TLV320DAC3202EVM Overview
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1
TLV320DAC3202EVM Overview
1.1
Features
TLV320DAC3202EVM:
•
A USB stick version of the TLV320DAC3202EVM for easy operation
•
USB connection to PC provides ability to stream audio data for evaluation
•
Power to TLV320DAC3202 can be supplied from a PC USB connection, or an external battery by
changing the jumper connection
•
A 3.5-mm jack can be connected to a headphone for listening tests or to a cable connected to an
instrument for performance verifications
•
Pre-programmed EEPROM boots TLV320DAC3202 as a USB audio device when connected to a PC
•
Use generated wave files (.wav) to evaluate total harmonic distortion (THD), crosstalk between
channels, ICN, dynamic range, or amplitude
1.2
Introduction
The
is a high-fidelity, low-power headphone amplifier with an integrated digital-to-analog
converter (DAC) and power rails. The digital audio interface supports industry-standard formats such as
I
2
S™ and PCM. Volume setting, data width, and sampling rate are configurable for optimum flexibility and
efficiency. The headset power control automatically adjusts the rail voltage based on the input signal to
maximize efficiency and performance. An industry-standard I
2
C™ controller enables ease of operation and
reduces overall device pin count.
Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with
the TLV320DAC3202EVM.
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Description
This section describes the input and output connections, the power connection, and the dc ampere meter
connection to the TLV320DAC3202EVM.
2.1
Top Side Components
The top side of the EVM consists of a TLV320DAC3202 device and its supporting components inside the
white square bracket and a switched mode power supply (SMPS) that powers the DVDD pin, as
shows. A USB-type A connector connects the EVM to a PC for streaming audio data.
Figure 1. TLV320DAC3202EVM: Top Side
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TLV320DAC3202EVM
SLAU327 – October 2010
Copyright © 2010, Texas Instruments Incorporated
