Image Description -  0843-1

An uncaptioned diagram shows the implementation of a digital potentiometer.  The figure shows 
a rectangle inside a larger one.  The smaller rectangle is labeled "Digital Potentiometer".  The 
larger rectangle is labeled "Voltage Trim Circuit".  A line is drawn perpendicular to each side of 
the smaller rectangle and extends out through the larger rectangle.  The two lines on the smaller 
sides of the rectangle are labeled "Signal Out".  The two lines on the larger sides of the rectangle 
are labeled "Serial In" and "Serial Out".  A line labeled "VCC" point to the smaller rectangle.