Cirrus Logic CDB48500-USB - Manual (Page 3)

CDB48500 USB Evaluation Kit Guide iii
CDB48500
Contents
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Chapter 1. Introduction to the CRD48500-USB Evaluation Kit ......................... 1-1
1.1 CDB48500-USB Kit Contents and Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1.1 CDB48500-USB Kit ........................................................................................................ 1-1
1.1.2 PC Requirements ........................................................................................................... 1-1
1.1.3 Software Requirements.................................................................................................. 1-1
1.1.4 Support Hardware Requirements................................................................................... 1-1
1.1.5 Cabling Requirements.................................................................................................... 1-1
1.2 Introducing the CDB48500-USB Customer Development Kit . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2.1 Identifying CDB48500-USB Components ...................................................................... 1-2
1.2.2 Related Documentation.................................................................................................. 1-4
1.2.2.1 Additional CDB48500 Evaluation Board Information..................................... 1-4
1.2.2.2 CS485xx Family DSP Hardware Information ................................................ 1-4
1.2.2.3 CS485xx Family DSP Software Information.................................................. 1-4
1.2.2.4 DSP Software Utility Information ................................................................... 1-4
1.2.2.5 Audio CODEC Information ............................................................................ 1-4
1.2.2.6 S/PDIF Receiver Information......................................................................... 1-4
Chapter 2. Board Setup and Installing the Evaluation Kit Software ................ 2-1
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1.1 Installing the Evaluation Kit Software ............................................................................. 2-1
2.1.2 Setting up the Evaluation Kit Boards.............................................................................. 2-3
2.1.3 Connecting to a PC ........................................................................................................ 2-4
2.1.4 Running a Stereo PCM Application on CDB48500-USB................................................ 2-6
2.1.5 Downloading Other Applications .................................................................................... 2-6
Chapter 3. CDB48500 System Description ......................................................... 3-1
3.1 CDB48500 System Block Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.1.1 Audio Inputs ................................................................................................................... 3-2
3.1.1.1 Analog Line-level Inputs ................................................................................ 3-2
3.1.1.2 Digital Optical Input ....................................................................................... 3-2
3.1.1.3 Digital Coaxial Input....................................................................................... 3-2
3.1.1.4 Microphone Input........................................................................................... 3-2
3.1.2 Audio Outputs ................................................................................................................ 3-2
3.1.2.1 Analog Line-level Outputs ............................................................................. 3-2
3.1.2.2 Headphone Output ........................................................................................ 3-3
3.1.2.3 Optical Digital Output (PCM) ......................................................................... 3-3
3.1.3 DC Power Input .............................................................................................................. 3-3
3.1.4 Control Header ............................................................................................................... 3-3
3.1.5 On-Board Voltage Selection Headers ............................................................................ 3-3
3.1.6 Audio Input Source Multiplexer Selection Headers ........................................................ 3-4
3.1.7 Cirrus Logic CS485xx Audio DSP .................................................................................. 3-4
3.1.8 CS8416 S/PDIF RX........................................................................................................ 3-5
3.1.9 CS42448 Audio CODEC ................................................................................................ 3-5
3.1.10 Memory ........................................................................................................................ 3-5
3.1.11 Audio Clocking ............................................................................................................. 3-5
3.1.11.1 Clock and Data Flow for up to 8 Channel ADC inputs................................. 3-6
3.1.11.2 Clock and Data Flow for S/PDIF Input......................................................... 3-7
3.1.11.3 Clock and Data Flow for CDB USB Master Card Source ............................ 3-8