90E21 datasheet(33/57 Pages) IDT

33 / 57 page

90E21/22/23/24

SINGLE-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC

January 10, 2012

IgainL

L Line Current rms Gain

IgainN

N Line Current rms Gain

Uoffset

Voltage Offset

Address: 32H

Type: Read/Write

Default Value: 7A13H

Bit

Name

Description

15 - 0

IgainL[15:0]

L Line Current rms Gain, For details, please refer to IDT application note AN-641.

Address: 33H

Type: Read/Write

Default Value: 7530H

Bit

Name

Description

15 - 0

IgainN[15:0]

N Line Current rms Gain. For details, please refer to IDT application note AN-641.

Address: 34H

Type: Read/Write

Default Value: 0000H

Bit

Name

Description

15 - 0

Uoffset[15:0]

Voltage offset. For calculation method, please refer to IDT application note AN-641.

IgainL15

IgainL14

IgainL13

IgainL12

IgainL11

IgainL10

IgainL9

IgainL8

765

432

IgainL7

IgainL6

IgainL5

IgainL4

IgainL3

IgainL2

IgainL1

IgainL0

IgainN15

IgainN14

IgainN13

IgainN12

IgainN11

IgainN10

IgainN9

IgainN8

765

432

IgainN7

IgainN6

IgainN5

IgainN4

IgainN3

IgainN2

IgainN1

IgainN0

Uoffset15

Uoffset14

Uoffset13

Uoffset12

Uoffset11

Uoffset10

Uoffset9

Uoffset8

765

432

Uoffset7

Uoffset6

Uoffset5

Uoffset4

Uoffset3

Uoffset2

Uoffset1

Uoffset0

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