CDB5581 Cirrus Logic Inc, CDB5581 Datasheet - Page 5

• Manufacturer Part Number: CDB5581
• Description: BOARD EVAL FOR CS5581 ADC
• Manufacturer: Cirrus Logic Inc
• Type: A/Dr

Specifications of CDB5581

• Number Of Adc's: 1
• Number Of Bits: 16
• Sampling Rate (per Second): 200k
• Data Interface: Serial
• Inputs Per Adc: 2 Single
• Input Range: ±2.048 V
• Power (typ) @ Conditions: 85mW @ 200kSPS
• Voltage Supply Source: Dual ±
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: CS5581
• Product: Data Conversion Development Tools
• Conversion Rate: 200 KSPS
• Resolution: 16 bit
• Maximum Clock Frequency: 16 MHz
• Interface Type: SPI
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): - 2.5 V
• For Use With/related Products: CS5581
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1559

2. QUICK START
The
configure the
DS796DB3
1. Verify that the power supplies are off.
2. Connect the power supplies to the CDB5581 as shown in Table 1 on page 6.
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 6. Verify from Table 4
5. Configure the CDB5581 by connecting the control signal sources to the evaluation board as shown in
6. Make connections to the SPI™ serial port connector as shown in Table 5 on page 8. The CS5581 ADC
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 CS5581 ADC's SPI™ serial port should now be communicating data.
CDB5581
on page 8 that the analog input channel selected is IN_A.
Table 3 on page 7. Apply logic-level inputs as required to override the resistor pull-ups/pull-downs.
serial port is configured by default to operate in the SSC (Synchronous Self Clocking) mode. Refer to the
CS5581 data sheet for more information on serial communication modes and signal timing.
NOTES:
1. Shaded boxes marked with "OPT. CONFIG." are not necessary for operation in an end user product.
2. Calibration function has been removed from the device but still appears on the PCB. J2 must be shorted (grounded)
for proper operation. See Appendix E for details.
CDB5581
evaluation board is designed to interface with a data acquisition system. To connect and
DC Supply
Buffer Enable
perform the following initialization procedure:
ADC Reset
Calibrate
Figure 2. CDB5581 Board Layout
2
Master/Slave SPI
Signals to ADC & Mux
ADC MCLK Out
4.096 V Reference
Analog Inputs
CDB5581
5