Cirrus Logic CDB42428 - Manual (Page 2)

CDB42428
2
TABLE OF CONTENTS
1. SYSTEM OVERVIEW ............................................................................................................... 4
1.1 CS424xx ............................................................................................................................ 4
1.2 CS8406 .............................................................................................................................. 4
1.3 CS8416 .............................................................................................................................. 4
1.4 CS5361 .............................................................................................................................. 4
1.5 Crystal Oscillator ................................................................................................................ 4
1.6 Analog Input ....................................................................................................................... 4
1.7 Analog Outputs .................................................................................................................. 4
1.8 CPLD ................................................................................................................................. 6
1.9 DB-25 Computer Parallel Port ........................................................................................... 6
1.10 External Control Header .................................................................................................. 6
1.11 DSP Header ..................................................................................................................... 6
1.12 LED Function Indicator .................................................................................................... 6
1.13 Power ............................................................................................................................... 6
1.14 Grounding and Power Supply Decoupling ....................................................................... 6
1.15 External Control Header Signals ...................................................................................... 7
1.16 DSP Header Signals ........................................................................................................ 9
2. INITIAL BOARD SETUP ......................................................................................................... 10
2.1 Power Supplies: ............................................................................................................... 10
2.2 Installing the Software: ..................................................................................................... 10
3. CDB425XX.EXE USER'S GUIDE ........................................................................................... 11
3.1 Main Window ................................................................................................................... 11
3.2 CS42428 Window ............................................................................................................ 11
3.3 Preset Scripts ................................................................................................................... 11
3.4 Quick Start Preset - Analog In to Analog Out .................................................................. 11
3.5 Quick Start Preset - Analog In to Digital Out .................................................................... 11
3.6 Quick Start Guide - Digital In to Analog Out .................................................................... 12
3.7 Quick Start Preset - One-Line Mode (OLM) ..................................................................... 13
4. MUTING SCHEME ................................................................................................................. 14
5. SCHEMATICS AND LAYOUT ........................................................................................... 15
6. ADDENDUM ........................................................................................................................... 32
LIST OF FIGURES
Figure 1. Instrumentation Amplifier Configuration ........................................................................... 5
Figure 2. Output Channel Mute Select .......................................................................................... 14
Figure 3. CS424xx......................................................................................................................... 15
Figure 4. Clocks, Data, and DSP Header...................................................................................... 16
Figure 5. SPDIF............................................................................................................................. 17
Figure 6. CS5361 External ADC #1 .............................................................................................. 18
Figure 7. CS5361 External ADC #2 .............................................................................................. 19
Figure 8. CS424xx Analog Inputs.................................................................................................. 20
Figure 9. Analog Outputs A1 and B1............................................................................................. 21
Figure 10. Analog Outputs A2 and B2........................................................................................... 22
Figure 11. Analog Outputs A3 and B3........................................................................................... 23
Figure 12. Analog Outputs A4 and B4........................................................................................... 24
Figure 13. DB-25, Ext Ctrl Header, Reset ..................................................................................... 25
Figure 14. CPLD............................................................................................................................ 26
Figure 15. Power ........................................................................................................................... 27
Figure 16. CS8416 ........................................................................................................................ 28
Figure 17. Component Placement and Reference Designators .................................................... 29