CDB5571-2 Cirrus Logic Inc, CDB5571-2 Datasheet - Page 8

• Manufacturer Part Number: CDB5571-2
• Description: DEV BOARD FOR CS5571 W/SE INPUT
• Manufacturer: Cirrus Logic Inc

Specifications of CDB5571-2

• Silicon Manufacturer: Cirrus Logic
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: CS5571
• Kit Contents: 100 KSPS, 16-bit Delta-Sigma ADC Evaluation Board
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 598-1276

3.4
3.4.1
The CDB5571 evaluation board hardware comes pre-configured so the only connection required between
it and a data acquisition system is the serial port connection.
The hardware setup is reconfigurable through the hardware control interface connectors. Configure the
evaluation board by setting the appropriate control line to the appropriate logic level.
3.4.2
The CS5571 ADC communications port features an SPI™ serial port. It can be configured for SSC mode
(Master) or SEC mode (Slave) mode as shown in Table 4. Test points are provided to monitor serial com-
munications.
Connections to the serial interface are made according to the following table.
8
Serial Port Communication
Bipolar / Unipolar Mode
Data Conversion Mode
Input Channel Select
Analog Input Buffers
Digital Filter Dither
Serial Port Mode
Data Ready Flag
Digital Section
Hardware Configuration
Function
SPI™ Serial Port Communications
Reset
Serial Data Output
Serial Data Input
Serial Clock
Chip Select
Function
Continuous Conversion = Active (Low)
Sync. Self Clock = Enabled (High)
Data Ready When Set (Low)
Chip Select = Enabled (Low)
Table 4. Hardware Configuration Signals
Buffers = Enabled (High)
Bipolar = Enabled (High)
Dither = Enabled (High)
Reset = Inactive (High)
IN_A = Selected (Low)
Table 5. Serial Interface Connections
Default Level
Label
SCLK
SDO
SDI
CS
Connector
J8, Pin 2
J8, Pin 4
J8, Pin 6
J8, Pin 8
DITHER
SMODE
BP / UP
BUFEN
CONV
Label
MUX
RDY
RST
CS
J6, Pin 6; S1
Connector
J6, Pin 12
J6, Pin 16
J8, Pin 10
J8, Pin 12
J6, Pin 2
J6, Pin 4
J8, Pin 2
Test Point
J1
E23
E24
E25
E26
CDB5571
Test Point
J3, Pin 2
J3, Pin 3
J3, Pin 8
J3, Pin 9
J3, Pin 4
J3, Pin 6
J3, Pin1
DS768DB4
E23
E21