CDB4354 Cirrus Logic

CDB4354 Evaluation Board for the CS4354 Features Description Requires Only a Digital Signal Source and a The CDB4354 evaluation board is a dedicated platform +5 V Power Supply for a Complete Digital-to- designed to facilitate the evaluation of the CS4354 24- Analog Converter System bit, stereo D/A converter. Evaluation requires an analog signal analyzer, a digital signal source, and a +5 V pow- Demonstrates Recommended Layout and er supply. Analog line-level outputs are provided via Grounding Arrangements RCA phono jacks. CS8416 Receives S/PDIF, & EIAJ-340- The CS8416 digital audio receiver IC provides the sys- Compatible Digital Audio tem timing necessary to operate the Digital-to-Analog converter and will accept S/PDIF and EIAJ-340-com- Header for External PCM Audio patible audio data. The evaluation board may also be configured to accept external timing and data signals for Single-ended Stereo Analog Outputs operation in a custom user application during system development. Power and S/PDIF Error Indicator LEDs To accommodate various system configurations, sever- al hardware controls and resistor population options are Hardware Controls: +5 V/3.3 V select for VL, provided. Current sense resistors allow for easy power De-emphasis select calculations during system development. Current Sense Resistors for CS4354 Supplies ORDERING INFORMATION (VA and VL) CDB4354 Evaluation Board Power: +5V Input, +3.3V Regulator Indicator LEDs Hardware Controls +5V power CS8416 CS4354 +3.3V power VL Select: Manual De-emphasis VL power 5V or 3.3V Reset Select S/PDIF Error Optical S/PDIF AOUTA Serial CS8416 Input Filter Audio S/PDIF Clocks & Serial Clocks & Coaxial S/PDIF Analog Receiver Data Audio Data Input CS4354 Outputs Selection Clocks & (Headers) Data AOUTB Direct External Filter Input Copyright Cirrus Logic, Inc. 2010 JULY 10 (All Rights Reserved) CDB4354 TABLE OF CONTENTS 1. THE CDB4354 SYSTEM ........................................................................................................................ 3 2. BOARD CONNECTIONS AND SETTINGS ............................................................................................ 5 3. SCHEMATICS AND LAYOUT ........................................................................................................... 7 4. REVISION HISTORY ........................................................................................................................... 11 LIST OF FIGURES Figure 1. CDB4354 Factory Default Jumper Settings ................................................................................. 6 Figure 2. System Block Diagram and Signal Flow ...................................................................................... 7 Figure 3. CS8416 and CS4354 ................................................................................................................... 8 Figure 4. Power ........................................................................................................................................... 9 Figure 5. Silkscreen Top ........................................................................................................................... 10 Figure 6. Top Side ..................................................................................................................................... 10 Figure 6. Top Side ..................................................................................................................................... 10 Figure 7. Bottom Side ............................................................................................................................... 10 LIST OF TABLES Table 1. System Connections .................................................................................................................... 5 Table 2. CDB4354 Jumper Pin Block Settings ............................................................................................ 5 Table 3. LED Information ............................................................................................................................ 5 2 DS895DB1