RS2130, a High Performance MEMS Acceleration Sensor with TDM/I2S Interface
Recently, Lesnant, a manufacturer specialising in high-performance MEMS sensing technology, has launched the RS2130, a MEMS acceleration sensor based on TDM/I2S interface, which features low latency, large bandwidth and ultra-low noise, and is very suitable for automotive active noise cancellation and bone conduction sound pickup.
RS2130 chip adopts 5*5*1.2mm QFN package form, based on Lesnent independent research and development of innovative architecture, ASIC and MEMS are used in automotive-grade process, the range of ± 2g to ± 16g, multi-position selectable, XY-axis noise is less than 30 ug/sqrt (hz), especially in the large bandwidth when the noise performance is excellent, 48KHz ODR unfiltered situation The total output RMS noise is less than 5mg, the delay is less than 100 us at 4kHz, the chip can be directly connected to the A2B transceiver, supports a variety of TDM modes, strong configurability, 14-bit ADC output.
RS2130 MEMS acceleration sensor helps RNC noise reduction Noise in life comes from all aspects, vibration is the source of sound, the vibration of the vocal cords makes us able to emit sound, while the friction vibration of the tyres and the ground produces the tyre noise that we don't want to hear. Especially in new energy vehicles, without the roar of the engine, tyre noise becomes the dominant factor in destroying the quiet driving experience, and this complex, low-frequency random noise generated by tyre-ground contact is often difficult to capture in time. The use of low-latency, high-precision accelerometers solves this problem well.
Accelerometer sensors are arranged close to the tyre position, can accurately capture the tyre noise, in the form of digital signals sent to the DSP processor, and the cockpit microphone to capture the noise signal fusion processing, and then through the phase processing, combined with the car audio to achieve the offset and control of the noise inside the car, this technology is often referred to as Road Noise Cancellation (referred to as RNC). This technology is often referred to as Road Noise Cancellation (RNC for short).
The use of RNC technology helps to enhance the driving experience, reduce driver fatigue caused by noise, improve safe driving, and help reduce the use of soundproofing materials, helping to lighten the car, increase the range, environmental protection and energy saving.
If you like this article, may wish to continue to pay attention to our website Oh, later will bring more exciting content. If you have product needs, please contact us.
