The audio processor optimized for MEMS enhanced functions integrates direct digital microphone input and active audio correction technology to achieve the best sound quality for speakers
STMicroelectronics (STMicroelectronics, referred to as ST) has introduced a new audio processor chip that can be directly connected to the latest miniature microphones, and can also improve the performance of small-sized, low-cost, or even damaged speakers, to achieve market-leading high-quality miniature speakers for customers Audio products.
STA321MP is the latest product of STMicroelectronics' SoundTerminal series of audio ICs, with a built-in MEMS digital microphone and standard microphone input interface. The advantages of miniature size and resistance to noise interference from liquid crystal displays and power devices make MEMS microphones an ideal choice for multi-functional products such as smart phones. STA321MP can be directly connected to MEMS microphones, thereby saving the number of components and costs.
In addition, the second MEMS input interface of the STA321MP can be connected to a miniature sensor to detect the movement of the speaker. The designer can thus optimize the speaker performance by adopting the active audio correction technology of STMicroelectronics' patented technology. Through active audio correction technology, the processor can automatically correct the impact of speaker distortion or damage on sound quality, and achieve excellent audio performance for speakers with overload, cone damage, or limited motion.
As the third-generation SoundTerminal chip, STA321MP has advanced functions and performance. Provide product designers with complete MEMS system development tools and APWorkbench graphical development environment. Among them, APWorkbench can help designers directly configure Sound Terminal products, including active audio correction.
The main features of STA321MP:
• Audio processing performance optimized for MEMS microphone characteristics
• Connect the direct output of a high-efficiency digital amplifier
• PDM/analog and two I2S inputs
• Low power consumption
• 1mm ultra-thin QFN package
The STA321MP is currently available on the market, in a 7 x 7mm QFN package.
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