CDB5560-2
1.1
Overview
The CDB5560-2 evaluation board has both analog and digital circuit sections. The analog section consists
of the CS5560 ADC, an analog input signal buffer that conditions the signal into the ADC, and a precision
4.096 V reference. The digital section consists of board operation configuration control signals, reset cir-
cuitry, an SPI™ serial port, a jumper connection for initiating ADC calibration, and an EEPROM for eval-
uation board identification.
The evaluation board operates from +2.5V, -2.5V, +3.3V and communicates through an SPI™ serial port.
Figure 1 illustrates the CDB5560-2 block diagram.
VREF
4.096 V
Master/Slave
Serial Port
Differential
Analog Input
J8
J6
J7
CS3004
INPUT A
Digital Inputs
to ADC
CS5560
Digital Outputs
from ADC
XTAL
16 MHz
Communication/Control
Interface
+2.5V GND -2.5V GND +3.3V GND
Figure 1. CDB5560-2 Block Diagram
DS790DB2
5
CIRRUS [ CIRRUS LOGIC ]
