CDB5581 Cirrus Logic Inc, CDB5581 Datasheet - Page 4

• 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

1.1
The CDB5581 evaluation board has both analog and digital circuit sections. The analog section consists
of the CS5581 ADC, two analog input signal buffers, controlled through a multiplexer, that condition the
signal into the ADC, and a precision 4.096 V reference. The digital section consists of board operation
configuration control signals, reset circuitry, an SPI™ serial port, a jumper connection for initiating ADC
calibration, and an EEPROM for evaluation board identification.
The evaluation board operates from +2.5V, -2.5V, +3.3V and communicates through an SPI™ serial port.
Figure 1 illustrates the CDB5581 block diagram.
4
IN_A
IN_B
Overview
+2.5V GND -2.5V GND +3.3V GND
Analog Inputs
Single-ended
CS3004
Figure 1. CDB5581 Block Diagram
M
U
X
CS5581
4.096 V
16 MHz
VREF
XTAL
Communication/Control
Interface
J6
J7
J8
Master/Slave
Serial Port
Digital Inputs
to ADC
Digital Outputs
from ADC
CDB5581
DS796DB3