CDB5532U Cirrus Logic Inc, CDB5532U Datasheet

BOARD EVAL FOR CS5532U ADC

CDB5532U

Manufacturer Part Number
CDB5532U
Description
BOARD EVAL FOR CS5532U ADC
Manufacturer
Cirrus Logic Inc
Datasheets

Specifications of CDB5532U

Number Of Adc's
2
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 @ 3.84kSPS
Voltage Supply Source
Analog and Digital, Dual ±
Operating Temperature
-40°C ~ 85°C
Utilized Ic / Part
CS5532
Description/function
Audio DSPs
Operating Supply Voltage
5 V
Product
Audio Modules
For Use With/related Products
C8051F320
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
598-1159
Features
http://www.cirrus.com
USB Communication with PC
On-board Microcontroller
On-board Voltage Reference
Evaluation Software
Interface Header for External Microcontroller
– Register Setup & Chip Control
– FFT Analysis
– Time Domain Analysis
– Noise Histogram Analysis
CDB5532U Evaluation Board and Software
AIN1+
AIN2+
VREF-
AIN2-
VREF+
AIN1-
AIN2+
AIN1+
AIN1-
AIN2-
CRYSTAL
CS5532
4.9152 MHz
Copyright © Cirrus Logic, Inc. 2007
VREF+
VREF-
SCLK
SDO
SDI
CS
A0
A1
(All Rights Reserved)
Interface Header
Source
Select
VREF
VA-
General Description
The CDB5532U is an inexpensive tool designed to eval-
uate the functionality and performance of the CS5532.
The CS5532 datasheet should be read and consulted
when using the CDB5532U evaluation board.
The evaluation board includes a C8051F320 microcon-
troller with a USB interface. The microcontroller controls
the serial communication between the evaluation board
and the PC via the firmware, enabling quick and easy ac-
cess to all of the CS5532’s registers and functions.
The CDB5532U includes software for data capture, time
domain analysis, histogram analysis, and frequency do-
main analysis.
ORDERING INFORMATION
CDB5532U
VA+
LT1019
GND
Microcontroller
C8051F320
VD+
CDB5532U
+5 V
CONNECTOR
CIRCUITRY
RESET
USB
Evaluation Board
DS807DB1
AUG ‘07

Related parts for CDB5532U

CDB5532U Summary of contents

Page 1

... AIN2- VREF+ VREF- http://www.cirrus.com General Description The CDB5532U is an inexpensive tool designed to eval- uate the functionality and performance of the CS5532. The CS5532 datasheet should be read and consulted when using the CDB5532U evaluation board. The evaluation board includes a C8051F320 microcon- troller with a USB interface. The microcontroller controls ...

Page 2

... SCHEMATICS ......................................................................................................................... 14 4. BOARD LAYOUT ................................................................................................................... 17 REVISION HISTORY ................................................................................................................. 22 LIST OF FIGURES Figure 1. CDB553xU Start-Up Screen ............................................................................................ 6 Figure 2. CDB5532U Setup Window............................................................................................... 7 Figure 3. CDB5532U Channel Setup Register Window .................................................................. 8 Figure 4. CDB5532U Calibration Window ....................................................................................... 9 Figure 5. CDB5532U Data Collection Window.............................................................................. 10 Figure 6. CDB5532U Configuration Window................................................................................. 11 Figure 7. Analog Section ............................................................................................................... 14 Figure 8. Digital Section ................................................................................................................ 15 Figure 9 ...

Page 3

... Evaluation Board Overview The CDB5532U evaluation board is partitioned into two main sections: analog and digital. The analog sec- tion consists of the CS5532 and a precision voltage reference. The digital section consists of the micro- controller, the reset circuitry, and the USB interface. The board also has power supply connections which accommodate all of the various supply options of the CS5532. The evaluation board’ ...

Page 4

... Note that the VA- supply should be connected to ground when powering the CDB5532U from a single +5 V analog supply. VD+ supplies the digital section of the ADC and level shifters. Header J15 allows the VD+ supply to be sourced from the VD+ binding post (J5), the +5 V binding post (J3), or the regulated +3 ...

Page 5

... Installing the USB Drivers 1. Apply power to the CDB5532U. Press and release the Reset switch, S1. 2. Use the included USB cable to connect the CDB5532U to the PC. The PC operating system should automatically launch the Found New Hardware wizard. 3. From the installation wizard, select Install from a list or specific location (Advanced). Select Search for the best driver in these locations ...

Page 6

... The user has two options for the data source: USB and File. If USB is selected, the evalu- ation software will be ready to communicate with the CDB5532U via the USB connection. At this point, the Part menu item is active and the appropriate CS553x device can be selected. If File is selected, the evaluation software will prompt the user to select the appropriate data file. This option allows the user to view previously captured data without having a CDB5532U connected to the PC. See section ‘ ...

Page 7

... Reset Part: When this button is selected, a ‘1’ is written to the RS bit in the configuration register to reset the part. After a reset, the registers will all return to their default values as discussed in the CS5532 datasheet. DS807DB1 Figure 2. CDB5532U Setup Window CDB5532U 7 ...

Page 8

... The currently displayed CSR can be modified by either typing a value directly in the Hexadecimal: box or by changing the decoded values in the individual setup boxes. Figure 3. CDB5532U Channel Setup Register Window Offset / Gain Registers: In the Offset / Gain Registers box, the offset and gain registers for all channels are displayed in hexadecimal ...

Page 9

... Pull down the System Gain box, and select the setup number you want to use to calibrate the channel. 3) When the calibration is complete, the screen will automatically update the offset and gain registers with the new values. DS807DB1 Figure 4. CDB5532U Calibration Window CDB5532U 9 ...

Page 10

... FFT, and histogram plots. The Data Collection window is accessible through the Window menu pressing <F3>. Figure 5. CDB5532U Data Collection Window Time Domain / FFT / Histogram Selector: This menu selects the type of data processing to perform on the collected data and display in the plot area. Refer to the section ‘Analyzing Data” on page 12 for more information ...

Page 11

... Increasing this number may allow the user to view histograms with larger input ranges. Crystal Frequency: The CDB5532U evaluation board comes equipped with a 4.9152 MHz crystal. If the user chooses to replace this with a crystal of a different frequency, the number in this box can be modified to provide more accurate timing and FFT information ...

Page 12

... The process can be terminated by pressing the Stop button, but if this is done, the user should also press the Reset switch on the CDB5532U board to bring the microcontroller out of the collection routines. ...

Page 13

... COUNT: Displays current x-position of the cursor on the time domain display. MAGNITUDE: Displays current y-position of the cursor on the time domain display. MAXIMUM: Indicator for the maximum value of the collected data set. MINIMUM: Indicator for the minimum value of the collected data set. DS807DB1 CDB5532U 13 ...

Page 14

... SCHEMATICS 14 CDB5532U DS807DB1 ...

Page 15

... DS807DB1 CDB5532U 15 ...

Page 16

... CDB5532U DS807DB1 ...

Page 17

... BOARD LAYOUT DS807DB1 CDB5532U 17 ...

Page 18

... CDB5532U DS807DB1 ...

Page 19

... DS807DB1 CDB5532U 19 ...

Page 20

... CDB5532U DS807DB1 ...

Page 21

... DS807DB1 NOTES CDB5532U 21 ...

Page 22

... Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. Windows is a registered trademark of Microsoft Corporation. SPI is a trademark of Motorola, Inc. Microwire is a trademark of National Semiconductor Corporation. IBM is a registered trademark of International Business Machines Corporation. 22 Changes Initial release. CDB5532U DS807DB1 ...

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