Acoustic echo canceller offers reduced power consumption
16 Feb 2000
Telecoms, Datacoms, Wireless, IoT
Multitech Electronic Corporation
Mitel is offering the MT93L16,
a low-voltage acoustic echo canceller (AEC) that delivers optimal performance to a range of telephony applications. The device is based on the company’s Trueplex technology which enhances audible performance while reducing cost by up to a claimed 33% and power consumption by up to 78%, compared to alternative microprocessor solutions.
The market for Mitel’s AEC components spans applications including VoIP (voice over Internet protocol), VToA (voice telephony over ATM), business and mobile telephones, PCs and intercom terminals.
The MT93L16 is a full-duplex solution designed to maintain a high level of performance, even as the industry moves toward VoIP and VToA systems. These packet-based network technologies require voice capabilities that withstand long delays without introducing echo into the system. According to Mitel, traditional solutions cannot meet performance expectations because they default into half-duplex mode and cannot eliminate all residual echoes as required by VoIP systems. Mitel says its Trueplex technology eliminates residual echoes without removing near-end signals or background room noise, providing extremely good voice quality even when long delays are introduced. The AEC technology uses a stable advanced adaptive filter algorithm that constantly tracks changes in the echo path to provide quick reconvergence time for clear voice signals, even during double talk and when signal levels are low. Mitel protects customer investment in this algorithm, as the device integrates on-chip BOOT RAM in addition to on-chip ROM, so engineers can incorporate future factory upgrades to algorithms through a download directly onto the chip.
Further reading:
Macom targets broadband radar with time delay MMIC
RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
Macom’s MADU FR1012 is a GaAs MMIC 1-bit true time delay device covering 4 GHz to 12 GHz, designed for broadband microwave systems where beam accuracy and signal integrity are critical.
Read more...
Compact analogue phase shifter
RF Design
Telecoms, Datacoms, Wireless, IoT
The Mini-Circuits JSPHS-150+ is a compact analogue voltage-controlled phase shifter designed for narrowband RF applications between 100 and 150 MHz.
Read more...
Wireless connectivity expanded
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Espressif Systems has introduced two new members of its ESP32 wireless SoC family: the ESP32-E22, the company’s first Wi-Fi 6E connectivity chip, and the ESP32-H21, an ultra-low-power Bluetooth LE microcontroller aimed at coin-cell and battery-powered devices.
Read more...
Integrated X-band radar front-end module
RF Design
Telecoms, Datacoms, Wireless, IoT
Qorvo has introduced an X-band radar front-end solution that enables defence system designers to achieve higher performance without increasing size, weight or prime power.
Read more...
Introducing Aurata
CST Electronics
Telecoms, Datacoms, Wireless, IoT
Antenova has launched Aurata SR4L112: a compact, high efficiency embedded 4G/LTE antenna engineered for long, narrow PCB designs.
Read more...
Multi-constellation GNSS module in a legacy-compatible footprint
Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Telit Cinterion has announced the SE869eK2L, a single-frequency L1 GNSS module designed to help device manufacturers upgrade legacy positioning designs with improved performance and cost efficiency, while preserving design continuity.
Read more...
Quectel expands 5G portfolio
iCorp Technologies
Telecoms, Datacoms, Wireless, IoT
Quectel expands 5G portfolio with new Qualcomm- and UNISOC-based modules.
Read more...
Compact RTK design: More than just the receiver
iCorp Technologies
Editor's Choice Telecoms, Datacoms, Wireless, IoT
In practice, engineers building compact RTK products keep discovering the same thing: the hardest component in the system is no longer the receiver. It is the antenna.
Read more...
Microchip advances Space-Grade timing performance
ASIC Design Services
Telecoms, Datacoms, Wireless, IoT
Microchip Technology has expanded its atomic clock portfolio with the radiation-tolerant Space CSAC-SA65, a Chip Scale Atomic Clock designed to deliver precise timing for space systems.
Read more...
Channel emulator for 6 G and Wi-Fi 7/8
Concilium Technologies
Telecoms, Datacoms, Wireless, IoT
With 400 MHz instantaneous bandwidth and support for carrier frequencies up to 23,6 GHz, Vertex 6.0 is the industry’s first channel emulator designed for next generation 6 G and Wi-Fi 7/8 testing.
Read more...
printer friendly version