Texas Instruments has introduced a highly integrated audio to help designers meet growing consumer demand for cost-efficient, feature-rich products with better audio quality and longer battery life. The 1,8 V codec combines integrated power management and dual miniDSP audio processing engines to save designers total audio solution cost and ease design.
TI’s PurePath Studio development toolset further eases design complexity and speeds time to market. And the codec’s PowerTune technology increases playback time by allowing designers to tune the device for optimum power use in each operating mode.
The TLV320AIC3254 is the first product from TI to incorporate the highly programmable miniDSP audio processing engine, which allows users to run complex algorithms on the device while freeing MIPS on the primary processor. Leveraging TI’s new codec and its 192 kHz sample rate, customers can add a comprehensive suite of advanced digital signal processing capabilities to improve audio performance, including 20-band stereo graphic equaliser, multiband dynamic range compression, custom FIR and IIR filtering, and 3D processing, without in-house algorithm expertise or increased investment in resources for code development.
The device also features PowerTune technology to extend battery life without sacrificing audio quality. This technology provides customers with the flexibility to optimise power consumption under any usage model, trading off between low-power operation and signal-to-noise ratio (SNR) for better audio quality. For instance, 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 maximise 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 device includes dual integrated LDOs, which provide additional power supply rejection and extend device capability to operate from a single supply up to 3,6 V. With integrated stereo headphone amplifier, dual microphone programmable gain amplifiers, fractional PLL and analog input multiplexer, the codec aims to simplify board design and reduce final system component count and cost.
For more information contact EBV Electrolink, +27 (0)21 402 1940, [email protected], www.ebv.com
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