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Conexant Launches New HD Audio CODEC with Integrated AudioSmart Class-D Amplifier

June 3, 2014

Enables High Quality Audio for Computers; Produces Maximum Sound Pressure Level without Damage to Speakers or Other Components

TAIPEI, Taiwan--(BUSINESS WIRE)-- Today at Computex 2014, Conexant Systems Inc. announced the CX20952, a new HD Audio CODEC that enables high quality audio on computers and tablets with low power consumption, two cap-free headphone amplifiers, and a fully-integrated Class-D amplifier. Part of Conexant’s AudioSmartTM family, the new CX20952 is also an intelligent device: a single-chip solution that monitors power delivered to speakers, ensuring maximum sound pressure level (SPL) and optimal performance without damage to system components.

The CX20952 is a new HD audio CODEC from Conexant that enables high quality audio on computers and t ...

The CX20952 is a new HD audio CODEC from Conexant that enables high quality audio on computers and tablets. It features low power consumption, two cap-free headphone amplifiers and a fully integrated Class-D amplifier. (Photo: Business Wire)

Differentiated from standalone smart amplifier solutions, Conexant’s fully-integrated CX20952 enables a smaller motherboard footprint and lower bill of materials (BOM) cost for applications that do not require the high output power of a large, discrete device. The new SoC is designed to meet consumer demand for high quality audio that pushes the limits of sound in tablets and compact PCs.

With two cap-free HP/Line outputs and a universal jack that automatically detects and configures itself to support CTIA (Apple) or OMTP (Nokia) style headsets, Conexant’s high quality CX20952 solution delivers the following key features required for low-power, small form factor devices:

  • Support for multiple peripheral types (headphones, headsets, powered speakers, microphones and line-in devices) with a single 3.5mm audio jack.
  • Support for an additional direct-drive headphone output on a docking station or second jack panel.
  • Loud, clear audio playback from small speakers in space-limited enclosures (typical of today’s compact industrial designs).

    “Consumers are beginning to expect the same high level of performance and clarity from audio as they have become accustomed to with HD video,” noted Saleel Awsare, Conexant vice president and general manager. “Our entire AudioSmart product line is designed to address users’ high expectations for a better, clearer, richer audio experience – and the new CX20952 does it all in a single chip.”

    Additional features include:

  • Stereo AudioSmart Class-D Speaker Amplifier for intelligent delivery of up to 2.8W per channel
  • Integrated Hardware EQ/DRC with SpeakerShield Class-D protection
  • Mono Output with tunable hardware LPF/BPF for subwoofer applications
  • Up to four digital microphones supporting advanced configurations for tablets, convertibles, clamshells and AIOs
  • Analog PC BEEP, EAPD and GPIOs
  • I2C interface allowing real-time software control of auxiliary devices
  • D3 Live supporting pass-through audio playback to Class-D with active EQ/DRC while system is asleep

    Computex attendees are encouraged to stop by Conexant’s suite at Pacific Business Center PBC Hotel, Meeting Room D during the show to get a first-hand look at the new audio CODEC in action. Please visit for more details.

    About Conexant

    Conexant Systems, Inc., an audio and imaging innovation leader, combines its significant IP portfolio in DSP, analog and mixed signal technology with embedded software to deliver highly innovative silicon and software solutions to enrich and expand audio and imaging capabilities. Both enterprise and consumer markets are addressed by Conexant’s AudioSmartTM and ImagingSmartTM solutions. Products with the company’s technology built-in include PCs, tablet computers, TVs, headsets, printers, video monitors, game consoles and a variety of other devices. Founded in 1999, Conexant is a privately-held fabless semiconductor company headquartered in Irvine, Calif. with offices and design centers worldwide. To learn more, please visit, follow them on LinkedIn and like them on Facebook.

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    Source: Business Wire

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