Cirrus-logic CDB5461AU Uživatelský manuál

Copyright © Cirrus Logic, Inc. 2006(All Rights Reserved)http://www.cirrus.comCS5461AC8051F320+2.5V referenceUSB Reset CircuirtySERIALEERPOMRESET BUTTO

CDB5461AU10 DS661DB12.3.1 SetupSetup allows user to establish a USB communication connection with CDB5461AU board or select a pre-saved datafile for f

CDB5461AUDS661DB1 11Figure 5. Selecting a Data File for Further Analysis2.3.2 QuitQuit allows the user to exit the evaluation software. Upon selectin

CDB5461AU12 DS661DB12.3.3 MenuExcept for the Start-up window, Menu allows 7 selection options, Setup window, Calibration window, Conversionwindow, Pul

CDB5461AUDS661DB1 13Figure 8. Setup Window2.4.1 Refresh Screen ButtonThe Refresh Screen button will update the contents of the screen by reading all

CDB5461AU14 DS661DB12.4.4 Configuration Register PanelIn the Configuration Register panel, the contents of the Configuration register can be modified

CDB5461AUDS661DB1 152.5 Calibration WindowThe Calibration window is used to display and write to the CS5461A Offset and Gain calibration registers. Th

CDB5461AU16 DS661DB12.5.2.1 Offset Calibrations1. Ground the channel(s) you want to calibrate directly at the channel header(s). J17 and J22 for thevo

CDB5461AUDS661DB1 172.6 Conversion WindowThe Conversion window shown in Figure 10 allows the user to see the results of single and continuous conversi

CDB5461AU18 DS661DB12.6.4 Power Up ButtonThis button is used to send the Power-up/Halt command to the CS5461A. The device will return to normal operat

CDB5461AUDS661DB1 192.7.3 Start ButtonWhen the Start button is pressed, the CDB5461AU will capture pulse rate data according to the values in the Inte

CDB5461AU2 DS661DB1TABLE OF CONTENTS– TABLE OF CONTENTS ...

CDB5461AU20 DS661DB12.8.3 Collect ButtonThis button will collect data from the CS5461A device to be analyzed in the plot area. See the section on Coll

CDB5461AUDS661DB1 212.8.7.6 Cycle CountThe value in Cycle Count field will be written to the CS5461A’s Cycle Count register. Cycle Count determines th

CDB5461AU22 DS661DB12.8.11 Histogram InformationThe following is a description of the indicators associated with Histogram analysis. Histograms can be

CDB5461AUDS661DB1 232.8.11.4 STD_DEVIndicator for the standard deviation of the collected data set. The standard deviation is calculated using the fol

CDB5461AU24 DS661DB12.8.12 Frequency Domain InformationThe following describe the indicators associated with FFT (Fast Fourier Transform) analysis. FF

CDB5461AUDS661DB1 252.8.12.6 SNRIndicator for the signal-to-noise ratio, first 4 harmonics are not included (decibels).2.8.12.7 Fs-PdbIndicator for th

CDB5461AU26 DS661DB12.8.13.4 MinimumIndicator for the minimum value of the collected data set.2.9 EEPROM WindowCDB5461AU has an “Auto-boot” Demo featu

CDB5461AUDS661DB1 27Figure 17. Debug Window

CDB5461AU28 DS661DB13. SCHEMATICS Figure 18. Analog Inputs

CDB5461AUDS661DB1 29Figure 19. CS546x and Socket

CDB5461AUDS661DB1 32.8.13 Time Domain Information ... 252.9 EEPROM Wind

CDB5461AU30 DS661DB1 Figure 20. Microcontroller and USB Interface

CDB5461AUDS661DB1 31Figure 21. Power Supplies

CDB5461AU32 DS661DB14. LAYOUTFigure 22. Top Silk Screen

CDB5461AUDS661DB1 33Figure 23. Topside Layer

CDB5461AU34 DS661DB1Figure 24. Bottomside Layer

CDB5461AUDS661DB1 35Figure 25. Bottom Silk Screen

CDB5461AU36 DS661DB1 Contacting Cirrus Logic SupportFor all product questions and inquiries contact a Cirrus Logic Sales Representative. To find one

CDB5461AU4 DS661DB11. HARDWARE1.1 IntroductionThe CDB5461AU evaluation board provides a quick means of evaluating the CS5461A Power Meter IC. TheCDB54

CDB5461AUDS661DB1 51.2.1 Analog SectionThe CDB5461AU evaluation board provides screw-type terminals (J23, J27) to connect input signals to the voltage

CDB5461AU6 DS661DB11.2.2 Digital SectionThe digital section contains the microcontroller, USB interface, JTAG header, reset circuitry, and an external

CDB5461AUDS661DB1 71.2.3 Power Supply SectionTable 4 illustrates the power supply connections to the evaluation board. The +5 binding post (J3) suppli

CDB5461AU8 DS661DB11.3 Auto-boot ModeWith a jumper connection on J18 (AUTO-BOOT ENABLE), the CS5461A operates in auto-boot mode and theCDB5461AU board

CDB5461AUDS661DB1 92. SOFTWAREThe evaluation board comes with software and an USB cable to link the evaluation board to the PC. The evaluationsoftware