CRD44800 Cirrus Logic Inc, CRD44800 Datasheet - Page 2

• Manufacturer Part Number: CRD44800
• Description: Audio Modules & Development Tools Ref Bd 8ch 115dB 192kHz PWM
• Manufacturer: Cirrus Logic Inc

Specifications of CRD44800

• Product: Audio Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TABLE OF CONTENTS
LIST OF FIGURES
LIST OF TABLES
2
1. SCHEMATIC DESCRIPTIONS ................................................................................................. 3
2. OPERATION INFORMATION ................................................................................................... 5
3. SCHEMATICS ......................................................................................................................... 13
4. LAYOUT .................................................................................................................................. 20
5. BILL OF MATERIALS ............................................................................................................ 23
6. TYPICAL PERFORMANCE PLOTS ....................................................................................... 25
7. REVISION HISTORY .............................................................................................................. 29
Figure 1. Speaker Terminal Configuration ...................................................................................... 6
Figure 2. CS44800 Dialog Tab ........................................................................................................ 8
Figure 3. Advanced Register Debug Tab - CS44800...................................................................... 9
Figure 4. Power and Connectors................................................................................................... 13
Figure 5. CS44800 ........................................................................................................................ 14
Figure 6. Left/Right Back Surround Channels............................................................................... 15
Figure 7. Left/Right Surround Channels ........................................................................................ 16
Figure 8. LFE/Center Channels..................................................................................................... 17
Figure 9. Left/Right Channels........................................................................................................ 18
Figure 10. PSR Feedback ............................................................................................................. 19
Figure 11. Silk Screen Top............................................................................................................ 20
Figure 12. Topside Layer .............................................................................................................. 21
Figure 13. Bottomside Layer ......................................................................................................... 22
Figure 14. Bill of Materials ............................................................................................................. 23
Figure 15. Bill of Materials ............................................................................................................. 24
Figure 16. Frequency Response ................................................................................................... 25
Figure 17. THD+N vs. Frequency at 1 W, 10 W, and 20 W .......................................................... 26
Figure 18. THD+N vs. Power at 1 kHz .......................................................................................... 27
Figure 19. FFT at -60 dBFS and 1 kHz ......................................................................................... 28
Table 1. RMS Output Voltage for Given Load Impedance .............................................................. 3
Table 2. Revision History .............................................................................................................. 29
1.1 CRD44800 PWM Amplifier ................................................................................................ 3
1.2 CRD44800 Driver Board .................................................................................................... 3
1.3 Switched Mode Power Supply ........................................................................................... 4
2.1 Power Supply Ratings ...................................................................................................... 10
2.2 Power Supply Decoupling ................................................................................................ 10
2.3 Electromagnetic Interference (EMI) ................................................................................. 11
2.3.1 Suppression of EMI at the Source ...................................................................... 11
CRD44800