CRD35L01【PDF 2/14 页】REF DESIGN W/BRD FOR CS35L0X

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CRD35L01

TABLE OF CONTENTS

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

1.1 CS35L01 Hybrid Class-D Amplifier .................................................................................................. 4

1.2 Power Supply ................................................................................................................................... 4

1.3 Operational Modes ........................................................................................................................... 4

1.4 Shutdown Control ............................................................................................................................ 4

1.5 Amplifier Gain .................................................................................................................................. 4

1.5.1 Optional Input Gain Adjustment Resistors .............................................................................. 4

1.6 Differential Analog Inputs ................................................................................................................. 5

1.7 Speaker Outputs .............................................................................................................................. 5

1.7.1 Optional Speaker Output EMI Filter Components ................................................................... 5

2. GROUNDING AND POWER SUPPLY DECOUPLING .......................................................................... 6

2.1 Power Supply Decoupling ................................................................................................................ 6

2.2 Electromagnetic Interference (EMI) ................................................................................................. 6

2.2.1 Suppression of EMI at the Source ........................................................................................... 6

3. SYSTEM CONNECTORS AND JUMPERS ............................................................................................ 7

4. CRD SCHEMATIC .................................................................................................................................. 8

4.1 Bill of Materials ................................................................................................................................. 9

5. CRD LAYOUT ....................................................................................................................................... 10

6. REVISION HISTORY ............................................................................................................................ 14

LIST OF FIGURES

Figure 1.Optional Bypass Trace Cut Locations ........................................................................................... 5

Figure 2.CRD35L01-SD Schematic ............................................................................................................ 8

Figure 3.CRD35L01-FSD Schematic .......................................................................................................... 8

Figure 4.CRD35L01-HD Schematic ............................................................................................................ 8

Figure 5.CRD35L01-FHD Schematic .......................................................................................................... 8

Figure 6.CRD35L01-SD Top Side Component Placement ....................................................................... 10

Figure 7.CRD35L01-SD Bottom Side Component Placement .................................................................. 10

Figure 8.CRD35L01-SD Layer 1 Copper .................................................................................................. 10

Figure 9.CRD35L01-SD Layer 2 Copper .................................................................................................. 10

Figure 10.CRD35L01-SD Layer 3 Copper ................................................................................................ 10

Figure 11.CRD35L01-SD Layer 4 Copper ................................................................................................ 10

Figure 12.CRD35L01-FSD Top Side Component Placement ................................................................... 11

Figure 13.CRD35L01-FSD Bottom Side Component Placement .............................................................. 11

Figure 14.CRD35L01-FSD Layer 1 Copper .............................................................................................. 11

Figure 15.CRD35L01-FSD Layer 2 Copper .............................................................................................. 11

Figure 16.CRD35L01-FSD Layer 3 Copper .............................................................................................. 11

Figure 17.CRD35L01-FSD Layer 4 Copper .............................................................................................. 11

Figure 18.CRD35L01-HD Top Side Component Placement ..................................................................... 12

Figure 19.CRD35L01-HD Bottom Side Component Placement ................................................................ 12

Figure 20.CRD35L01-HD Layer 1 Copper ................................................................................................ 12

Figure 21.CRD35L01-HD Layer 2 Copper ................................................................................................ 12

Figure 22.CRD35L01-HD Layer 3 Copper ................................................................................................ 12

Figure 23.CRD35L01-HD Layer 4 Copper ................................................................................................ 12

Figure 24.CRD35L01-FHD Top Side Component Placement ................................................................... 13

Figure 25.CRD35L01-FHD Bottom Side Component Placement ............................................................. 13

Figure 26.CRD35L01-FHD Layer 1 Copper .............................................................................................. 13

Figure 27.CRD35L01-FHD Layer 2 Copper .............................................................................................. 13

Figure 28.CRD35L01-FHD Layer 3 Copper .............................................................................................. 13

Figure 29.CRD35L01-FHD Layer 4 Copper .............................................................................................. 13

2

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