CS5480 datasheet(60/70 Pages) CIRRUS

60 / 70 page

CS5480

DS980F3

6.6.68 DC Offset for Current (I1DCOFF , I2DCOFF) – Page 16, Address 32, 39

Default = 0x00 0000

DC offset registers I1DCOFF and I2DCOFF are initialized to zero on reset. During DC offset calibration, selected

registers are written with the inverse of the DC offset measured. The application program can also write the

DC offset register values. These are two's complement values in the range of -1.0

value1.0, with the binary

point to the right of the MSB.

6.6.69 DC Offset for Voltage (V1DCOFF , V2DCOFF) – Page 16, Address 34, 41

Default = 0x00 0000

DC offset registers V1DCOFF and V2DCOFF are initialized to zero on reset. During DC offset calibration, select-

ed registers are written with the inverse of the DC offset measured. The application program can also write

the DC offset register values. These are two's complement values in the range of -1.0

value1.0, with the

binary point to the right of the MSB.

6.6.70 Gain for Current (I1GAIN, I2GAIN) – Page 16, Address 33, 40

Default = 0x40 0000 (1.0)

Gain registers I1GAIN and I2GAIN are initialized to 1.0 on reset. During gain calibration, selected registers are

written with the multiplicative inverse of the gain measured. These are unsigned, fixed-point values in the

range of 0

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

6.6.71 Gain for Voltage (V1GAIN, V2GAIN) – Page 16, Address 35, 42

Default = 0x40 0000 (1.0)

Gain registers V1GAIN and V2GAIN are initialized to 1.0 on reset. During gain calibration, selected register are

written with the multiplicative inverse of the gain measured. These are unsigned fixed-point values in the

range of 0

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

6.6.72 Average Active Power Offset (P1OFF, P2OFF) – Page 16, Address 36, 43

Default = 0x00 0000

Average Active Power offset P1OFF (P2OFF) is added to averaged power to yield P1AVG (P2AVG) register re-

sults. It can be used to reduce systematic energy errors. These are two's complement values 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

-(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

.....

2-16

2-17

2-18

2-19

2-20

2-21

2-22

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

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