Analog Devices ADSP-21369 system manual Analog Audio

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Using EZ-KIT Lite

The ELVIS interface is a LabVIEW-based design and prototype environ- ment for university science and engineering laboratories. The ELVIS interface consists of LabVIEW-based virtual instruments, a multifunction data acquisition (DAQ) device, and a custom-designed bench-top work- station and prototype board. This combination provides a ready-to-use suite of instruments found in most educational laboratories. Because the interface is based on LabVIEW and provides complete data acquisition and prototyping capabilities, the system is ideal for academic coursework that range from lower-division classes to advanced project-based curriculums.

For more information on ELVIS and example demonstration programs, visit National Instruments Web site at www.ni.com.

Analog Audio

The AD1835A is a high-performance, single-chip codec featuring four ste- reo digital-to-analog converters (DAC) for audio output and one stereo analog-to-digital converters (ADC) for audio input. The codec can input and output data with a sample rate of up to 96 kHz on all channels. A 192 kHz sample rate can be used with the one of the DAC channels.

The processor is interfaced with the AD1835A via the DAI port. The DAI interface pins can be configured to transfer serial data from the AD1835A codec in either time-division multiplexed (TDM) or two-wire interface mode (TWI). For more information on the AD1835A connection to the DAI, see “DAI Interface” on page 2-4.

The master input clock (MCLK) for the AD1835A can be generated by the on-board 12.288 MHz oscillator or can be supplied by one of the DAI pins of the processor. Using one of the pins to generate the MCLK, as opposed to the on-board oscillator, allows synchronization of multiple devices in the system. This is done on the EZ-KIT Lite when data is com- ing from the SPDIF receiver and being output through the audio codec. The SPDIF MCLK is routed to the AD1835A MCLK in the processor’s signal

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Contents ADSP-21369 EZ-KIT Lite Evaluation System Manual Trademark and Service Mark Notice Limited WarrantyCopyright Information DisclaimerRegulatory Compliance Page Contents Using EZ-KIT Lite ADSP-21369 EZ-KIT Lite Evaluation System Manual Vii Bill of Materials Schematics Index Preface Page Preface Page Manual Contents Purpose of This ManualIntended Audience What’s New in This Manual Technical or Customer SupportWhat’s New in This Manual Product Information Supported ProcessorsMyAnalog.com Processor Product InformationProduct Information Title Description Related DocumentsEach documentation file type is described as follows Online Technical DocumentationAccessing Documentation From VisualDSP++ Accessing Documentation From WindowsAccessing Documentation From Web VisualDSP++ Documentation Set Printed ManualsHardware Tools Manuals Processor ManualsPreface Data Sheets Notation Conventions Notation ConventionsPreface Xxiv ADSP-21369 EZ-KIT Lite Evaluation System Manual Using EZ-KIT Lite Package Contents Using EZ-KIT Lite Default ConfigurationInstallation and Session Startup Installation and Session StartupUsing EZ-KIT Lite Evaluation License Restrictions Evaluation License RestrictionsExternal Memory Start Address End Address ContentElvis Interface Elvis InterfaceAnalog Audio LEDs and Push Buttons LEDs and Push ButtonsPB1 SW8 FLAG1/~IRQ1 PB2 Example Programs Background Telemetry ChannelExample Programs Sors/resources/crosscore/emulators/index.html. For more Background Telemetry Channel EZ-KIT Lite Hardware Reference System Architecture System ArchitectureEZ-KIT Lite Hardware Reference External PortDAI Interface ADSP-21369 DPI InterfaceFlag Pins Expansion Interface External PLLBoot Mode and Clock Ratio Select Switch SW2 Switch SettingsSwitch Settings Jtag Emulation PortOFF Core Clock Rate Configuration Codec Setup Switch SW3Uart Enable Switch SW5 Electret Microphone Select Switch SW4Push Button Enable Switch SW7 Loop-Back Test Switches SW6 and SW14Elvis Function Generator Configuration Switch SW13 Elvis Oscilloscope Configuration Switch SW1General Purpose LEDs LED1-8 Power LED LED9LED and Push Button Locations Reset LEDs LED10 and LED12Push Buttons SW8-11 USB Monitor LED LED11Board Reset Push Button SW12 JumpersVCO Select Jumper JP1 Jumper Locations 10. VCO Select Jumper JP1 JumpersElvis Voltage Selection Jumper JP3 Elvis Select Jumper JP2Expansion Interface Connectors J1-J3 ConnectorsConnectors Elvis Programmable Flag Jumper JP4Connector Locations Audio Out RCA Connector J5 Audio In RCA Connector P10Power Jack J4 Headphone Out Jack P7Spdif Coax Connectors P8 and P9 RS-232 Connector P1USB Connector P5 DPI Header P3DAI Header P4 Jtag Header P2 Connectors Bill of Materials Description Reference Designator Manufacturer Part Number Bill Of Materials VR5 ADI Switchcraft PJRAN1X1U01 BLK SPST-MOMENTARY SWT013 2A S2ARECT DO-214AA Panasonic ERJ-2GEJ472X DIGI-KEY P1.5KCFCT-ND Yageo ERJ-3RSFR10V Panasonic ECJ-1VC1H101J RED-SMT LED001 LED10,LED12 Panasonic ADSP-21369 EZ-KIT Lite Evaluation System Manual ADSP-21369 EZ-KIT Lite Schematic Devices DSP Memory Analog Audio Audio OUT DAC3 Left Audio in & Headphone OUT Analog DSP IO Current PUSHBUTTONS, LEDS, & Reset Expansion Interface Power Index Index Jtag SPI