Cirrus-logic CDB5529 Manual de usuario

1Copyright  Cirrus Logic, Inc. 1997(All Rights Reserved)Cirrus Logic, Inc.Crystal Semiconductor Products DivisionP.O. Box 17847, Austin, Texas 78760(

CDB552910 DS246DB1Histogram Window OverviewThe following is a description of the controls and in-dicators associated with the Histogram Window.Many of

CDB5529DS246DB1 11can be used to print a hard copy of that region. Clickon RESTORE when done with the zoom function.Frequency Domain Window (i.e. FFT

CDB552912 DS246DB1Trouble Shooting the Evaluation BoardThis section describes special test modes incorporatedin the microcontroller software to diagno

CDB5529DS246DB1 13Figure 4. Main MenuFigure 5. Input/Output Window

CDB552914 DS246DB1Figure 6. Frequency Domain AnalysisFigure 7. Configuration Menu

CDB5529DS246DB1 15Figure 8. Time Domain AnalysisFigure 9. Histogram Analysis

CDB552916 DS246DB1Figure 10. CDB5529 Component Side Silkscreen

CDB5529DS246DB1 17Figure 11. CDB5529 Component Side (top)

CDB552918 DS246DB1Figure 12. CDB5529 Solder Side (bottom)

• Notes •

CDB55292 DS246DB1PART I: HARDWAREIntroductionThe CDB5529 evaluation board provides a quickmeans of testing the CS5529 Analog-to-DigitalConverter (ADC)

CDB5529DS246DB1 3REF+AIN+AIN-REF-J1+5V / 2.5V AnalogC210.1µFR18301ΩR17301Ω C24700pFHDR5C30.68µFC40.68µF342019HDR1HDR21,LT10192,REF+3,REF-4,VA-1, AGND2

CDB55294 DS246DB1CSR11200 ΩSDIR22200 ΩSDOR33200 ΩSCLKR44200 ΩD1R55200 ΩD0R66200 ΩA1R77200 ΩA0R88200 Ω18Y111.0592MHz19C2333pFC0GC2433pFC0G9+5V Digital4

CDB5529DS246DB1 5Table 1 lists the RS-232 commands used to com-municate between the PC and the microcontroller.To develop additional code to communica

CDB55296 DS246DB1SoftwareThe evaluation board comes with software and anRS-232 cable to link the evaluation board to thePC. The executable software w

CDB5529DS246DB1 7PART II: SOFTWAREInstallation ProcedureTo install the software:1) Turn on the PC.2) At DOS prompt type WIN to Launch Win-dows 3.1TM o

CDB55298 DS246DB1The evaluation software was developed with LabWindows/CVITM, a software development packagefrom National Instruments. More sophistic

CDB5529DS246DB1 9to the microcontroller. The microcontroller in turncollects a conversion from the ADC and returns it tothe PC. The PC stores the co