Texas Instruments quick start Features, TLV320AIC3107EVM-K Block Diagram

www.ti.com EVM Overview

1 EVM Overview

1.1Features

∙Full-featured evaluation board for the TLV320AIC3107 2-channel audio codec with integrated Class-D amplifier.

∙Modular design for use with a variety of digital signal processor (DSP) and microcontroller interface boards.

∙USB connection to PC provides power, control, and streaming audio data for easy evaluation.

∙Onboard microphone for ADC evaluation

∙Connection points for external control and digital audio signals for quick connection to other circuits/input devices.

The TLV320AIC3107EVM-K is a complete evaluation kit, which includes a universal serial bus (USB)-based motherboard and evaluation software for use with a personal computer (PC) running the Microsoft Windows™ operating system (Win2000 or XP).

1.2Introduction

The TLV320AIC3107EVM is in the Texas Instruments modular EVM form factor, which allows direct evaluation of the device performance and operating characteristics, and eases software development and system prototyping. This EVM is compatible with the 5-6K Interface Evaluation Module (SLAU104) and the HPA-MCUINTERFACE (SLAU106) from Texas Instruments and additional third-party boards which supports the TI Modular EVM format.

The TLV320AIC3107EVM-K is a complete evaluation/demonstration kit, which includes a USB-based motherboard called the USB-MODEVM Interface board and evaluation software for use with a PC running the Microsoft Windows operating systems.

The USB connection from the PC provides power, control, and streaming audio data to the EVM for reduced setup and configuration. The EVM also allows external control signals, audio data, and power for advanced operation, which allows prototyping and connection to the rest of the evaluation/development system.

2EVM Description and Basics

This section provides information on the analog input and output, digital control, power, and general connection of the TLV320AIC3107EVM.

2.1TLV320AIC3107EVM-K Block Diagram

The TLV320AIC3107EVM-K consists of two separate circuit boards, the USB-MODEVM and the TLV320AIC3107EVM. The USB-MODEVM is built around a TAS1020B streaming audio USB controller with an 8051-based core.

The simple diagram of Figure 1 shows how the TLV320AIC3107EVM is connected to the USB-MODEVM. The USB-MODEVM Interface board is intended to be used in USB mode, whereas control of the installed

EVM is accomplished using the onboard USB controller device. Provision is made, however, for driving all the data buses (I2C, I2S, etc.) externally. The source of these signals is controlled by SW2 on the USB-MODEVM. See Table 1 for details on the switch settings.

SLAU261–November 2008 TLV320AIC3107EVM-K 3

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