MediaTek announces MT2533D chipset for smart headsets and headphones

MediaTek has announced MT2533D designed for wireless headphones and in-vehicle hands-free systems, giving users an optimal experience whether they are listening or speaking. 

The MT2533D chipset is also ideal for sports headsets or travel earpieces as it offers local MP3 playback, making music playback possible without the need to pair a smartphone. Such devices could offer users access to up to 1,000 tracks using the support for 4 GB external storage.

“MT2533D with its combination of low power and rich features is the ideal chipset platform for product designers of smart headphones, wireless headsets and hands-free solutions said JC Hsu, corporate vice president and general manager, New Business Development, MediaTek. 

“The combination of advanced audio processing technology with low-power computing capabilities opens up new possibilities for innovation in the smart headset market,” added Hsu. 

The MT 2533D combines an audio Analog Front End (AFE) and Digital Signal Processor (DSP) with an energy-efficient ARM Cortex-M4 processor, 4 MB memory (PSRAM and flash) and dual-mode Bluetooth (2.1 and 4.2 Low Energy) radio.

To support applications that need advanced audio management, MT2533D integrates a DSP that comes with 128 KB IRAM, 250 KB DRAM, and 96 KB SRAM for various speech enhancement algorithms. 

This DSP delivers native Dual Microphone Noise Reduction (DMNR) technology and supports third-party software for a voice wake-up command. It also supports A2DP, HFP, Advanced Wireless Stereo, and MP3 local playback. 

Whether playing music, taking part in a conference call or making a hands-free call from a car, MT2533D offers high-quality audio with minimal power consumption. The chipset can also act as the MCU for other applications, which can include biosensing. In addition, it offers display and camera interfaces, and can work with additional connectivity, such as Wi-Fi, using the SDIO feature.