CRD-42L51 Cirrus Logic Inc, CRD-42L51 Datasheet - Page 2

• Manufacturer Part Number: CRD-42L51
• Description: Audio Modules & Development Tools Ref Bd Low-volt Stereo CODEC
• Manufacturer: Cirrus Logic Inc

Specifications of CRD-42L51

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

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TABLE OF CONTENTS
LIST OF FIGURES
1. QUICK-START GUIDE ........................................................................................................................... 3
2. FUNCTION & LEVEL DETAILS ............................................................................................................ 4
3. SYSTEM OVERVIEW ............................................................................................................................. 5
4. SYSTEM CONNECTIONS & INTERFACE ............................................................................................. 7
5. CRD42L51 SCHEMATICS ..................................................................................................................... 9
6. CRD42L51 LAYOUT ........................................................................................................................... 13
7. REVISION HISTORY ............................................................................................................................ 19
Figure 1. Block Diagram............................................................................................................................... 8
Figure 2. CS42L51 and Analog I/O (Schematic Sheet 1) ............................................................................ 9
Figure 3. S/PDIF Input (Schematic Sheet 2).............................................................................................. 10
Figure 4. Microcontroller, Pushbuttons and LED Indicators (Schematic Sheet 3) ..................................... 11
Figure 5. DC-DC Converter and AAA Battery Clip (Schematic Sheet 4) ................................................... 12
Figure 6. Silk Screen Top........................................................................................................................... 13
Figure 7. Silk Screen Bottom ..................................................................................................................... 14
Figure 8. Top-Side Layer ........................................................................................................................... 15
Figure 9. Internal Layer (Ground Plane) .................................................................................................... 16
Figure 10. Internal Layer (Power Plane) .................................................................................................... 17
Figure 11. Bottom-Side Layer .................................................................................................................... 18
3.1 Power (U2) ..................................................................................................................................... 5
3.2 Microcontroller (U5) ........................................................................................................................ 5
3.3 CS42L51 Audio CODEC (U1) ........................................................................................................ 5
3.4 CS8416 Digital Audio Receiver (U4) .............................................................................................. 5
3.5 Oscillator (Y1) ................................................................................................................................. 5
3.6 Analog Input ................................................................................................................................... 5
3.7 Analog Outputs ............................................................................................................................... 5
3.8 Switch & Pushbutton ...................................................................................................................... 6
3.9 LEDs ............................................................................................................................................... 6
3.10 Error Indicators ............................................................................................................................. 6
3.11 Layout ........................................................................................................................................... 6
CRD42L51
DS679RD1