Datasheet

Data Sheet ADE7953
Rev. B | Page 3 of 72
Write Protection .......................................................................... 57
Communication Verification ..................................................... 57
Checksum Register ..................................................................... 58
ADE7953 Registers ......................................................................... 60
ADE7953 Register Descriptions ............................................... 62
Layout Guidelines ........................................................................... 68
Outline Dimensions ........................................................................ 69
Ordering Guide ........................................................................... 69
REVISION HISTORY
11/13—Rev. A to Rev. B
Changes to Features Section ............................................................ 1
Changed Input Clock Frequency from 3.58 MHz (Max) to
3.54 MHz (Min)/3.58 MHz (Typ)/3.62 MHz (Max) .................... 5
Changed t
DAV
from 80 ns (Min) to 80 ns (Max) ............................ 6
Changed t
HD;DAT
(Min) from 0 µs to 0.1 µs ..................................... 7
Changes to EPAD Note..................................................................... 9
Changes to Figure 35 ...................................................................... 16
Changes to Current Channel ADCs Section and Voltage
Channel ADC Section .................................................................... 21
Changes to Figure 45 ...................................................................... 24
Changes to Figure 46 ...................................................................... 25
Changes to Current Channel Gain Adjustment Section ............ 34
Changes to RMS Offsets Section ................................................... 35
Changes to Equation 37 .................................................................. 38
Changes to First Paragraph in No-Load Detection Section ...... 40
Changes to Communication Autodetection Section and
Locking the Communication Interface Section .......................... 51
Changes to I
2
C Interface Section ................................................... 53
Changes to Write Protection Section ............................................ 57
Changes to Figure 76 ...................................................................... 58
Changes to Table 12 ........................................................................ 59
Changes to Table 13 and Table 14 ................................................. 60
Changes to Table 15 ........................................................................ 61
Changes to Table 18 ........................................................................ 62
Added Layout Guidelines Section ................................................. 68
Updated Outline Dimensions ........................................................ 69
11/11—Rev. 0 to Rev. A
Changes to Figure 1 .......................................................................... 1
Changes to Table 1 ............................................................................ 3
Changes to Absolute Maximum Ratings Section ......................... 8
Changes to Table 5 ............................................................................ 9
Replaced Typical Performance Characteristics Section ............. 11
Changes to Figure 35 ...................................................................... 16
Added ADE7953 Power-Up Procedure Section ......................... 18
Changes to Voltage Channel Section ............................................ 19
Changes to Current Channel RMS Calculation Section and
Voltage Channel RMS Calculation Section ................................. 23
Changes to Active Power Calculation Section ............................ 24
Changes to Active Energy Integration Time Under Steady
Load Section .................................................................................... 25
Changes to Reactive Power Calculation Section......................... 28
Changes to Reactive Energy Integration Time Under Steady
Load Section .................................................................................... 29
Changes to Figure 65 ...................................................................... 47
Changes to Write Protection Section ........................................... 57
Replaced Checksum Register Section and added Figure 75 and
Figure 76 ........................................................................................... 58
Changes to Table 12 ........................................................................ 59
Changes to Table 14 ........................................................................ 60
Changes to Table 15 ........................................................................ 61
Replaced Interrupt Enable Section and Interrupt Status
Registers Section ............................................................................. 66
2/11—Revision 0: Initial Version