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User's Guide
SLVUAD9 – December 2014
TS3A227E EVM User's Guide
This document is the EVM user guide for the TS3A227E-EVM which provides an easy evaluation of TI's
autonomous audio jack switch with integrated key-press detection and power off noise removal.
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Contents
1
About this Manual
............................................................................................................
2
Information About Cautions and Warnings
...............................................................................
3
Introduction
...................................................................................................................
3.1
Hardware Items for Operation
.....................................................................................
4
TS3A227E-EVM Connections Overview
.................................................................................
4.1
TS3A227E Design Under Test (DUT)
............................................................................
4.2
Power
.................................................................................................................
4.3
Test Points
...........................................................................................................
4.4
Translator
............................................................................................................
4.5
On-Board MICBIAS Output
........................................................................................
4.6
Key-Press Matrix
....................................................................................................
4.7
External CODEC Interface
.........................................................................................
5
LaunchPad Setup
...........................................................................................................
6
Installing the GUI
...........................................................................................................
7
Using the GUI
...............................................................................................................
7.1
Connecting the LaunchPad to the EVM and PC
..............................................................
7.2
GUI Area Descriptions and Use
.................................................................................
7.3
GUI Operation
.....................................................................................................
7.4
Using the TS3A227E to Develop a Headset
...................................................................
7.5
Power Off Noise Removal Evaluation
..........................................................................
7.6
Slow Plug-In Issue
................................................................................................
8
Board Documentation
......................................................................................................
8.1
Schematic
..........................................................................................................
8.2
Bill of Materials
....................................................................................................
8.3
PCB Layout
........................................................................................................
9
Related Documentation
....................................................................................................
List of Figures
1
TS3A227E-EVM Block Diagram
...........................................................................................
2
Connector to TS3A227E
....................................................................................................
3
Power Connections
.........................................................................................................
4
Breakout Test Point Headers
..............................................................................................
5
Translator
.....................................................................................................................
6
On-Board MICBIAS Output
.................................................................................................
7
Key Press Schematic
........................................................................................................
8
External CODEC Interface
..................................................................................................
9
LaunchPad Header Connections
..........................................................................................
10
LaunchPad J5 Header Connections
......................................................................................
11
LaunchPad LED Indicators
................................................................................................
LaunchPad, Code Composer Studio are trademarks of Texas Instruments.
1
SLVUAD9 – December 2014
TS3A227E EVM User's Guide
Copyright © 2014, Texas Instruments Incorporated