Cirrus-logic CDB5480U Manual do Utilizador descarregar pdf (Página 25)

CDB5480U

DS893DB5 25

Figure 20. Calibration Window

The Refresh Screen button will update the contents of the screen by reading all the register values from

the part. It is a good idea to press the Refresh Screen button when entering the Calibration window, or

after modifying any registers to reflect the current status of the CS5480.

2.6.1 Save Cal and Load Cal Buttons

Clicking the Save Cal button will save the calibration widow's configuration to a .txt file. Clicking the Load

Cal button will recall a saved configuration and store values into the CS5480.

2.6.2 Offset / Gain Register

In the Offset and Gain Calibration boxes, the offset and gain registers for all channels are displayed in

hexadecimal and decimal formats. These registers can be modified directly by typing the desired value in

the display boxes. There are three types of offset registers: DC offset, AC offset and power offset. The

AC offset registers only affect the RMS register values. The active and reactive power offset registers only

affect the active and reactive power register values, respectively. The DC, AC, and power offset registers

are two's complement numbers whose values range from -1 to +1. The gain register value ranges from 0

to 4.

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Cirrus-logic CDB5480U Manual do Utilizador Página 25