WM8973-EV1M
w
Rev 1.0, February 2005
4
INTRODUCTION
The WM8973 is a stereo CODEC for portable audio applications.
This evaluation platform and documentation should be used in conjunction with the latest
version of the WM8973 datasheet. The datasheet gives device functionality information as
well as timing and data format requirements.
This evaluation platform has been designed to allow the user ease of use and give optimum
performance in device measurement as well as providing the user with the ability to listen to
the excellent audio quality offered by the WM8973.
GETTING STARTED
EVALUATION BOARD CHECKLIST
The following items are available from Wolfson:
•
WM8973-EV1B Evaluation Board - 6097_QFN32_EV1_REV1
•
WM8973-EV1S Control Software (download from http://www.wolfsonmicro.com)
•
WM8973-EV1M User Handbook (download from http://www.wolfsonmicro.com)
CUSTOMER REQUIREMENTS
Minimum customer requirements are:
•
D.C. Power supply of +5V
•
D.C. Power supply of +1.8V to +3.6V
•
PC and printer cable (for software control)
Minimum PC spec requirements are:
•
Win95/98/NT/2000/XP
•
486
Processor
•
Approximately 1.5Mb of free hard disk space
DAC Signal Path Requires:
•
Digital coaxial or optical data source
•
One set of active stereo speakers
ADC Signal Path Requires:
•
Analogue coaxial or 3.5mm jack plug signal source
•
Digital coaxial or optical data receiving unit
Analogue Signal Path Requires:
•
Analogue coaxial or 3.5mm jack plug signal source
•
One set of active stereo speakers
Summary of Contents for WM8973-EV1B
Page 1: ...WM8973 EV1M Evaluation Board User Handbook Rev 1 0...
Page 3: ...WM8973 EV1M w Rev 1 0 February 2005 3 EVALUATION SUPPORT 44 IMPORTANT NOTICE 45 ADDRESS 45...
Page 21: ...WM8973 EV1M w Rev 1 0 February 2005 21 SCHEMATIC LAYOUT Figure 13 Functional Diagram...
Page 22: ...WM8973 EV1M w Rev 1 0 February 2005 22 Figure 14 Digital Input...
Page 23: ...WM8973 EV1M w Rev 1 0 February 2005 23 Figure 15 Software Control...
Page 24: ...WM8973 EV1M w Rev 1 0 February 2005 24 Figure 16 Level Shift...
Page 25: ...WM8973 EV1M w Rev 1 0 February 2005 25 Figure 17 Analogue Input...
Page 26: ...WM8973 EV1M w Rev 1 0 February 2005 26 Figure 18 WM8973...
Page 27: ...WM8973 EV1M w Rev 1 0 February 2005 27 Figure 19 Analogue Output...
Page 28: ...WM8973 EV1M w Rev 1 0 February 2005 28 Figure 20 Power...
Page 29: ...WM8973 EV1M w Rev 1 0 February 2005 29 WM8973 EV1B PCB LAYOUT Figure 21 Top Layer Silkscreen...
Page 30: ...WM8973 EV1M w Rev 1 0 February 2005 30 Figure 22 Top Layer...
Page 31: ...WM8973 EV1M w Rev 1 0 February 2005 31 Figure 23 Bottom Layer...
Page 32: ...WM8973 EV1M w Rev 1 0 February 2005 32 Figure 24 Bottom Layer Silkscreen...