Texas Instruments DEM-PCM2912A EVM manual Evaluation and Measurements

Page 33

Chapter 4

SBAU141–January 2009

Evaluation and Measurements

This chapter discusses how to set up the DEM-PCM2912A EVM for performance evaluation using the Audio Precision SYS-2722®audio analyzer. The process of measuring dynamic characteristics is then presented, along with example characteristic data.

Topic		Page
4.1	Measurements for Dynamic Characteristics	34
4.2	Playback Performance	34
4.3	Recording Performance	36

SBAU141–January 2009	Evaluation and Measurements	33
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Contents Users Guide Submit Documentation Feedback Contents List of Figures List of Tables Submit Documentation Feedback About This Manual How to Use This Manual Read This FirstInformation About Cautions and Warnings Related Documentation From Texas Instruments If You Need Assistance FCC WarningTrademarks Pin Assignments and Terminal Functions DescriptionIntroduction-PCM2912A Key FeaturesTopView Pin Assignments and Terminal FunctionsName DEM-PCM2912A EVM Functional Block Diagram Functional Block DiagramSubmit Documentation Feedback Getting Started DEM-PCM2912A EVM Connectors Block DiagramElectrostatic Discharge Warning Interface and ConnectionsBasic Operating Set-Up-Windows Vista Set-Up GuideWindows Vista Basic Operating Set-Up-Windows VistaVolume and Mute Settings To set the record volume Sampling Frequency To set the ADC sampling frequency Sound and Audio Devices Properties-Audio Tab Windows XP Basic Operating Set-Up-Windows XPVolume Settings Speaker Window for Volume Setting Windows XP Basic Operating Set-Up-Windows XP 12. Sound-Input Tab Mac OS Basic Operating Set-Up-Mac OS13. Sound-Output Tab Mac OS 14. Audio Midi Setting Window Mac OS 15. QuickTime Audio Recording Controls 16. Audio Midi Setting Window Mac OS Submit Documentation Feedback Evaluation and Measurements Measurements for Dynamic CharacteristicsPlayback Performance Measurements for Dynamic CharacteristicsΩHeadphone Output Playback Performance Line Output Playback PerformanceDout Recording PerformanceSchematics Printed Circuit Board Layout Component List Schematic, PCB Layout, and Bill of MaterialsDEM-PCM2912A EVM Schematic SchematicsDEM-PCM2912A EVM Board Layout-Silkscreen Printed Circuit Board LayoutBill of Materials Component ListValue2 FCC Warning Evaluation BOARD/KIT Important NoticeImportant Notice