Cirrus Logic CS5529 - Manual (Page 27)

CS5529
DS246F5 27
A0, A1 - Logic Outputs (Analog), Pin 5, 6.
The logic states of A0-A1 mimic the states of the D22-D23 bits of the configuration register.
Logic Output 0 = VA-, and Logic Output 1 = VA+.
D0, D1, D2, D3 - Logic Outputs (Digital), Pin 7, 16, 17, 18.
The logic states of D0-D3 mimic the states of the D18-D21 bits of the configuration register.
Logic Output 0 = DGND, and Logic Output 1 = VD+.
Measurement and Reference Inputs
AIN+, AIN- - Differential Analog Input, Pins 3, 4.
Differential input pins into the device.
VREF+, VREF- - Voltage Reference Input, Pins 20, 19.
Fully differential inputs which establish the voltage reference for the on-chip modulator.
Power Supply Connections
VA+ - Positive Analog Power, Pin 2.
Positive analog supply voltage.
VA- - Negative Analog Power, Pin 1.
Negative analog supply voltage.
VD+ - Positive Digital Power, Pin 13.
Positive digital supply voltage (+3.0 V or +5 V).
DGND - Digital Ground, Pin 12.
Digital Ground.