Introduction
1
Introduction
The TPA6166A2 evaluation module (TPA6166A2EVM) is a complete multimedia headset interface with
headphone amplifier, and microphone pre-amp and bias, as well as advanced headset detection circuitry.
All components and the evaluation module are Pb-free.
2
Description
The TPA6166A2EVM consists of a TPA6166A2 device and all necessary components to evaluate it. The
EVM connects to a PC through a USB interface. It is controlled by easy-to-use, intuitive, graphical user
interface (GUI)-based software.
3
Applications
This EVM is used in the following applications:
•
Smart phones and wireless handsets
•
Portable tablets
4
Features
The following features are available through this EVM:
•
Ultra low power, high performance DirectPath™ Class-G headphone amplifier
•
Fully differential Mic pre-amp with variable gain
•
Choice of two Mic Bias voltages: 2 V and 2.6 V
•
Advanced accessory insertion, removal, and type detection
5
Electrical Performance Specification
lists the required power supply specifications.
Table 1. Supply Specifications
Supply voltage range, VDD
1.7 V – 1.9 V
Microphone Supply voltage,
2.4 V – 3.6 V
MICVDD
2
TPA6166A2 Multimedia Headset Interface
SLOU381 – March 2014
Copyright © 2014, Texas Instruments Incorporated
