Cirrus-logic CRD44600-PH-FB Manuale Utente

1Copyright © Cirrus Logic, Inc. 2005(All Rights Reserved)Cirrus Logic, Inc.www.cirrus.comCRD44600-PH-FBStereo 100 W PWM Amplifier Reference DesignFeat

CRD44600-PH-FB10 MAR '05 DS633RD14. ELECTROMAGNETIC INTERFERENCE (EMI)This reference design from Cirrus Logic is a board level solution which is

CRD44600-PH-FBMAR '05 DS633RD1 11and Figure 5. The power supply earth ground was connected to the board chassis groundat a single point.A CD-play

CRD44600-PH-FB12 MAR '05 DS633RD1 Figure 4. EMI Testing SetupFigure 5. EMI Testing Setup, Close-up

CRD44600-PH-FBMAR '05 DS633RD1 13 Figure 6. Radiated EMI Testing Results- 30 MHz to 200 MHzFigure 7. Radiated EMI Testing Results- 200 MHz

CRD44600-PH-FB14 MAR '05 DS633RD1 Figure 8. Conducted Power Line Testing Results

CRD44600-PH-FBMAR '05 DS633RD1 155. CRD44600-PH-FB SCHEMATICS Figure 9. Audio Inputs

CRD44600-PH-FB16 MAR '05 DS633RD1Figure 10. CS44600

CRD44600-PH-FBMAR '05 DS633RD1 17 Figure 11. PSR Feedback

CRD44600-PH-FB18 MAR '05 DS633RD1Figure 12. Left/Right Channels

CRD44600-PH-FBMAR '05 DS633RD1 19 Figure 13. Control Port and Power

CRD44600-PH-FB2 MAR '05 DS633RD1TABLE OF CONTENTS1. SYSTEM OVERVIEW ...

CRD44600-PH-FB20 MAR '05 DS633RD16. CRD44600-PH-FB POWER SUPPLY SCHEMATICS Figure 14. Power Supply

CRD44600-PH-FBMAR '05 DS633RD1 217. CRD44600-PH-FB LAYOUTFigure 15. Silk Screen Top

CRD44600-PH-FB22 MAR '05 DS633RD1Figure 16. Topside Layer

CRD44600-PH-FBMAR '05 DS633RD1 23Figure 17. Bottomside Layer

CRD44600-PH-FB24 MAR '05 DS633RD18. CRD44600-PH-FB BILL OF MATERIALS Item Description QtyReference DesignatorMFG MFG P/N1 CAP 1000pF ±5% 5

CRD44600-PH-FBMAR '05 DS633RD1 25Item Description QtyReference DesignatorMFG MFG P/N39 RES 22.1 OHM 1/10W ±1% 0603 FILM 12 R4 R11 R72 R73 R93 R10

CRD44600-PH-FB26 MAR '05 DS633RD19. TYPICAL PERFORMANCE PLOTSThese performance plots were taken with the CRD44600-PH-FB powered from the describe

CRD44600-PH-FBMAR '05 DS633RD1 27 0.00110.0020.0050.010.020.050.10.20.5%20 20k50 100 200 500 1k 2k 5k 10kHz50 W10 W1 WFigure 19.

CRD44600-PH-FB28 MAR '05 DS633RD10.01100.020.050.10.20.5125%100m 100200m 500m 1 2 5 10 20 50WFigure 20. THD+N vs. Power at 1 kHz

CRD44600-PH-FBMAR '05 DS633RD1 29-140+0-130-120-110-100-90-80-70-60-50-40-30-20-10dBr A20 20k50 100 200 500 1k 2k 5k 10kHzFigure 21. FFT at -60

CRD44600-PH-FBMAR '05 DS633RD1 3Table 1. Bill of Materials...

CRD44600-PH-FB30 MAR '05 DS633RD1-140+0-130-120-110-100-90-80-70-60-50-40-30-20-10dBr A20 20k50 100 200 500 1k 2k 5k 10kHzFigure 22. FFT at -1 d

CRD44600-PH-FBMAR '05 DS633RD1 3110. REVISION HISTORY Release Date ChangesRD1 March 2005 1st ReleaseTable 2. Revision HistoryContacting Cir

CRD44600-PH-FB32 MAR '05 DS633RD1

CRD44600-PH-FB4 MAR '05 DS633RD11. SYSTEM OVERVIEW The CRD44600-PH-FB reference design is an excellent means for evaluating the CS44600 six-chann

CRD44600-PH-FBMAR '05 DS633RD1 5The CS5341 converts analog audio into PCM data for the CS44600. The CS5341 operatesin slave mode and the digital

CRD44600-PH-FB6 MAR '05 DS633RD12. GUI CONTROLThe CRD44600-PH-FB is shipped with a Microsoft Windows® based GUI, which allows controlover the CS8

CRD44600-PH-FBMAR '05 DS633RD1 72.2 Advanced Register Debug TabThe Advanced Register Debug tab provides low level control over the CS44600 and CS

CRD44600-PH-FB8 MAR '05 DS633RD1Figure 3. Advanced Register Debug Tab - CS8416

CRD44600-PH-FBMAR '05 DS633RD1 93. POWER SUPPLY3.1 Power Supply RatingsThe required power supply current rating can be estimated as follows. 95 W