CS5490 datasheet(45/56 Pages) APEX

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CS5490

DS982F2

6.6.33 Active Power (PAVG) – Page 16, Address 5

Default = 0x00 0000

Instantaneous power is averaged over each low-rate interval (SampleCount samples) and then added with

power offset (POFF) to compute active power (PAVG).

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.

6.6.34 RMS Current (IRMS) – Page 16, Address 6

Default = 0x00 0000

IRMS contains the root mean square (RMS) values of I, calculated during each low-rate interval.

This is an unsigned value in the range of 0

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

6.6.35 RMS Voltage (VRMS) – Page 16, Address 7

Default = 0x00 0000

VRMS contains the root mean square (RMS) value of V, calculated during each low-rate interval.

This is an unsigned value in the range of 0

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

6.6.36 Reactive Power (QAvg) – Page 16, Address 14

Default = 0x00 0000

Reactive power (QAVG) is Q averaged over each low-rate interval (SampleCount samples) and corrected by

QOFF.

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.

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

2-1

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

-(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

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CS5490 数据表(PDF) 45 Page - Cirrus Logic

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