WM8200

Product Preview

w

PP Rev 1.22 March 2002

10

VDAC

DAC

code

0

1023

VREFBF + 0.987(VREFTF-VREFBF)

VREFBF

VREFTF

VREFBF + 0.006(VREFTF-VREFBF)

Figure 5 Clamp DAC Output Voltage versus DAC Register Code Value

COARSE OFFSET

The WM8200 features a coarse offset feature which allows it to accommodate both positive-going

and negative-going input signals when using the DC clamp. This feature is enabled by setting the

PGAOFF register bit to high.

DIAGRAM SHOWING COARSE OFFSET TO BE INSERTED