Datasheet
1 Preface
1.1 How to Use This Manual
1.2 Related Documentation From Texas Instruments
1.3 Information About Cautions and Warnings
1.4 If You Need Assistance
Preface
www.ti.com
Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with
the PGA2505EVM.
Section 2 provides an overview for the PGA2505 digitally-controlled microphone preamplifier. The
PGA2505EVM block diagram and primary features are also discussed.
Section 3 provides general information regarding EVM handling and unpacking, as well as the absolute
operating conditions for the EVM.
Section 4 provides descriptions of the primary hardware functions, as well as hardware configuration
details for the EVM.
Section 5 provides the information required to install and operate the PGA2505EVM applications software
using a personal computer running the Microsoft
®
Windows
®
9x, 2000, or XP operating systems.
Section 6 includes the EVM electrical schematic, printed circuit board (PCB) layout, and the bill of
materials.
The following documents provide information regarding Texas Instruments integrated circuits used in the
assembly of the PGA2505EVM. These documents are available from the TI web site. The last character of
the literature number corresponds to the document revision, which is current at the time of the writing of
this User’s Guide. Newer revisions may be available from the TI web site at http://www.ti.com/ or call the
Texas Instruments Literature Response Center at (800) 477–8924 or the Product Information Center at
(972) 644–5580. When ordering, identify the document(s) by both title and literature number.
Document Literature Number
PGA2505 Product Data Sheet SBOS396
SN74AHCT541 Product Data Sheet SCLS269O
This book contains caution statements. The information in a caution is provided for your protection. Please
read each caution carefully.
CAUTION
This is an example of a caution statement. A caution statement describes a
situation that could potentially damage your software or equipment.
If you have questions either regarding the use of this evaluation module or the information contained in the
accompanying documentation, please contact the Texas Instruments Product Information Center at (972)
644–5580 or visit the TI Semiconductor Online Technical Support pages at www.ti.com .
PGA2505EVM 2 SBOU078 – June 2009
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