The ZL38063 is part of Microsemi's Timberwolf audio processor family of
products that improves Automatic Speech Recognition (ASR) performance
at extended distances with barge-in capability and is optimized for
detecting voice commands.
The Microsemi AcuEdge™ Technology ZL38063 device is specifically
designed for televisions, set-top boxes, and smart speakers, but works
equally well in other connected home applications. The device is capable
of both voice control and 2-way full duplex audio with voice enhancements
such as Acoustic Echo Cancellation (AEC), Noise Reduction (NR) to
improve both the intelligibility and subjective quality of voice in harsh
acoustic environments.
Microsemi offers additional tools to speed up the product development
cycle. The MiTuner™ ZLS38508 or ZLS38508LITE GUI software packages
allow a user to interactively configure the ZL38063 device. The optional
ZLE38470BADA Automatic Tuning Kit provides automatic tuning and easy
control for manual fine tuning adjustments.
Applications
• Integrated smart home gateways
• Connected home devices:
• Set Top Boxes
• Smart Speakers
• Digital Assistants
Block Diagram
Ordering Information
• ZL38063LDF1: 64-pin QFN (9×9) package (Tape and Reel)
• ZL38063LDG1: 64-pin QFN (9×9) package (Tray)
• ZL38063UGB2: 56-ball WLCSP (3.1×3.1) package (Tape and Reel)
These packages meet RoHS 2 Directive 2011/65/EU of the European
Council to minimize the environmental impact of electrical equipment.
ZL38063
Microphone Array ASR-assist Audio Processor
Microsemi AcuEdge™ Technology
ZLS38063 Firmware
The ZL38063 can run different Firmware
images that target specific modes of operation.
Firmware images can be swapped during
normal operation to switch modes dynamically.
Microsemi provides firmware images for two
basic operational modes:
Two way voice communication
• Supports 2-3 microphone linear arrays for 180°
audio pick up
• Supports 3 microphone off-axis or triangular
arrays for 360° audio pick up
• Supports device cascading to allow up to a 6
microphones array
• Full Narrowband and Wideband Acoustic Echo
Cancellation (AEC) operation
• Supports long tail AEC (up to 256 ms)
• Non-Linear AEC provides higher tolerance
for speaker distortions
• Non-Linear processor
• Noise reduction
• Far-field microphone processing
ASR Assist Algorithms
• Supports 2 microphone linear arrays for 180°
audio pick up
• Supports 3 microphone off-axis or triangular
arrays for 360° audio pick up
• Supports device cascading to allow up to 6
microphones in a circular array for 360° audio
pick up
• Support for Barge-in, or incoming trigger
'spotting' in the presence of DAC audio output
• Noise reduction
• Enhanced far-field support for distances up to
16 feet from the microphone.
Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for aerospace
& defense, communications, data center 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; enterprise storage and communication solutions, security technologies and scalable anti-tamper products;
Ethernet solutions; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is
headquartered in Aliso Viejo, California and has approximately 4,800 employees globally. Learn more at www.microsemi.com.
Microsemi Corporate Headquarters
One Enterprise, Aliso Viejo, CA 92656 USA
Within the USA: +1 (800) 713-4113
Outside the USA: +1 (949) 380-6100
Fax: +1 (949) 215-4996
Email: sales.support@microsemi.com
www.microsemi.com
Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any
particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold
hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction with mission-critical equipment
or applications. Any performance specifications are believed to be reliable but are not verified, and Buyer must conduct and complete all performance and other
testing of the products, alone and together with, or installed in, any end-products. Buyer shall not rely on any data and performance specifications or parameters
provided by Microsemi. It is the Buyer’s responsibility to independently determine suitability of any products and to test and verify the same. The information
provided by Microsemi hereunder is provided “as is, where is” and with all faults, and the entire risk associated with such information is entirely with the Buyer.
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or anything described by such information. Information provided in this document is proprietary to Microsemi, and Microsemi reserves the right to make any
changes to the information in this document or to any products and services at any time without notice.
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2017 Microsemi Corporation. All rights reserved.
Microsemi and the Microsemi logo are registered
trademarks of Microsemi Corporation. All other
trademarks and service marks are the property
of their respective owners.
VPPD-158292. 2.0. 4/17
Hardware Features
• DSP with Voice Hardware Accelerators
• SPI or I2C Slave port for host processor interface
• General purpose UART port for debug
• Master SPI port for serial Flash interface
• Boots from SPI or Flash
• Flash firmware can be updated from SPI Slave
• 14 General Purpose Input/Output (GPIO) pins (11 with the
56pin WLCSP)
• 2 low power modes controlled by reset
The MiTuner™ Automatic Tuning Kit and
ZLS38508 MiTuner GUI
Microsemi's Automatic Tuning Kit option includes:
• Audio Interface Box hardware
• Microphone and Speaker
• ZLS38508 MiTuner GUI software
• Allows tuning of Microsemi's AcuEdge Technology Audio
Processor
The ZLS38508 software features:
• Auto Tuning and Subjective Tuning support
• Provides visual representations of the audio paths with drop-
down menus to program parameters, allowing:
• Control of the audio routing configuration
• Programming of key blocks in the transmit (Tx) and
receive (Rx) audio paths
• Setting analog and digital gains
• Configuration parameters allow users to “fine tune” the overall
performance
ZL38063
Microphone Array ASR-assist Audio Processor
Tools
• ZLK38000 Evaluation Kit
• MiTuner™ ZLS38508 and ZLS38508LITE GUI
• MiTuner™ ZLE38470BADA Automatic Tuning Kit
