User Manual

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