Audio Processor supports HD voice communications.

Press Release Summary:

Powered by AcuEdge™ acoustic technology with echo canceller, Timberwolf ZL38040 provides noise reduction for HD audio speaker phone and IP phone applications. Device combines DSP with voice specific hardware accelerators, 3 digital microphone interfaces, 2 independent 16-bit DACs with headphone drivers, and 2 flexible TDM interfaces in single 64-pin QFN package. Processor supports 44.1/48 kHz stereo music playback with voice, and both stationary and psychoacoustic noise reduction.

Original Press Release:

Microsemi Introduces ZL38040, the First Timberwolf-based Product with New AcuEdge Acoustic Technology

Best-in-class Voice Communications Solution Targets Enterprise Hands-free Communication

ALISO VIEJO, Calif. -- Microsemi Corporation (Nasdaq: MSCC), a leading provider of semiconductor solutions differentiated by power, security, reliability and performance, today introduced the first product in its new Timberwolf family. Powered by Microsemi's AcuEdge(TM) acoustic technology, the ZL38040 delivers best-in-class high definition (HD) voice communication solutions for the enterprise hands-free speakerphone markets. 

Microsemi's ZL38040 is a new device with an advanced wideband acoustic echo canceller designed to provide leading-edge echo cancellation and noise reduction for HD audio speaker phone and IP phone applications. Microsemi's patented AcuEdge firmware and its acoustic echo canceller permit significantly more audio information to be transmitted while blocking interfering signals such as echo and background noise.

AcuEdge's technology consists of license-free, royalty-free audio IP solutions. It is the compilation of various intellectual properties targeted at processing voice signals in conjunction with noise reduction algorithms, automatic gain control, echo cancellation, psychoacoustic noise reduction, howling detection and rejection. These powerful capabilities are the foundation for enterprise level automatic speech recognition, sound classification and other intelligent decision-making functions based on sound and audio detection.

"Our second-generation family of voice processing solutions takes our AcuEdge acoustic technology to the next level, catering to today's most demanding enterprise hands-free and voice market applications," said Roger Holliday, senior vice president and general manager, communications product group at Microsemi. "These world-class solutions bring significant feature benefits to the emerging hands-free audio/voice market, enabling designers to develop pioneering applications that perform reliable communication based on audio intelligence." 

To complement the ZL38040 hardware and AcuEdge software, Microsemi provides a comprehensive development package to accelerate customers' time-to-market via a validated reference design and easy-to-use tools that include MiTuner(TM), an automated AEC tuning kit. The Microsemi AcuEdge solution has been tested on customer platforms that meet TIA, ETSI and ITU standards, enabling the ZL38040 to achieve design-in success with tier-one OEMs in targeted enterprise markets.

The new capabilities afforded by Microsemi's ZL38040 are important advancements to meet the increasing demand for IP phones and enterprise hands-free communication. According to Infonetics Research, worldwide IP desktop hardware phone shipments reached about 27.1 million units in 2013, with projected growth of 10.6 percent CAGR from 2013-2018 as more businesses migrate to IP and require corresponding endpoints.

"Microsemi's new AcuEdge acoustic solutions will enable OEMs developing new hands-free audio- and voice-related products to build advanced IP phones that meet the exact requirements of enterprise applications for high-quality voice and video," said Diane Myers, principal analyst, Infonetics Research.

About the ZL38040 

The ZL38040 Timberwolf provides a powerful DSP with voice specific hardware accelerators, three digital microphone interfaces, two independent 16-bit DACs with headphone drivers and two flexible TDM interfaces in a single 64-pin QFN package. Additional features include 44.1/48 kHz stereo music playback with voice, ultra-low and standby off power, and stationary and psychoacoustic noise reduction. It can run unattended (controllerless) and offers self-booting into a configured operational state. In addition, the ZL38040 has built-in support for G.712 and G.722 and is G.168 and G.169 compliant line echo cancellation (LEC).


Microsemi's ZL38040 powered by the AcuEdge acoustic technology is available now. For additional product information, visit Customers can also contact Microsemi's sales team at

About Microsemi

Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world's standard for time; voice processing devices; RF solutions; discrete components; security technologies and scalable anti-tamper products; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 3,400 employees globally. Learn more at

Microsemi and the Microsemi logo are registered trademarks or service marks of Microsemi Corporation and/or its affiliates. Third-party trademarks and service marks mentioned herein are the property of their respective owners.

CONTACT: Richard Round, Sr. Manager, Marketing Communications, 949.380.6135, and Beth P. Quezada, Communications Specialist, 949.380.6102, Email:

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