Document Outline

• CDB47xxx User's Manual
  • Contents
  • Figures
  • Tables
• 1 Kit Contents and Requirements
  • 1.1 CDB47xxx Kit Contents
  • 1.2 Requirements
    • 1.2.1 PC Requirements
    • 1.2.2 Software Requirements
    • 1.2.3 Support Hardware Requirements
    • 1.2.4 Cabling Requirements
  • 1.3 CDB47xxx Main Board System Description
    • 1.3.1 Audio Inputs
      • 1.3.1.1 Analog Line-level Inputs -- Single-Ended (CDB47xxxS only) (AIN1A - AIN5B, AIN6B)
      • 1.3.1.2 Analog Line-level Inputs -- Differential (CDB47xxxD only) (AIN1A - AIN5B, AIN6B)
      • 1.3.1.3 Optical Digital Input (J21)
      • 1.3.1.4 Coaxial Digital Input (J4)
      • 1.3.1.5 Microphone Input (J9)
      • 1.3.1.6 DSP Digital Audio Input (DAI) (J18 or DAI)
    • 1.3.2 Audio Outputs
      • 1.3.2.1 Main Analog Line-level Outputs (CDB47xxxS and CDB47xxxD) (J5-J8, J10-J13, or AOUT_1 - AOUT_8)
      • 1.3.2.2 Optical Digital Output (J1)
      • 1.3.2.3 Coaxial Digital Output (J35)
      • 1.3.2.4 DSP Digital Audio Output (DAO) (J24 or DAO)
    • 1.3.3 DC Power Input (J2)
    • 1.3.4 External Control Header (JP1)
    • 1.3.5 USB Connector (J25)
    • 1.3.6 On-Board Voltage Selection Headers (P1-P3)
    • 1.3.7 Digital Audio Input Source Multiplexer (U1)
    • 1.3.8 CS470xx Audio System-On-a-Chip (ASOC)
    • 1.3.9 C8051 MCU
    • 1.3.10 MCU Input: Push Buttons(S1-S4) and Rotary Encoder (S5)
    • 1.3.11 MCU Output (LCD) (LCD1)
    • 1.3.12 Memory (U17, U16 and U14))
  • 1.4 CDB47xxx Daughtercard System Description
    • 1.4.1 Audio Inputs
      • 1.4.1.1 Analog Line-level Inputs (J3)
      • 1.4.1.2 Digital Audio Inputs (DAI) (J2)
    • 1.4.2 Audio Outputs from the CS470xx DSP
      • 1.4.2.1 Analog Line-level Outputs (J3)
      • 1.4.2.2 Digital Audio Outputs (DAO) (J2)
    • 1.4.3 Control Header (J2)
    • 1.4.4 User Input (S1 and S2)
    • 1.4.5 User LED Output (D1and D2)
  • 1.5 Audio Clocking
    • 1.5.1 Clock and Data Flow for ADC Input
    • 1.5.2 Clock and Data Flow for S/PDIF Input
    • 1.5.3 Clock and Data Flow for DAI Input with Fixed Output Fs
    • 1.5.4 Clock and Data Flow for DAI Input with Matched DAO Fs
  • 1.6 Other Useful Information
    • 1.6.1 Web Sites
    • 1.6.2 DSP Information
    • 1.6.3 Board Information
    • 1.6.4 DSP Software Utility Information
• 2 Introduction to CDB47xxx Kit
  • 2.1 Introducing the CDB47xxx Customer Development Kit
  • 2.2 Identifying CDB47xxx Components
    • 2.2.1 CDB47xxxS Board
      • 2.2.1.1 CDB47xxxS Board (Single-Ended) Components
    • 2.2.2 CDB47xxxD Board
      • 2.2.2.1 CDB47xxxD Board (Differential) Components
    • 2.2.3 CDB47xxx-DCxx Daughtercard
      • 2.2.3.1 CDB47xxx-DC48 Daughtercard Components
• 3 Installation and Setup of Development Board Software
  • 3.1 Installation, Setup, and Running First Application
    • 3.1.1 Evaluation Software Installation
    • 3.1.2 Setting up the CDB47xxx Board with a DVD Player
    • 3.1.3 Connecting to a PC
    • 3.1.4 Running a Stereo PCM SPDIF In, DAC Out Application on CDB47xxx
    • 3.1.5 Running a Stereo ADC In, DAC Out Application on CDB47xxx
• 4 Programming the CDB47xxx Board
  • 4.1 Introduction
  • 4.2 Running the ADC In / DAC Out Example Application
    • 4.2.1 System Block
    • 4.2.2 Selecting / Changing Audio Input Sources
      • 4.2.2.1 Audio In via ADC
      • 4.2.2.2 Audio In via S/PDIF
      • 4.2.2.3 I2S Audio Input
    • 4.2.3 Input Channel Remap
    • 4.2.4 Output Channel Remap
    • 4.2.5 Selecting the Audio Output Configuration
      • 4.2.5.1 Audio Out via DAC
      • 4.2.5.2 Audio Out via S/PDIF Out
      • 4.2.5.3 I2S Audio Input Output
    • 4.2.6 Changing Serial Control Protocol (I2CÔ or SPIÔ) / Flash Type
• 5 Using DSP Composer or Micro-Condenser Application to Create and Load a Flash Image
  • 5.1 Programming a Serial Flash Device for Master or Slave Boot Operations
    • 5.1.1 Using DSP Composer to Create and Load a Flash Image for Master Mode Operations
    • 5.1.2 Using Micro-Condenser to Create and Load a Flash Image for Slave Mode Operations
      • 5.1.2.1 Micro-Condenser Components
      • 5.1.2.2 Micro-Condenser Restrictions/ Conventions
    • 5.1.3 Using Micro-Condenser to Create and Load a Flash Image into the DSP
      • 5.1.3.1 Creating a Flash Image
      • 5.1.3.2 Programming the Flash Image into the Flash Device
• 6 CDB47xxx Schematics
  • 6.1 Introduction
  • 6.2 CDB47xxS Single-Ended Schematic Descriptions
    • 6.2.1 CDB47xxxS Block Diagram
    • 6.2.2 Daughtercard Connectors
    • 6.2.3 Digital Audio and Control Connectors
    • 6.2.4 Memory
    • 6.2.5 Microphone Preamplifier
    • 6.2.6 Power
    • 6.2.7 Input Filters
    • 6.2.8 Output Filters
    • 6.2.9 MCU Block Diagram
    • 6.2.10 MCU
    • 6.2.11 User Interface Devices
  • 6.3 CDB47xxD Differential Schematic Descriptions
    • 6.3.1 CDB47xxxD Block Diagram
    • 6.3.2 Daughtercard Connectors
    • 6.3.3 Digital Audio and Control Connectors
    • 6.3.4 Memory
    • 6.3.5 Microphone Preamplifier
    • 6.3.6 Power
    • 6.3.7 Input Filters
    • 6.3.8 Output Filters
    • 6.3.9 MCU Block Diagram
    • 6.3.10 MCU
    • 6.3.11 User Interface Devices
  • 6.4 CDB47xxx-DC48 Daughtercard Schematic
    • 6.4.1 CDB47xxx-DC48 Block Diagram
    • 6.4.2 CDB47xxx-DC48 Schematic
  • 6.5 Obtaining Schematic Updates
• 7 Troubleshooting
  • 7.1 Troubleshooting Guide
    • 7.1.1 Power LEDs
    • 7.1.2 Board not Recognized by PC
    • 7.1.3 Audio is not Heard
• Revision History