Cirrus Logic CS5508 - Manual (Page 29)

VD+ - Positive Digital Power, Pin 17 (20).
Positive digital supply voltage. Nominally +5 volts or 3.3 volts.
DGND - Digital Ground, Pin 16 (19).
Digital Ground.
Other
NC - No Connection, Pin 9.
Pin should be left floating.
SPECIFICATION DEFINITIONS
Linearity Error
The deviation of a code from a straight line which connects the two endpoints of the A/D
Converter transfer function. One endpoint is located 1/2 LSB below the first code transition
and the other endpoint is located 1/2 LSB beyond the code transition to all ones. Units in
percent of full-scale.
Differential Nonlinearity
The deviation of a code’s width from the ideal width. Units in LSBs.
Full Scale Error
The deviation of the last code transition from the ideal [{(VREF+) - (VREF-)} - 3 ⁄
2
LSB].
Units are in LSBs.
Unipolar Offset
The deviation of the first code transition from the ideal ( 1 ⁄
2
LSB above the voltage on the AIN-
pin.) when in unipolar mode (BP/UP low). Units are in LSBs.
Bipolar Offset
The deviation of the mid-scale transition (011...111 to 100...000) from the ideal (
1 ⁄
2
LSB below
the voltage on the AIN- pin.) when in bipolar mode (BP/UP high). Units are in LSBs
CS5505/6/7/8
DS59F7 29
CS5505/6/7/8
DS59F7 29