CS5464

4

DS682PP1

LIST OF FIGURES

Figure 1. CS5464 Read and Write Timing Diagrams ................................................................. 12

Figure 2. Timing Diagram for E1, E2, and E3 ...................................................................................... 13

Figure 3. Data Measurement Flow Diagram ............................................................................... 14

Figure 4. Data Measurement Flow Diagram ............................................................................... 14

Figure 5. Power Calculation Flow ............................................................................................... 15

Figure 6. Active and Reactive energy pulse outputs .................................................................. 19

Figure 7. Apparent energy pulse outputs.................................................................................... 19

Figure 8. Voltage Channel Sign Pulse outputs ........................................................................... 20

Figure 9. PFMON output to pin E3........................................................................................................ 20

Figure 10. Sag and Fault Detect .................................................................................................20

Figure 11. Oscillator Connection ................................................................................................22

Figure 12. CS5464 Memory Map................................................................................................ 23

Figure 13. Calibration Data Flow ................................................................................................39

Figure 14. System Calibration of Offset ...................................................................................... 39

Figure 15. System Calibration of Gain. ....................................................................................... 40

Figure 16. Example of AC Gain Calibration ................................................................................ 40

Figure 17. Example of AC Gain Calibration ................................................................................ 40

Figure 18. Typical Interface of E2PROM to CS5464 .................................................................. 42

Figure 19. Typical Connection Diagram ..................................................................................... 43

LIST OF TABLES

Table 1. Current Channel PGA Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 2. High-pass Filter Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 3. E2 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 4. E3 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 5. Interrupt Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22