CDB5530U Cirrus Logic Inc, CDB5530U Datasheet - Page 11

• Manufacturer Part Number: CDB5530U
• Description: BOARD EVAL FOR CS5530
• Manufacturer: Cirrus Logic Inc
• Type: A/Dr

Specifications of CDB5530U

• Number Of Adc's: 1
• Number Of Bits: 24
• Sampling Rate (per Second): 3.84k
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±2.5 V
• Power (typ) @ Conditions: 35mW @ 5 V
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: CS5530
• Product: Data Conversion Development Tools
• Resolution: 24 bit
• Maximum Clock Frequency: 4 MHz
• Interface Type: USB
• Supply Voltage (max): 5 V
• Supply Voltage (min): 3.3 V
• For Use With/related Products: CS5530
• 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: 598-1158

are displayed in the Conversion Data box, as well as the Channel (always “1” for CS5530) and Overflow
indicator bits for each conversion. The software will halt the data collection process when the user presses
the Stop button.
Configuration Register: In the Configuration Register box, the contents of the Configuration register are
displayed, and can be modified by typing a hexadecimal value in the Hexadecimal: box, or by changing
any of the values below the Hexadecimal: box to the desired settings.
Note: When changing the value of the reset system bit to “1” (RS, bit 29 in the Configuration register), the part will
be reset, and all registers will return to their default values. It is a good idea to select the Update Registers button
after performing a reset to update the screen with the new register values.
Offset / Gain Registers: In the Offset Registers / Gain Registers box, the contents of the offset and gain
registers are displayed in hexadecimal. These registers can all be modified in the Calibration window,
which is accessed when the user selects the Calibration Window button.
Calibration Window: The Calibration window (Figure 6) permits the user to access the calibration regis-
ters of the CS5530 and also perform system offset or gain calibrations. Prior to performing calibrations
however, the Configuration register should be modified to configure the part for the desired operating
mode (see
should be performed before gain calibration to ensure accurate results. Refer to the CS5530 data sheet
for more details.
System Offset Calibrations:
System Gain Calibrations:
DS742DB1
1) Attach an input signal to the AIN± inputs that you want to calibrate as zero. Note that the grounded
2) Activate the system offset calibration by pressing the System OFFSET button.
3) When the calibration is complete, the screen will automatically update the offset register with the
1) Attach a full-scale input to the AIN± inputs of the CDB5530U.
2) Activate the system gain calibration by pressing the System GAIN button.
3) When the calibration is complete, the screen will automatically update the gain register with the
input must be within the common mode range of the amplifier for proper operation.
new value.
new values.
Section 2.2.4, "Configuration Window" on page 13
Figure 6. CDB5530U Calibration Window
for more details). Note that offset calibration
CDB5530U
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