Texas Instruments DEM-PCM2912A EVM manual Description, Pin Assignments and Terminal Functions

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Chapter 1

SBAU141–January 2009

Description

The DEM-PCM2912A EVM is a complete evaluation platform for the 16-bit, mono microphone input and stereo headphone output PCM2912A bus-powered audio codec with a USB interface. All necessary connectors and circuitry are provided for interfacing to audio test systems and commercial audio equipment.

A USB connector is mounted on the DEM-PCM2912A EVM. Stereo audio output and mono audio input are available on two stereo mini-jacks.

Topic		Page
1.1	Introduction—PCM2912A	10
1.2	Pin Assignments and Terminal Functions	11
1.3	Functional Block Diagram	13

SBAU141–January 2009	Description	9
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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