STMicroelectronics

STMicroelectronics, Europe’s largest semiconductor company, has licensed SoundChip electronic IP to create a range of highly innovative noise cancelling audio engines and MEMS microphones that enable headphones and earphones with best-in-class and lowest power feed-forward, feedback and hybrid noise cancelling capabilities.

STANCx

Low-power, stereo and mono, digitally-controlled audio engines combining hybrid ANC with advanced situational awareness.

Product description

Both STANC0 and STANC1 (the former being stereo and the latter mono) are built around SoundChip’s Soundcore technology to deliver precise, zero latency, digitally-controlled analog filters.

The flexibility of Soundcore’s digitally-controlled analog layer is of particular advantage and ensures that STANCx devices are suitable for a host of applications where high-performance hybrid noise cancellation is essential, and where low-power, software-enabled features like open-ear talk-through, Auto ANC and Smart Aware provide further opportunities for product innovation and differentiation.

Features
  • 01

    Digitally-controlled feedback and feed-forward filters

  • 02

    Separate, digitally-configurable binaural monitoring circuits

  • 03

    100 dB dynamic range, zero-latency audio processing

  • 04

    Billions of programmable filter and device settings

  • 05

    Controlled via simple I2C interface in SW mode

  • 06

    Compact 4.5mm x 4.5mm LF-BGA64 package

Benefits
  • 01

    Class-leading, lowest-power hybrid noise cancelling

  • 02

    Advanced situational awareness

  • 03

    Rich, high definition sound reproduction

  • 04

    Dynamically configurable with software control

  • 05

    Optimised for smart, digital-wired & wireless headset applications

  • 06

    Compact form factor with lowest external part count

MP23ABS1

Analog, bottom port MEMS microphone designed for high-performance noise cancelling applications.

Product description

Featuring a flat audio response between 20Hz and 20kHz, 66dB SNR, zero-latency output and a surface mount assembly to provide an accurate and consistent measurement of environmental noise conditions, and therefore enable the delivery of effective feedback, feedforward and hybrid noise cancelling.

Features
  • 01

    Flat 20Hz - 20kHz receiving response: 66dB SNR

  • 02

    High acoustic overload point: 130 dBSPL

  • 03

    Tight sensitivity matching: +/- 1.5 dB

  • 04

    Compact RHLGA package: 3.50 x 2.65 mm

Benefits
  • 01

    Accurate capturing of ambient sound with reduced hiss noise

  • 02

    Robust in high noise environments

  • 03

    Stable end-product manufacturing

  • 04

    Reliable, low-cost assembly