Texas Instruments (NYSE: TXN) announced the launch of an integrated circuit (IC) that simplifies the design and programming of audio systems for multi-speaker portable product space enhancement, and its applicable range includes laptops and tablets , Sound bar and audio extension base. National Semiconductor LM48901 Space Array is the first innovative audio IC series (including 4 Class D amplifiers) that uses distributed sound processing and speaker array technology. This product brings an immersive experience to space-constrained applications Audio experience. For example, the wide-screen of some tablets can provide impressive high-definition video, but the user ’s overall experience is hindered by the audio produced by the close-pitch speakers, which lacks clarity and depth. The effect of closely spaced speakers that produce audio. Because multiple speakers are close together, the user sounds like there is only one speaker, which limits the sound field. The LM48901 and supporting software tools solve this problem with easy-to-use sound effects programming, which can transform a small sound field into an immersive sound experience. Manufacturers can use this technology in the entire product portfolio, from tablets to 2 to Sound bar with 16 speakers. Main features and advantages Complete audio solution: The IC integrates a spatial processing DSP, four Class D amplifiers, an 18-bit stereo analog-to-digital converter (ADC), a phase-locked loop (PLL), and I2S and I2C interfaces. Simplified sound effects programming: easy-to-use software tools eliminate the need for algorithm adjustments and internal DSP experts, accelerating development. Immersive sound effects: No matter the size of the physical system, it can provide an expanded sound field that is superior to competitive solutions and achieve differentiated products. Flexible multi-channel capabilities: Multiple LM48901s implemented in daisy chain support up to 16-channel speaker and multiple subwoofer configurations. Integrated 2 W speaker driver: 4 Class D amplifiers can output 2 W continuous output power per channel to a 4 ohm load, less than 1% total harmonic distortion plus noise (THD + N) to simplify system design and reduce bill of materials . Tools and support The LM48901's software network tool includes an easy-to-use speaker array coefficient generator that can create unique spatial audio coefficients in a few simple steps. In addition, it includes Android driver and application notes, evaluation boards, and graphical user interfaces. Availability, packaging and price LM48901 uses two package types: 36-pin 3.2mm & TImes; 3.4mm mini SMD, 32-pin 5mmx 5mm LLP. 1000 recommended retail price is $ 2.50
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February 09, 2024