CS5480 datasheet(62/70 Pages) CIRRUS

62 / 70 page

CS5480

DS980F3

6.6.77 Calibration Scale (Scale) – Page18, Address 63

Default = 0x4C CCCC (0.6)

The Scale register is used in the gain calibration to set the level of calibrated results of I-channel RMS. During

gain calibration, the IxRMS results register is divided into the Scale register. The quotient is put into the IxGAIN

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

the MSB. Negative values are not used.

6.6.78 V-channel Zero-crossing Threshold (VZXLEVEL) – Page 18, Address 58

Default = 0x10 0000 (0.125)

VZXLEVEL is the level that the peak instantaneous voltage must exceed for the zero-crossing detection to

function. 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. Negative values are not used.

6.6.79 I-channel Zero-crossing Threshold (IZXLEVEL) – Page 18, Address 24

Default = 0x10 0000 (0.125)

IZXLEVEL is the level that the peak instantaneous current must exceed for the zero-crossing detection to func-

tion. 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. Negative values are not used.

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

-(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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