2

DS726RD1

CRD4525

TABLE OF CONTENTS

1. SYSTEM OVERVIEW ............................................................................................................................. 3

1.1 Power ............................................................................................................................................... 3

1.2 CS4525 Digital TV Amplifier ............................................................................................................ 3

1.3 CS8416 Digital Audio Receiver ........................................................................................................ 3

1.4 System Clocking .............................................................................................................................. 3

1.5 External Data Headers ..................................................................................................................... 3

1.6 Analog Inputs ................................................................................................................................... 4

1.7 Speaker Outputs .............................................................................................................................. 4

1.8 PC Interface ..................................................................................................................................... 4

1.9 Tactile Controls ................................................................................................................................ 4

1.10 CRD4412 Interface ........................................................................................................................ 4

2. PC SOFTWARE CONTROL ................................................................................................................... 6

2.1 CS4525 Main Controls Tab .............................................................................................................. 6

2.2 CS4525 Aux & Filter Controls Tab ................................................................................................... 7

2.3 S/PDIF Input Controls Tab ............................................................................................................... 8

2.4 Register Maps Tab ........................................................................................................................... 9

2.5 Pre-Configured Script Files ............................................................................................................ 10

2.5.1 Analog In ............................................................................................................................... 10

2.5.2 Optical SPDIF In .................................................................................................................... 10

2.5.3 Coaxial SPDIF In ................................................................................................................... 10

3. GROUNDING AND POWER SUPPLY DECOUPLING ........................................................................ 11

3.1 Power Supply Decoupling .............................................................................................................. 11

3.2 Electromagnetic Interference (EMI) ............................................................................................... 11

3.2.1 Suppression of EMI at the Source .........................................................................................11

4. SYSTEM CONNECTIONS & JUMPERS .............................................................................................. 13

5. CRD SCHEMATICS .............................................................................................................................. 14

6. CRD LAYOUT ...................................................................................................................................... 18

7. REVISION HISTORY ............................................................................................................................ 23

LIST OF FIGURES

Figure 1.Speaker Terminal Configuration ................................................................................................... 4

Figure 2.CS4525 Main Controls Tab ........................................................................................................... 6

Figure 3.CS4525 Aux & Filter Controls Tab ................................................................................................ 7

Figure 4.S/PDIF Input Controls Tab ............................................................................................................ 8

Figure 5.Register Maps Tab ........................................................................................................................ 9

Figure 6.CS4525 - Schematic Page 1 ....................................................................................................... 14

Figure 7.Power Outputs - Schematic Page 2 ............................................................................................ 15

Figure 8.S/PDIF Digital Audio Input - Schematic Page 3 .......................................................................... 16

Figure 9.Serial Control / Power - Schematic Page 4 ................................................................................. 17

Figure 10.Silkscreen Top .......................................................................................................................... 18

Figure 11.Topside Copper Layer .............................................................................................................. 19

Figure 12.Inner Copper Layer 1 ................................................................................................................ 20

Figure 13.Inner Copper Layer 2 ................................................................................................................ 21

Figure 14.Bottomside Copper Layer ......................................................................................................... 22

LIST OF TABLES

Table 1. System Connections ................................................................................................................... 13

Table 2. On-Board Tactile Controls ........................................................................................................... 13

Table 3. System Headers .......................................................................................................................... 13