STMicroelectronics N/V

STMicroelectronics (NYSE:STM) is a French-Italian multinational semiconductor manufacturer headquartered in Geneva, Switzerland. In 2014, ST licensed SoundChip’s Soundcore® electronic IP to embed in a new range of Hybrid ANC enabling, HD-PA®-compliant audio engines. These devices were introduced to the market in 2016 under the STANCx brand.

STANCx devices have experienced widespread uptake for use in models by many of the world’s foremost consumer audio brands, including Philips, Harman, Microsoft, Audio Technica and Panasonic. They offer an unmatched power-performance-price ratio and are ideally suited for providing class-leading performance in the highly prized, high-volume value-segment.

STANC0

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

Product description

STANC0 integrates within a 4.5 x 4.5 x 1.4mm VFBGA-64 package SoundChip’s patented SoundCore R3 zero-latency digitally-programmable analog processing technology to enable the delivery of Hi-Res audio and class-leading HD-PA-compliant active noise cancellation in advanced stereo headphones, as well as other innovative sound features, such as Auto ANC and Smartaware.

STANC0’s fully integrated Soundcore R3 audio processing facilitates the combination of pre-compensated stereo program audio with two filtered microphone signals (per channel) to render a compelling noise-free listening experience with appropriately configured headphones and earphones. And whereas alternative analog-based designs require many low-precision, discrete passive components to form their filters, STANC0 integrates its processing on-chip to reduce application area, increase filter precision and lower system cost.

To provide designers with maximum flexibility, STANC0 can be configured for feedback, feed-forward or hybrid active noise cancelling and supports digitally-controlled awareness and talk-through features. Moreover, unlike competing digital codecs, which typically exhibit high current draw, STANC0 consumes only 5.3 mA at an operating voltage of 3.3V.

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) ANC filters

  • 04

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

  • 05

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

  • 06

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

Benefits
  • 01

    Enables class-leading, low-power hybrid active noise cancelling

  • 02

    Enables natural talk-through with advanced situational awareness

  • 03

    Delivers an uncompromising, high definition sound reproduction

  • 04

    Dynamically configurable by connected apps/software

  • 05

    Compact application circuit with low external part count

  • 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 the more compact 3.6 x 3.6 x 1.0mm VFBGA-64 package SoundChip’s patented SoundCore R4 zero-latency digitally-controlled analog processing technology to enable the delivery of Hi-Res audio and class-leading HD-PA-compliant active noise cancellation in advanced stereo headphones, as well as other innovative sound features, such as Auto ANC and Smartaware.

STANC2’s fully integrated Soundcore R4 audio processing facilitates the combination of pre-compensated stereo program audio with two filtered microphone signals (per channel) to render a compelling noise-free listening experience with appropriately configured headphones and earphones. Soundcore R4 evolves SoundChip’s successful Soundcore R3 architecture one step further to deliver improved click and pop noise suppression during mode transitions, reduced quiescent noise and thus increased dynamic range, and audio processing that is more efficient and thus lower power.

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

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) ANC filters

  • 04

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

  • 05

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

  • 06

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

Benefits
  • 01

    Enables class-leading, low-power hybrid active noise cancelling

  • 02

    Enables natural talk-through with advanced situational awareness

  • 03

    Delivers an uncompromising, high definition sound reproduction

  • 04

    Dynamically configurable by connected apps/software

  • 05

    Compact application circuit with low external part count

  • 06

    Optimised for 'smart' wireless headset applications

MP23ABS1

Analog bottom port MEMS microphone designed for high-performance ANC headset applications.

Product description

Featuring a flat receiving response to frequencies as low as 20Hz, an impressive SNR of >64dB, an AOP of 130dBSPL, and zero-latency output, STMicroelectronics’ HD-PA-compliant bottom-port analog MP23ABS1 MEMS microphone is capable of precisely capturing the ambient sound conditions across the full audio range, making it an ideal choice for use in headphones designed to deliver class-leading ANC performance.

Features
  • 01

    Flat, 20 Hz - 20 kHz receiving response: >64dB SNR

  • 02

    High acoustic overload point: 130 dBSPL

  • 03

    Controlled sensitivity matching: +/- 1.5 dB

  • 04

    Compact RHLGA package: 3.50 x 2.65 x 1.08mm

Benefits
  • 01

    Precise capture of the ambient sound conditions

  • 02

    Robust in high noise environments

  • 03

    Low-cost assembly

  • 04

    Reliable end-product manufacturing