Date: 03/11/2008

Audio codec with integrated miniDSP

Texas Instruments has introduced 1.8-V audio codec with integrated miniDSP. The codec features integrated power management and dual miniDSP audio processing engines. The suggested applications are handsets, portable navigation and portable media devices.

Designs using TLV320AIC2354 differentiates products with advanced audio effects, including multi-band equalization, dynamic bass boost, noise and echo cancellation.
miniDSP and algorithm library enhance audio performance and ease design complexity

The TLV320AIC3254 is the first product from TI to incorporate miniDSP audio processing engine, which allows users to run complex algorithms on the device while freeing MIPS on the primary processor. Engineers can add the capabilities to improve audio performance, including 20-band stereo graphic equalizer, multi-band dynamic range compression, custom FIR and IIR filtering, and 3-D processing, without in-house algorithm expertise or increased investment in resources for code development. TI will provide all low-level miniDSP programming. And designers can leverage the PurePath Studio development toolset and TI's library of advanced algorithms to compile, configure and load their application into the integrated miniDSP engines in an intuitive, drag-and-drop graphical environment, simplifying design complexity and reducing time to market.


This device features PowerTune technology to extend battery life without sacrificing audio quality. Designers concerned with power consumption can tune their system to consume as little as 2.4 mW in stereo playback when performance is programmed to the 90-dB SNR level. Conversely, customers seeking to maximize performance can achieve 100-dB SNR at 5.1 mW in stereo playback. To further increase performance, the TLV320AIC3254 also provides digital microphone support for improved system-level noise immunity.


The TLV320AIC3254 includes dual integrated LDOs, which provide additional power supply rejection and extend device capability to operate single-supply up to 3.6 V.
With integrated stereo headphone amplifier, dual microphone programmable gain amplifiers, fractional PLL and analog input mux, the codec reduces final system component count and cost.


Pricing:
TLV320AIC3254 Codec with miniDSP: $5.45 in 1000-piece quantities
TLV320AIC3204 Codec without miniDSP: $3.45 in 1000-piece quantities

Availability: Now in volumes