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

STANC0 and STANC1 are headphone amplifiers that provide advanced hybrid noise cancelling with binaural talk-through.

Product description

Both STANC0 and STANC1 (the former being stereo and the latter mono) are built around SoundChip’s Soundcore technology to deliver precise, digitally programmable analog filters with zero latency and a dynamic range of over 100dB.

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

Features
  • 01

    Digitally programmable feedback and feed-forward filters

  • 02

    Separate, digitally-configurable binaural monitoring circuits

  • 03

    100 dB dynamic range, zero-latency audio processing

  • 04

    107 billion programmable filter and device settings

  • 05

    Operates via presets in HW mode or via I2C in SW mode

  • 06

    Compact 4.5mm x 4.5mm LF-BGA64 package

Benefits
  • 01

    Highest performance, lowest-power hybrid noise cancelling

  • 02

    Natural, open-ear talk-through and augmented audio capabilities

  • 03

    Rich, high definition audio reproduction

  • 04

    Dynamically configurable with software control

  • 05

    Optimised for smart, digital wired and wireless headphone applications

  • 06

    Compact form factor with lowest external part count

STANCX-L

STANC0-L and STANC1-L are headphone amplifiers that provide feedback or feed-forward noise cancelling with mono talk-through.

Product description

The former is stereo while the latter is mono, and much like the STANCx range, both STANC0-L and STANC1-L are built around Soundcore technology, to provide zero latency sound processing within a dynamic range of 100dB.

The STANCx-L tier of devices are purpose built for cost sensitive, entry-level models which may not require rich, software-enabled features or a more costly four microphone design.

Features
  • 01

    Digitally programmable feedback or feed-forward filters

  • 02

    Separate, digitally configurable monitoring circuits

  • 03

    100 dB dynamic range, zero-latency audio processing

  • 04

    107 billion programmable filter and device settings

  • 05

    Operates via presets in HW mode or via I2C in SW mode

  • 06

    4.5mm x 4.5mm LF-BGA64 package

Benefits
  • 01

    Highest performance, lowest power feedback or feed-forward noise cancelling

  • 02

    Natural, open-ear talk-through

  • 03

    Rich, high definition audio reproduction

  • 04

    Flexible tuning and configuration

  • 05

    Optimised for conventional wired and wireless headphone applications

  • 06

    Compact form factor with low external part count

MP34AB01H

The MP34AB01H is an analog bottom port MEMS microphone designed to meet the rigorous demands of 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 with 66dB SNR

  • 02

    Tight +/- 1.5dB sensitivity matching

  • 03

    Compact 3.76mm x 2.95mm RHLGA package

Benefits
  • 01

    Accurate capturing of ambient sound with reduced hiss noise

  • 02

    Stable end product manufacturing

  • 03

    Reliable, low-cost assembly