIN ) – Page 18, Address 43
- 6.6.23 System Time (Time) – Page 16, Address 61
- 6.6.24 Voltage Sag Duration (VSagDUR ) – Page 17, Address 0
- 6.6.25 Voltage Sag Level (VSagLEVEL ) – Page 17, Address 1
- 6.6.26 Current Overcurrent Duration (IOverDUR ) – Page 17, Address 4
- 6.6.27 Current Overcurrent Level (IOverLEVEL ) – Page 17, Address 5
- 6.6.28 Voltage Swell Duration (VSwellDUR ) – Page 18, Address 46
- 6.6.29 Voltage Swell Level (VSwellLEVEL ) – Page 18, Address 47
- 6.6.30 Instantaneous Current (I) – Page 16, Address 2
- 6.6.31 Instantaneous Voltage (V) – Page 16, Address 3
- 6.6.32 Instantaneous Active Power (P) – Page 16, Address 4
- 6.6.33 Active Power (PAVG) – Page 16, Address 5
- 6.6.34 RMS Current (IRMS ) – Page 16, Address 6
- 6.6.35 RMS Voltage (VRMS ) – Page 16, Address 7
- 6.6.36 Reactive Power (QAvg ) – Page 16, Address 14
- 6.6.37 Instantaneous Quadrature Power (Q) – Page 16, Address 15
- 6.6.38 Peak Current (IPEAK) – Page 0, Address 37
- 6.6.39 Peak Voltage (VPEAK) – Page 0, Address 36
- 6.6.40 Apparent Power (S) – Page 16, Address 20
- 6.6.41 Power Factor (PF) – Page 16, Address 21
- 6.6.42 Temperature (T) – Page 16, Address 27
- 6.6.43 Total Active Power (PSUM ) – Page 16, Address 29
- 6.6.44 Total Apparent Power (SSUM ) – Page 16, Address 30
- 6.6.45 Total Reactive Power (QSUM ) – Page 16, Address 31
- 6.6.46 DC Offset for Current (IDCOFF ) – Page 16, Address 32
- 6.6.47 DC Offset for Voltage (VDCOFF ) – Page 16, Address 34
- 6.6.48 Gain for Current (IGAIN ) – Page 16, Address 33
- 6.6.49 Gain for Voltage (VGAIN ) – Page 16, Address 35
- 6.6.50 Average Active Power Offset (POFF ) – Page 16, Address 36
- 6.6.51 Average Reactive Power Offset (QOFF ) – Page 16, Address 38
- 6.6.52 AC Offset for Current (IACOFF ) – Page 16, Address 37
- 6.6.53 Temperature Gain (TGAIN ) – Page 16, Address 54
- 6.6.54 Temperature Offset (TOFF ) – Page 16, Address 55
- 6.6.55 Calibration Scale (Scale) – Page18, Address 63
- 6.6.56 Zero-crossing Number (ZXNUM) – Page 0, Address 55
- 6.6.57 V-channel Zero-crossing Threshold (VZXLEVEL) – Page 18, Address 58
- 6.6.58 I-channel Zero-crossing Threshold (IZXLEVEL) – Page 18, Address 24
- 7. System Calibration
- 8. Basic Application Circuits
- 9. Package Dimensions
- 10. Ordering Information
- 11. Environmental, Manufacturing, & Handling Information
- 12. Revision History