Cirrus-logic CDB5467U Uživatelský manuál

Copyright © Cirrus Logic, Inc. 2007(All Rights Reserved)www.cirrus.comCDB5467UCDB5467U Engineering Board and GUI SoftwareFeatures Voltage and Current

CDB5467U10 DS714DB1If the Data from Disk item in the Setup menu is selected, a file selection window will appear as shown inFigure 5. User can select

CDB5467UDS714DB1 112.3.3 Quit MenuThe Quit menu allows the user to exit the evaluation software. Upon selecting Quit, a message windowappears and quer

CDB5467U12 DS714DB12.4 Setup WindowThe evaluation software provides access to the CS5467's internal registers through the Setup window.See Figure

CDB5467UDS714DB1 132.4.1 Refresh Screen ButtonThe Refresh Screen button will update the contents of the screen by reading all the register values from

CDB5467U14 DS714DB12.4.8 Cycle Count / Pulse Output RegistersThese fields display the values of corresponding register in both hexadecimal and decimal

CDB5467UDS714DB1 152.5.1 Offset / Gain RegisterIn the offset and gain register boxes, the offset and gain registers for all channels are displayed in

CDB5467U16 DS714DB12.6 Conversion WindowThe Conversion Window allows the user to see the results of single and continuous conversions, performdata ave

CDB5467UDS714DB1 172.6.3 Standby / Sleep Mode ButtonsWhen these buttons are pressed, the CS5467 will enter either standby or sleep power saving modes.

CDB5467U18 DS714DB12.7 Pulse Rate WindowThe CS5467 features a pulse-rate energy output. The CDB5467U has the capability to demonstrate thefunctionalit

CDB5467UDS714DB1 192.8 Data Collection WindowThe Data Collection Window (Figure 12) allows the user to collect sample sets of data from the CS5467and

CDB5467U2 DS714DB1TABLE OF CONTENTS1. HARDWARE ...

CDB5467U20 DS714DB12.8.4 Output ButtonThis button will bring up a window in which the user can output the data to a file for later use, print out aplo

CDB5467UDS714DB1 212.8.7.3 FFT WindowThis box allows the user to select the type of windowing algorithm for FFT processing. Windowing algo-rithms incl

CDB5467U22 DS714DB12.8.10 Analyzing DataThe evaluation software provides three types of analysis tests: Time Domain, Frequency Domain, andHistogram. T

CDB5467UDS714DB1 232.8.11.3 MEANIndicates the mean of the data sample set. The mean is calculated using the following formula:2.8.11.4 STD_DEVIndicate

CDB5467U24 DS714DB12.8.12 Frequency Domain InformationThe following describe the indicators associated with FFT (Fast Fourier Transform) analysis. FFT

CDB5467UDS714DB1 252.8.12.6 SNRIndicates for the signal-to-noise ratio, first 4 harmonics are not included (decibels).2.8.12.7 FS-PdbIndicates for the

CDB5467U26 DS714DB12.8.12.12 MINIMUMIndicates for the minimum value of the collected data set.2.9 EEPROM WindowCDB5467U has an "Auto-Boot" d

CDB5467UDS714DB1 272.10 Debug PanelThe Debug panel provides the user a way to access CS5467 registers and send commands to CS5467directly (Figure 18).

CDB5467U28 DS714DB1APPENDIX A. BILL OF MATERIALS CIRRUS LOGICCDB5467U-Z NPb Rev_A.bomBILL OF MATERIAL (Page 1 of 2)Description QtyReference Desig

CDB5467UDS714DB1 29 CIRRUS LOGICCDB5467U-Z NPb Rev_A.bomBILL OF MATERIAL (Page 2 of 2)Description Qty Reference Designator MFG MFG P/N NotesRES 1k OHM

CDB5467UDS714DB1 31. HARDWARE1.1 IntroductionThe CDB5467U evaluation board provides a convenient means of evaluating the CS5467 power mea-surement IC.

CDB5467U30 DS714DB1APPENDIX B. SCHEMATICS Figure 19. Schematic - Analog Inputs

CDB5467UDS714DB1 31 Figure 20. Schematic - CS5467 & Socket

CDB5467U32 DS714DB1 Figure 21. Schematic - Microcontroller & USB Interface

CDB5467UDS714DB1 33 Figure 22. Schematic - Power Supplies

CDB5467U34 DS714DB1APPENDIX C. LAYER PLOTS Figure 23. Top Silkscreen

CDB5467UDS714DB1 35 Figure 24. Top Routing

CDB5467U36 DS714DB1 Figure 25. Bottom Routing

CDB5467UDS714DB1 37 Figure 26. Bottom Silkscreen

CDB5467U38 DS714DB1REVISION HISTORY Revision Date ChangesDB1 OCT 2007 Initial Release.Contacting Cirrus Logic SupportFor all

CDB5467U4 DS714DB11.3 Analog SectionThe CDB5467U evaluation board provides screw-type terminals (J21, J23, J27, & J28) to connect inputsignals to

CDB5467UDS714DB1 5analog ground (AGND). With a jumper on J11, J7, J17, J22, J24, J26, J20 and J19 in position VREF, theinputs are connected to the ref

CDB5467U6 DS714DB11.5 Power Supply SectionTable 4 illustrates the power supply connections to the evaluation board. The +5V binding post (J3) sup-plie

CDB5467UDS714DB1 71.6 Auto-boot ModeWith a jumper connection on J18 (AUTO-BOOT ENABLE), the CS5467 operates in auto-boot mode andthe CDB5467U board op

CDB5467U8 DS714DB12. SOFTWAREThe evaluation board comes with software and an USB cable to link the evaluation board to the PC. Theevaluation software

CDB5467UDS714DB1 92.3.1 Setup MenuSetup allows user to establish a USB communication connection with CDB5467U board or select a pre-viously saved data