Cirrus-logic CDB5490U Manuel d'utilisateur

Copyright  Cirrus Logic, Inc. 2012(All Rights Reserved)Cirrus Logic, Inc.http://www.cirrus.comCDB5490UCDB5490U Engineering Board and GUI SoftwareFeat

CDB5490U10 DS923DB51.4.2 Interface to MicrocontrollerInterface headers J17 and J19 are provided to allow the CDB5490U to be connected to an external e

CDB5490UDS923DB5 111.5 Power Supply SectionTable 4 illustrates the power supply connections on the evaluation board. The positive analog (VDDA) forthe

CDB5490U12 DS923DB51.6 Typical Sensor ConnectionsThe CDB5490U evaluation board provides connections directly to several types of sensors. Flexible on-

CDB5490UDS923DB5 131.6.2 Current Transformer Power Meter ExampleA slightly more expensive option is to use a current transformer (CT) to connect the A

CDB5490U14 DS923DB51.6.3 Rogowski Coil Power Meter ExampleRogowski coil power meter can be easily connected to the CDB5490U evaluation board. Figure 8

CDB5490UDS923DB5 151.7 Standalone Meter ApplicationThe CDB5490U evaluation board provides a standalone power meter using the CS5490, MCU, and LCD.The

CDB5490U16 DS923DB52. SOFTWAREThe evaluation board comes with software and a USB cable to link the evaluation board to the PC. Theevaluation software

CDB5490UDS923DB5 172.3 Start-up WindowWhen the software is launched, the Start-Up Window is displayed. This window contains informationabout the softw

CDB5490U18 DS923DB52.4 Connect MenuThe Connect menu allows the user to establish a USB communication link with CDB5490U board. Afterselecting the USB

CDB5490UDS923DB5 19Verify that the USB cable is connected properly and that the power supply is on and connected properlyto the CDB5490U. Reset the bo

CDB5490U2 DS923DB5 IMPORTANT SAFETY INSTRUCTIONS Read and follow all safety instructions prior to using this demonstration board. This Engineering Ev

CDB5490U20 DS923DB52.5.1 Setup WindowThe evaluation software provides access to the common CS5490's internal registers through the SetupWindow (s

CDB5490UDS923DB5 212.5.1.1 Refresh Screen ButtonThe Refresh Screen button will update the contents of the screen by reading all the register values fr

CDB5490U22 DS923DB52.5.1.8 Phase CompensationThe Phase Comp Register section is used to make changes to and display the contents of the CS5490'sP

CDB5490UDS923DB5 232.5.1.16 V Sag, V Swell, and I Overcurrent RegistersThe registers for voltage sag, voltage swell, and overcurrent are displayed in

CDB5490U24 DS923DB5The Refresh Screen button will update the contents of the screen by reading all the register values fromthe part. It is recommended

CDB5490UDS923DB5 252.7 Conversion WindowThe Conversion Window can be accessed from the System menu pull-down, Conversion menu item. TheConversion opti

CDB5490U26 DS923DB5status register (Status0, 1, 2) are also displayed. The Conversion Window also provides the total active,apparent and reactive powe

CDB5490UDS923DB5 272.7.5 Line Frequency ResultWhen the AFC bit in the Config2 register is set, the Epsilon register will be calculated automatically b

CDB5490U28 DS923DB52.8.1 Data Collection WindowThe Data Collection Window allows the user to collect sample sets of data from the CS5490 and analyzeth

CDB5490UDS923DB5 292.8.1.4 Output ButtonThe Output button will bring up a window in which the user can output the data to a file for later use, printo

CDB5490UDS923DB5 3TABLE OF CONTENTS1. HARDWARE ...

CDB5490U30 DS923DB52.8.1.8 Configuration WindowThe Configuration window allows the user to set up the data collection and analysis parameters (seeFigu

CDB5490UDS923DB5 312.8.1.8.7 Accept ButtonWhen the Accept button is pressed, the current settings will be saved and the user will return to the DataCo

CDB5490U32 DS923DB52.8.1.11 Histogram InformationThe following is a description of the indicators associated with histogram analysis. Histograms can b

CDB5490UDS923DB5 332.8.1.12 Frequency Domain InformationThe following describe the indicators associated with FFT (Fast-Fourier Transform) analysis. F

CDB5490U34 DS923DB52.8.1.13 Time Domain InformationThe following controls and indicators are associated with time domain analysis. Time Domain data ca

CDB5490UDS923DB5 352.8.2 Data Collection to File WindowThe Data Collection to File window allows the user to collect instantaneous voltage and current

CDB5490U36 DS923DB52.8.3 Setup and Test WindowThe Setup and Test window allows the user a way to access CS5490 registers and send commands tothe CS549

CDB5490UDS923DB5 37APPENDIX A. BILL OF MATERIALS CIRRUS LOGICCDB5490U_REV_B.bomBILL OF MATERIALItem Cirrus P/N Rev Description QtyReference Desig

CDB5490U38 DS923DB5 CIRRUS LOGICCDB5490U_REV_B.bomBILL OF MATERIALItem Cirrus P/N Rev Description QtyReference Designator MFG MFG P/N NotesStatus35 02

CDB5490UDS923DB5 39APPENDIX B. SCHEMATICS REV C202/17/11SCHEM CDB5490U-Z NPbAlan ZHAAlan ZHA3ANALOG INPUTS1CHK BY/DATEINC BY/DATEDESCRIPTIONREV

CDB5490U4 DS923DB5LIST OF FIGURESFigure 1. CDB5490U Assembly Drawing and Default Configuration...

CDB5490U40 DS923DB5 REV C202/17/11SCHEM CDB5490U-Z NPbCS5490+ISOLATIONAlan ZHAAlan ZHA23CHK BY/DATEINC BY/DATEDESCRIPTIONREVECO#SIZE BO

CDB5490UDS923DB5 41 REV C202/17/11SCHEM CDB5490U-Z NPb33Alan ZHAAlan ZHAMCU+LCD+USBCHK BY/DATEINC BY/DATEDESCRIPTIONREVECO#SIZE BOFSHEETPART #DESCRIPT

CDB5490U42 DS923DB5APPENDIX C. LAYER PLOTSFigure 36. Top Silkscreen

CDB5490UDS923DB5 43 Figure 37. Top Routing

CDB5490U44 DS923DB5 Figure 38. Bottom Routing

CDB5490UDS923DB5 45 Figure 39. Solder Paste Mask

CDB5490U46 DS923DB5REVISION HISTORYRevision Date ChangesDB1 APR 2011 Initial Release. DB2 DEC 2011 Updated screen shots and circuit diagrams to align

CDB5490UDS923DB5 51. HARDWARE1.1 IntroductionThe CDB5490U evaluation board provides a convenient means of evaluating the CS5490 energy mea-surement IC

CDB5490U6 DS923DB51.3 Analog SectionThe analog section of the CDB5490U is highly configurable. Onboard signal conditioning options for thevoltage and

CDB5490UDS923DB5 7The default attenuation network provides the following attenuation:With the CS5490 input range of 250mVp at maximum AC line input of

CDB5490U8 DS923DB51.3.2 Current Sensor ConnectionCurrent input options include an external signal (via screw terminals or XLR connectors) or GND. Tabl

CDB5490UDS923DB5 91.4 Digital SectionThe digital section contains the microcontroller, USB interface, LCD, optical isolation, JTAG header, resetcircui