ON Semiconductor has selected Nordic Semiconductor’s nRF51822Bluetooth Smart system-on-chip (SoC) for its new Ezairo 7150 SL hybrid module – a system in a package (SiP) containing all required electronics to operate wireless-enabled hearing aids and cochlear implants.
The module is based on the Ezairo 7100 open-programmable 24-bit mixed-signal DSP platform optimised for audiology processing, and provides wireless multiprotocol operation required for both Bluetooth Smart and 2,4 GHz applications. Nordic’s nRF51822 SoC provides Bluetooth Smart wireless connectivity between the module and both iOS- and Android-compatible Bluetooth Smart Ready devices.
Ezairo 7150 SL allows hearing aid users to control their hearing aid’s parameters such as volume or other sound adjustments, check the battery status, receive alerts, and make program changes from their smartphone. It also features a ‘Find Me’ function to help users locate a misplaced hearing aid.
Thanks to the nRF51822’s multiprotocol support, Ezairo 7150 SL also supports low-latency stereo audio streaming using a 2,4 GHz-based proprietary protocol. This allows users to hear music via their hearing aid from any external audio source, for example their television set or smartphone, through an ancillary device. The device can also function as a remote microphone. The connectivity range is between 5 and 10 metres depending on surrounding conditions, while the low-latency link prevents any lip-sync issues from being observed while the user is watching television.
The nRF51822 SoC is available in a 6 by 6 mm 48-pin QFN package and three ultra compact wafer-level chip-scale packages (WLCSP), the smallest of which measures 3,5 by 3,33 mm. Ezairo 7150 SL, which measures 3,94 by 7,39 by 1,61 mm, uses a WLCSP version of the SoC, enabling ON Semiconductor to limit the size and weight of the hybrid module. It also features a low-power 2 Mb serial CMOS EEPROM to store hearing aid firmware and application parameters.
To accelerate the development of an Ezairo 7150 SL-based product, ON Semiconductor has provided a complete reference design of a behind-the-ear (BTE) hearing aid. The reference design includes all the required hardware, including the antenna, as well as software and firmware that enable the advanced wireless features.
Smart farming with LoRaWAN Otto Wireless Solutions
Telecoms, Datacoms, Wireless, IoT
Real-time visibility is transforming modern agriculture, and Otto Wireless Solutions, together with Dragino, deliver this capability through a comprehensive suite of long-range IoT sensors and gateways designed for smart farming.
Read more...Understanding two key tools for cleaner serial data Altron Arrow
Editor's Choice Analogue, Mixed Signal, LSI
Understanding how pre-emphasis and equalisation works, and when to use one over the other, is critical when designing reliable high-speed systems.
Read more...RTK-enhanced GNSS and INS solution Dizzy Enterprises
Telecoms, Datacoms, Wireless, IoT
This latest XSENS MTi-8 Click provides high-accuracy positioning (RTK-supported) and orientation tracking in demanding outdoor embedded applications.
Read more...High-performance double balanced RF mixer RFiber Solutions
Telecoms, Datacoms, Wireless, IoT
The AM5008 from Mercury Systems is a high-performance, double-balanced MMIC mixer designed for wideband applications spanning 2 GHz to 24 GHz.
Read more...Compact NFC antennas enable easy integration
Telecoms, Datacoms, Wireless, IoT
Leankon has expanded its 13,56 MHz NFC antenna portfolio with a comprehensive suite of nine off the shelf products designed for next generation IoT applications.
Read more...Ultra-low jitter clocks Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Skyworks has introduced a new family of ultra-low jitter programmable clocks designed to meet the increasing demands of next-gen connectivity.
Read more...Efficient Bluetooth SoC Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The EFR32BG29 wireless SoC from Silicon Labs is a highly efficient, high memory, low-power, and ultra compact SoC designed for secure and high-performance wireless networking for IoT devices.
Read more...Minimal size, maximum flexibility Würth Elektronik eiSos
Telecoms, Datacoms, Wireless, IoT
Würth Elektronik has introduced two highly compact radio modules that give developers maximum freedom in designing proprietary wireless solutions that go beyond standard protocols.
Read more...HackRF Pro advances Open SDR performance IOT Electronics
Telecoms, Datacoms, Wireless, IoT
Designed for engineers, researchers, and radio enthusiasts alike, the HackRF Pro can transmit and receive signals across a wide frequency range of 100 kHz to 6 GHz, making it a versatile tool for testing and developing modern and emerging radio technologies.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version