CDB5560-2
2. QUICK START
Digital Control Signals to ADC
4.096 V Reference
Buffer Enable
Calibrate
ADC Reset
Master/Slave SPI
ADC MCLK Out
Analog Inputs
DC Supply
NOTE: Shaded boxes marked with "OPT. CONFIG." are not necessary for operation in an end user product.
Figure 2. CDB5560-2 Board Layout
The CDB5560-2 evaluation board is designed to interface with a data acquisition system. To connect and
configure the CDB5560-2 perform the following initialization procedure:
1. Verify that the power supplies are off.
2. Connect the power supplies to the CDB5560-2 as shown in Table 1 on page 7.
3. Verify that the power is off to the analog input signal & control signal sources.
4. Connect the analog input signal source to the evaluation board per Table 2 on page 7. .
5. Configure the CDB5560-2 by connecting the control signal sources to the evaluation board as shown in
Table 3 on page 9. Apply logic-level inputs as required to override the resistor pull-ups/pull-downs.
6. Make connections to the SPI™ serial port connector as shown in Table 4 on page 9. The CS5560 ADC
serial port is configured by default to operate in the SSC (Synchronous Self Clocking) mode. Refer to the
CS5560 data sheet for more information on serial communication modes and signal timing.
7. Turn on the power supplies to the evaluation board.
8. Apply power to the signal source.
9. Press the Reset switch on the evaluation board.
10. The CS5560 ADC's SPI™ serial port should now be communicating data.
6
DS790DB2
CIRRUS [ CIRRUS LOGIC ]
