CDB42L55 Cirrus Logic Inc, CDB42L55 Datasheet - Page 2

• Manufacturer Part Number: CDB42L55
• Description: Eval Bd Ultra Low Power Stereo Codec
• Manufacturer: Cirrus Logic Inc

Specifications of CDB42L55

• Main Purpose: Audio, CODEC
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: CS42L55
• Primary Attributes: 2 Stereo Analog Inputs, Stereo Line and Headphone Outputs, S/PDIF Transmitter and Receiver
• Secondary Attributes: GUI, USB, RS232, I2C Interfaces, USB or External or Battery Power Supply
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1506; CDB-42L55

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TABLE OF CONTENTS
1. QUICK START GUIDE ........................................................................................................................... 4
2. SYSTEM OVERVIEW ............................................................................................................................. 5
3. CONFIGURATION OPTIONS ................................................................................................................. 8
4. SOFTWARE MODE CONTROL .......................................................................................................... . 10
5. SYSTEM CONNECTIONS AND JUMPERS ........................................................................................ 17
6. PERFORMANCE PLOTS ..................................................................................................................... 19
7. CDB42L55 BLOCK DIAGRAM ............................................................................................................ 24
8. CDB42L55 SCHEMATICS ................................................................................................................... 25
9. CDB42L55 LAYOUT ............................................................................................................................ 30
10. REVISION HISTORY .......................................................................................................................... 35
2.1 Control Port and Board Configuration .............................................................................................. 5
2.2 Power ............................................................................................................................................... 5
2.3 Digital Input ....................................................................................................................................... 5
2.4 Digital Output .................................................................................................................................... 6
2.5 FPGA ................................................................................................................................................ 6
2.6 Oscillator ........................................................................................................................................... 7
2.7 CS42L55 Audio CODEC .................................................................................................................. 7
3.1 S/PDIF or PSIA In to Analog Out ...................................................................................................... 8
3.2 Analog In to S/PDIF or PSIA Out ...................................................................................................... 9
4.1 Board Configuration Tab ................................................................................................................ 11
4.2 CODEC Configuration Tab ............................................................................................................. 12
4.3 Analog Input Volume Tab ............................................................................................................... 13
4.4 DSP Engine Tab ............................................................................................................................. 14
4.5 Analog Output Volume Tab ............................................................................................................ 15
4.6 Register Maps Tab ......................................................................................................................... 16
2.3.1 CS8416 S/PDIF Digital Audio Receiver .................................................................................. 5
2.3.2 CS8421 Sample Rate Converter (Tx SRC to CS42L55) ......................................................... 6
2.4.1 CS8406 S/PDIF Digital Audio Transmitter .............................................................................. 6
2.4.2 CS8421 Sample Rate Converter (Rx SRC from CS42L55) .................................................... 6
CDB42L55
DS773DB1