CS5484 datasheet(48/67 Pages) CIRRUS

48 / 67 page

CS5484

DS981F3

6.6.20 Filter Settling Time for Conversion Startup (TSETTLE) – Page 16, Address 57

Default = 0x00 001E (30)

Sets the number of OWR samples that will be used to allow filters to settle at the beginning of Conversion and

Calibration commands.

This is an integer in the range of 0 to 16,777,215 samples.

6.6.21 System Gain (SysGAIN) – Page 16, Address 60

Default = 0x50 0000 (1.25)

System Gain (SysGAIN) is applied to all channels.

By default, SysGAIN = 1.25 but can be finely adjusted to compensate for voltage reference error. It is a two's

complement value in the range of -2.0

 value 2.0, with the binary point to the right of the second MSB. Val-

ues should be kept within 5% of 1.25.

6.6.22 Rogowski Coil Integrator Gain (IntGAIN) – Page 18, Address 43

Default = 0x14 3958

Gain for the Rogowski coil integrator. This must be programmed accordingly for 50Hz and 60Hz (0.158 for

50Hz, 0.1875 for 60Hz).

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.

6.6.23 System Time (Time) – Page 16, Address 61

Default = 0x00 0000

System Time (Time) is measured in OWR samples.

This is an unsigned integer in the range of 0 to 16,777,215 samples. At OWR = 4.0kHz, OWR will overflow

every 1 hour, 9 minutes, 54 seconds. Time can be used by the application to manage real-time events.

MSB

LSB

223

222

221

220

219

218

217

216

.....

MSB

LSB

-(21)20

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

223

222

221

220

219

218

217

216

.....

CS5484 Datasheet(PDF) 48 Page - Cirrus Logic

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