Datasheet

Chapter 1
SBAU174–June 2010
Description
The PCM9211EVM is an evaluation board for the PCM9211, a 216-kHz digital audio interface transceiver
(DIX) with stereo analog-to-digital conversion and routing. This EVM provides all necessary connectors
and circuitry for interfacing to audio test systems and commercial audio equipment.
1.1 Overview
The PCM9211 evaluation module is an easy-to-use, small form-factor system that allows access to all
features of the PCM9211 via a USB interface and a PC running the CodecControl software. The EVM
offers these features:
• PCM9211 device
• Optical S/PDIF input and output
• Coaxial S/PDIF input
• Analog stereo input (3.5-mm audio jack)
• Headers for GPIO and digital audio signal access
• Digital audio MUX (controlled via I
2
C™)
• USB interface
• User interface:
– LEDs
– Buttons
• Control interface test points
• Digital audio interface test points
1.2 Electrostatic Discharge Warning
Many of the components on the PCM9211EVM are susceptible to damage by electrostatic discharge
(ESD). Customers are advised to observe proper ESD handling precautions when unpacking and handling
the EVM, including the use of a grounded wrist strap at an approved ESD workstation.
CAUTION
Failure to observe ESD handling procedures may result in damage to EVM
components.
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SBAU174–June 2010 Description
Copyright © 2010, Texas Instruments Incorporated