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.

STANC0

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

Product description

STANC0 integrates, within a compact 4.5mm x 4.5mm x 1.4mm LFBGA-64 package, SoundChip’s patented SoundCore™ zero-latency digitally-controlled analog processing technology to enable class-leading Hi-Res and HD-PA®-compliant audio and noise cancelling performance as well as other advanced sound features, such as advanced situational awareness.

STANC0’s highly integrated design, which includes a high-efficiency, capacitor-less Class-AB headphone driver, enables the fully configurable combination of two processed microphone signals with each channel of fully-compensated stereo program audio to render a faithful, noise-free listening experience without the undesirable degradation in sound quality.  

STANC0 can be configured for feedback, feed-forward or hybrid noise cancelling and supports advanced, digitally-controlled awareness and talk-through modes. Moreover, unlike competing smart codecs, which tend have high current draw, STANC0 consumes only 5.3 mA at an operating voltage of 3.3V and when configured for hybrid noise cancelling..

Features
  • 01

    Soundcore™ R3+ zero-latency, digitally-controlled analog audio processing architecture

  • 02

    Hi-Res™, HD-PA®-compliant stereo audio playback with 100 dB dynamic range

  • 03

    Integrated feedback (FB) and feed-forward (FF) noise cancelling processing with possibility of off-chip expansion

  • 04

    Integrated and digitally-controlled audio compensation filters and talk-through

  • 05

    Built-in capacitor-less, high-efficiency, Class-AB amplifier delivering 30mW per channel into 32 Ohm load

  • 06

    5.3 mA (17.5 mW) quiescent current during stereo hybrid-ANC operation

  • 07

    4.5mm (l) x 4.5mm (w) x 1.4mm (h) LFBGA-64 package

Benefits
  • 01

    Compact, highly integrated circuit with low external part count

  • 02

    Enables class-leading, low-power hybrid noise cancelling

  • 03

    Enables natural talk-through and advanced situational awareness features

  • 04

    Delivers an uncompromising, high definition sound reproduction

  • 05

    Dynamically configurable by connected apps/software

  • 06

    Optimised for 'smart' wireless headset applications

STANC2

Compact, low-power, digitally-controlled stereo audio engine combining hybrid ANC with advanced situational awareness.

Product description

STANC2 integrates, within a compact 3.6mm x 3.6mm x 1.0mm VFBGA-64 package, SoundChip’s patented SoundCore™ R4 zero-latency digitally-controlled analog processing technology to enable class-leading Hi-Res and HD-PA®-compliant audio and noise cancelling performance, as well as other innovative sound features, such as advanced situational awareness.

STANC2’s integrated noise cancelling processing facilitates the combination of pre-compensated stereo program audio with two filtered microphone signals per channel to render a compelling, noise-free audio experience without degrading sound quality, which is often the case with competing devices. And, whereas alternative analog-based techniques require many low-precision passive components to form their filters, STANC2 integrates much of its processing on-chip to reduce application size, increase filter precision and lower system cost.

To provide designers with maximum flexibility, STANC2 can be configured for feedback, feed-forward or hybrid noise cancelling and supports advanced, digitally-controlled awareness and talk-through features. Moreover, unlike competing smart codecs, which tend to have high current draw, STANC2 consumes only 5.1 mA at an operating voltage of 3.3V and when configured for hybrid noise cancelling.

Features
  • 01

    Soundcore™ R4 zero-latency, digitally-controlled analog audio processing architecture

  • 02

    Hi-Res™, HD-PA®-compliant stereo audio playback with 100 dB dynamic range

  • 03

    Integrated feedback (FB) and feed-forward (FF) noise cancelling processing with possibility of off-chip expansion

  • 04

    Integrated and digitally-controlled audio compensation filters and talk-through

  • 05

    Built-in capacitor-less, high-efficiency, Class-AB amplifier delivering 30mW per channel into 32 Ohm load

  • 06

    5.1 mA (16.8 mW) quiescent current during stereo hybrid-ANC operation

  • 07

    3.6mm (l) x 3.6mm (w) x 1.0mm (h) VFBGA-64 package

Benefits
  • 01

    Compact, highly integrated circuit with low external part count

  • 02

    Enables class-leading, low-power hybrid noise cancelling

  • 03

    Enables natural talk-through and advanced situational awareness features

  • 04

    Delivers an uncompromising, high definition sound reproduction

  • 05

    Dynamically configurable by connected apps/software

  • 06

    Optimised for 'smart' wireless headset applications

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