2

DS687DB2

CDB5343

TABLE OF CONTENTS

1. SYSTEM OVERVIEW ............................................................................................................................. 4

1.1 CS5343 ............................................................................................................................................. 4

2. CS8406 DIGITAL AUDIO TRANSMITTER ............................................................................................4

3. CRYSTAL OSCILLATOR ....................................................................................................................... 4

4. CLOCK & DATA I/O HEADER ............................................................................................................... 4

4.1 Clock & Data Routing ....................................................................................................................... 4

4.1.1 MCLK Source .......................................................................................................................... 4

4.1.2 Sub-Clock Source ................................................................................................................... 4

4.1.3 Data Routing ........................................................................................................................... 5

5. POWER ................................................................................................................................................... 5

6. GROUNDING AND POWER SUPPLY DECOUPLING .......................................................................... 5

7. ANALOG INPUT ..................................................................................................................................... 5

8. CONNECTORS ....................................................................................................................................... 6

9. JUMPER AND SWITCH SETTINGS ...................................................................................................... 6

9.1 Jumper J4 ......................................................................................................................................... 6

9.2 Switch S1 .......................................................................................................................................... 6

9.2.1 CS5343 ................................................................................................................................... 6

9.2.2 CS8406 ................................................................................................................................... 7

9.2.3 MCLK ...................................................................................................................................... 7

9.2.4 SCLK, LRCK ........................................................................................................................... 7

9.2.5 SPEED .................................................................................................................................... 7

9.2.6 MCLK/LRCK Ratio .................................................................................................................. 7

10. RESET .................................................................................................................................................. 8

11. EVALUATING THE CS5344 ................................................................................................................. 8

12. PERFORMANCE PLOTS ..................................................................................................................... 9

13. CDB PERFORMANCE CURVES ....................................................................................................... 12

13.1 Total Harmonic Distortion + Noise (THD+N) ............................................................................... 12

13.2 FFTlm .......................................................................................................................................... 13

14. CDB SCHEMATICS ........................................................................................................................... 14

15. CDB LAYOUT ..................................................................................................................................... 20

16. REVISION HISTORY .......................................................................................................................... 23