2

DS684DB1

CDB4352

TABLE OF CONTENTS

1. CDB4352 SYSTEM OVERVIEW ............................................................................................................ 4

2. CS4352 DIGITAL-TO-ANALOG CONVERTER ..................................................................................... 4

3. CS8416 DIGITAL AUDIO RECEIVER .................................................................................................... 4

4. INPUT FOR CLOCKS AND DATA ......................................................................................................... 4

5. POWER SUPPLY CIRCUITRY ............................................................................................................... 4

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

7. HARDWARE CONTROL ........................................................................................................................ 5

8. ANALOG OUTPUT FILTERING ............................................................................................................. 5

9. PERFORMANCE PLOTS ....................................................................................................................... 6

10. DESIGN NOTE ................................................................................................................................... 11

11. SCHEMATICS

.......................................................................... 12

12. REVISION HISTORY ......................................................................................................................... 21

LIST OF FIGURES

Figure 1. FFT (48 kHz, 0 dB) ...................................................................................................................... 6

Figure 2. FFT (48 kHz, -60 dB) ................................................................................................................... 6

Figure 3. FFT (48 kHz, No Input) ................................................................................................................ 6

Figure 4. FFT (48 kHz Out-of-Band, No Input) ............................................................................................ 6

Figure 5. 48 kHz, THD+N vs. Input Freq ..................................................................................................... 6

Figure 6. 48 kHz, THD+N vs. Level ............................................................................................................ 6

Figure 7. 48 kHz, Fade-to-Noise Linearity .................................................................................................. 7

Figure 8. 48 kHz, Frequency Response ...................................................................................................... 7

Figure 9. 48 kHz, Crosstalk ......................................................................................................................... 7

Figure 10. 48 kHz, Impulse Response ........................................................................................................ 7

Figure 11. FFT (96 kHz, 0 dB) .................................................................................................................... 7

Figure 12. FFT (96 kHz, -60 dB) ................................................................................................................. 7

Figure 13. FFT (96 kHz, No Input) .............................................................................................................. 8

Figure 14. FFT (96 kHz Out-of-Band, No Input) .......................................................................................... 8

Figure 15. 96 kHz, THD+N vs. Input Freq ................................................................................................... 8

Figure 16. 96 kHz, THD+N vs. Level .......................................................................................................... 8

Figure 17. 96 kHz, Fade-to-Noise Linearity ................................................................................................ 8

Figure 18. 96 kHz, Frequency Response .................................................................................................... 8

Figure 19. 96 kHz, Crosstalk ....................................................................................................................... 9

Figure 20. 96 kHz, Impulse Response ........................................................................................................ 9

Figure 21. FFT (192 kHz, 0 dB) .................................................................................................................. 9

Figure 22. FFT (192 kHz, -60 dB) ............................................................................................................... 9

Figure 23. FFT (192 kHz, No Input) ............................................................................................................ 9

Figure 24. FFT (192 kHz Out-of-Band, No Input) ........................................................................................ 9

Figure 25. 192 kHz, THD+N vs. Input Freq ............................................................................................... 10

Figure 26. 192 kHz, THD+N vs. Level ...................................................................................................... 10

Figure 27. 192 kHz, Fade-to-Noise Linearity ............................................................................................ 10

Figure 28. 192 kHz, Frequency Response ................................................................................................ 10

Figure 29. 192 kHz, Crosstalk ................................................................................................................... 10

Figure 30. 192 kHz, Impulse Response .................................................................................................... 10

Figure 31. System Block Diagram and Signal Flow .................................................................................. 12

Figure 32. CS4352 .................................................................................................................................... 13

Figure 33. Analog Outputs ........................................................................................................................ 14

Figure 34. PCM Input Headers ................................................................................................................. 15

Figure 35. CS8416 S/PDIF Input .............................................................................................................. 16

Figure 36. Power ....................................................................................................................................... 17

Figure 37. Silkscreen Top ......................................................................................................................... 18