ZL38050/51/52 Block Diagram
DAC GPIO (14)
Hardware
Accelerators
Audio Processor
Timberwolf™ ZL38050/51/52
Integrated Memory
Digital
Mics UART
Slave SPI/I2CI2S/TDM
Master SPI
PLL
PCM Audio
to Processor/
Network Interface
From
Microphone
To Headphone/
Speaker
Debug Port
Host Processor
Control
Optional
External Flash
Control Buttons
or Status LEDs
Microsemi Timberwolf
™
Audio Processor
HD Voice Audio for IP Camera
Designed for High Definition (HD) Voice 2 way audio in IP Camera,
Microsemi’s new audio processors ZL38050, ZL38051, and ZL38052
feature the company’s innovative AcuEdge™ acoustic technology,
which is a set of highly-complex and integrated algorithms that allow
the user to extract intelligible information from the audio environment
from which they are communicating.
Microsemi’s AcuEdge Technology integrates industry leading
features and dedicated firmware to deliver high-quality hands-free
voice performance while reducing system design complexity.
In complex noisy environments, Microsemi’s AcuEdge Technology
cancels echo and reduces ambient noise. While most solutions
deliver only half-duplex operation, Microsemi’s proprietary algorithm
is able to converge and track changes in the echo path to support
full-duplex operation.
DVR, NVR, or security camera users have difficulty trying to
monitor a large number of video feeds for certain incidents,
crimes, or events. By adding audio to the surveillance camera,
it will enable security personal at the control room to make
judgment calls on security concerns. Microsemi AcuEdge
Technology will provide audio enhancement to allow more
accurate monitoring. The ZL38051 audio processor adds audio
enhancement functions such as far field microphone, sound
location, and beam forming capabilities.
The ZL38052 audio processor increases the functionality by
enabling surveillance of smoke detectors (T3), carbon monoxide
detectors (T4) and provide glass break detection.
New High-performance Audio Processors Enable the Streamlined Development of IP Camera
for HD Voice Capabilities
Audio Processor for IP Camera
Use the following resources to explore:
Microsemi AcuEdge™ Technology
• ZL38050 IP Camera Audio Processor
• ZL38051 Advanced IP Camera Audio
Processor
• ZL38052 Advanced IP Camera with
Sound Classifier Audio Processor
MiTuner™ Automatic Tuning Kit
• MiTuner™ Information
• MiTuner™ GUI Software Guide
• ZLS38508 MiTuner™ GUI
Getting Started
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, Calif., 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
Sales: +1 (949) 380-6136
Fax: +1 (949) 215-4996
email: sales.support@microsemi.com
www.microsemi.com
©
2016 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.
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.
Microsemi does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other IP rights, whether with regard to such information itself
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.
MC 6-16
Analog
ZL38050/51/52
Flash
Microprocessor
LCD Display Control Room
Camera Motor ControlPoE
VoIP Ethernet
PCM SPI/UART
Digital
SPI
Amplifier
Microsemi Timberwolf
™
Audio Processor
HD Voice Audio for IP Camera
• Full duplex AEC (Narrowband and Wideband)
• Mid field audio pick up to 3 meters (ZL38050)
• Far field audio pick up to 10 meters (ZL38051)
• Sound location estimation (ZL38051)
• Beam forming for effective noise attenuation (ZL38051)
• Long tail echo cancellation (up to 256 ms)
• Advanced Noise Reduction to reduces background
noise from the near-end speech signal
• Equalizer
• Howling cancellation: prevents oscillation in
echo canceller audio path
• Smoke/CO alarms detection (ZL38052)
• Glass break detection (ZL38052)
Features and Benefits
IP Camera Block Diagram
Calibration Tuning Results provides good starting
point for subjective tuning
Results based off TIA920/P.1100
Tuning
Testing
Microsemi’s MiTuner™ Kit eases the system tuning
complexity and speed up design cycle for quick
development. MiTuner™ kit provides hardware,
software and support for the automatic tuning of
Timberwolf family of audio processors.
Microsemi Auto Tuning Tool (ZLE38470)
