CS5490-ISZR View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS5490-ISZR

Two Channel Energy Measurement IC

Cirrus Logic 

CS5490

6.6.41 Power Factor (PF) – Page 16, Address 21

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

Default = 0x00 0000

Power factor (PF) is calculated by dividing active power (PAVG) by apparent power (S).

The sign is determined by the active power (PAVG) sign.

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.

6.6.42 Temperature (T) – Page 16, Address 27

MSB

LSB

-(27) 26

25

24

23

22

21

20

..... 2-10 2-11 2-12 2-13 2-14 2-15 2-16

Default = 0

T contains results from the on-chip temperature measurement.

By default, T uses the Celsius scale and is a two's complement value in the range of -128.0  value  128.0

(°C), with the binary point to the right of bit 16.

T can be rescaled by the application using the TGAIN and TOFF registers.

6.6.43 Total Active Power (PSUM) – Page 16, Address 29

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

Default = 0

PSUM = 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.

6.6.44 Total Apparent Power (SSUM) – Page 16, Address 30

MSB

LSB

0

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

Default = 0

SSUM = S

This is an unsigned value in the range of 0value1.0, with the binary point to the right of the MSB.

DS982F2

47

Share Link: