CS5490 datasheet(49/56 Pages) APEX

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CS5490

DS982F2

6.6.49 Gain for Voltage (VGAIN) – Page 16, Address 35

Default = 1.0

Gain register VGAIN is initialized to 1.0 on reset. During gain calibration, the VGAIN register is written with the

multiplicative inverse of the gain measured. This is an unsigned fixed-point value in the range of

 value  4.0, with the binary point to the right of the second MSB.

6.6.50 Average Active Power Offset (POFF) – Page 16, Address 36

Default = 0

Average Active Power Offset (POFF) is added to the averaged active power to yield PAVG register results. It

can be used to reduce systematic energy errors. This is a two's complement value in the range of

-1.0

 value  1.0, with the binary point to the right of the MSB.

6.6.51 Average Reactive Power Offset (QOFF ) – Page 16, Address 38

Default = 0x00 0000

Average Reactive Power Offset (QOFF) is added to the averaged active power to yield QAVG register results.

It can be used to reduce systematic energy errors. It is a two's complement value in the range of

-1.0

 value 1.0, with the binary point to the right of the MSB.

6.6.52 AC Offset for Current (IACOFF) – Page 16, Address 37

Default = 0

AC offset register IACOFF is initialized to zero on reset. It is used to reduce systematic errors in the RMS re-

sults. This is an unsigned value in the range of 0

 value  1.0, with the binary point to the left of the MSB.

6.6.53 Temperature Gain (TGAIN) – Page 16, Address 54

Default = 0x 06 B716

of 0.0

value256.0, with the binary point to the right of bit 16.

perature Sensor Calibration on page 53 for more information.

MSB

LSB

2-1

2-2

2-3

2-4

2-5

2-6

.....

2-16

2-17

2-18

2-19

2-20

2-21

2-22

MSB

LSB

-(20)2-1

2-2

2-3

2-4

2-5

2-6

2-7

.....

2-17

2-18

2-19

2-20

2-21

2-22

2-23

MSB

LSB

-(20)2-1

2-2

2-3

2-4

2-5

2-6

2-7

.....

2-17

2-18

2-19

2-20

2-21

2-22

2-23

MSB

LSB

2-1

2-2

2-3

2-4

2-5

2-6

2-7

2-8

.....

2-18

2-19

2-20

2-21

2-22

2-23

2-24

MSB

LSB

.....

2-10

2-11

2-12

2-13

2-14

2-15

2-16

CS5490 数据表(PDF) 49 Page - Cirrus Logic

CS5490 数据表(HTML) 49 Page - Cirrus Logic

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CS5490 数据表(PDF) 49 Page - Cirrus Logic

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