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User's Guide
SBAU124 – December 2006
PCM4222EVM User's Guide
This document serves as a reference for the PCM4222EVM evaluation module. When
used in conjunction with commonly available audio test equipment, the PCM4222EVM
provides a complete environment for evaluating the functionality and performance of
the PCM4222 integrated circuit. Indirectly, the PCM4222EVM serves as an evaluation
platform for the PCM4220 integrated circuit; the PCM4220 is a subset derivative of the
PCM4222 device.
This document includes information regarding absolute operating conditions,
power-supply requirements, and hardware configuration for the evaluation module. The
electrical schematics and bill of materials are also included for reference purposes.
Throughout this document, the acronym EVM and the phrase evaluation module are
synonymous with the PCM4222EVM.
Contents
1 Introduction .......................................................................................... 3
2 Hardware Configuration ............................................................................ 6
3 Hardware Reference .............................................................................. 16
List of Figures
1 PCM4222 Functional Block Diagram ............................................................ 3
2 Simplified Block Diagram for the PCM4222EVM Evaluation Module ........................ 5
3 Power Supply Jumper Configuration ............................................................. 7
4 PCM4222EVM Schematics, Page 1 of 2 ...................................................... 17
5 PCM4222EVM Schematics, Page 2 of 2 ...................................................... 18
List of Tables
1 Absolute Operating Conditions ................................................................... 6
2 Recommended Power Supply Range............................................................ 7
3 Master Clock Source Selection ................................................................... 9
4 Master Clock Frequencies for Common Output Sampling and Data Rates ................ 9
5 PCM Output Mode Configuration ............................................................... 10
6 PCM Sampling Mode Selection ................................................................. 10
7 Audio Serial Port Header Configuration ........................................................ 11
8 Audio Serial Port Slave/Master Mode Selection .............................................. 11
9 Audio Serial Port Data Format Selection ...................................................... 11
10 TDM Sub-frame Assignment .................................................................... 12
11 PCM Output Word Length Selection ........................................................... 12
12 Digital Decimation Filter Configuration ......................................................... 12
13 Digital High-Pass Filter Switch Operation ...................................................... 13
14 DIT4192 Serial Data and Clock Enable Operation ........................................... 13
15 DIT4192 Master Clock Divider Configuration .................................................. 13
16 DIT4192 Data Format Selection ................................................................ 14
17 DIT4192 Transmission Mode Configuration ................................................... 14
18 DSD Data Port Header Pin Configuration ..................................................... 15
SBAU124 – December 2006 PCM4222EVM User's Guide 1
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