Cirrus-logic CS5508 Manual do Utilizador descarregar pdf (Página 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-)} -

⁄

LSB].

Units are in LSBs.

Unipolar Offset

The deviation of the first code transition from the ideal (

⁄

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 (

⁄

LSB below

the voltage on the AIN- pin.) when in bipolar mode (BP/UP high). Units are in LSBs

CS5505/6/7/8

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CS5505/6/7/8

DS59F7 29

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Cirrus-logic CS5508 Manual do Utilizador Página 29