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EETE DECEMBER 2012

5x5x2mm audio transducer delivers 80dBA Active optical cable doubles of sound pressure level reach over copper solutions Model TRSTE-5025 from Transducer USA is a surface mount Avago Technologies has released new Active Optical Cable audio transducer producing a very high sound pressure (AOC) family, high density SFP+ QSFP+, and CXP solutions level of 80dBA minimum in a miniscule 5x5x2mm pack- for high performance computing and data centre applications. age. The top port sound release These active optical cable assemblies of the small sized TRSTE-5025 use proprietary technology yielding Audio Transducer makes it suitable a lower cost per 10G link than active for cell phones, hand held GPS, copper cables. Combined with per- portable alarms or for any other formance increases, lower weight and application where size constraints easier cable management, they enable and battery operation make it a a high data throughput interconnects up product of choice. The TRSTE-5025 is shipped in a tape and to 100 meters. The Avago AOC portfolio reel package making them fully compatible for solder reflow includes 10GbE SFP+, 40GbE QSFP+ production. The device operates from a voltage range of 2 to and 150G CXP active optical cable of- 4Vp/p at 90mA. Output frequency is 4000Hz in an operating ferings. AOCs use a cabling technology temperature range of -30 to +85°C. that accepts the same electrical inputs as a traditional cop- Transducer USA per cable, but use optical fiber “between the connectors” with www.tusainc.com electrical-to-optical conversion on the cable ends that improves speed and the link distance of the cables without sacrificing compatibility with standard electrical interfaces. The new SFP+ Li-ion battery monitor chipset and QSFP+ AOC products are the first to be released using the new Avago AtlasTM 75X embedded optical engine. The bit ensures battery life in HEVs and EVs error rates (BER) for Avago AOCs are 10-15 compared to DAC Toshiba Electronics Europe (TEE) has announced the launch a that is 10-12. Statistically, this translates to less than one bit error Li-ion battery monitor chipset for automotive applications. De- per day for the Avago AOC compared to a bit error every 1-2 signed for Hybrid Electric Vehicles (HEVs) and Electric Vehicles minutes for a copper cable. The reach of these AOCs is up to (EVs), the chipset comprises 20 meters for the SFP+ and QSFP+ versions. the TB9141FG monitoring Avago IC and the TMPM358FDTFG www.avagotech.com microcontroller. The product detects remaining battery Rapid prototyping developer kit level, equalizes battery levels (cell balancing) and can de- targets the Internet of Things (IoT) tect abnormal battery status. ARM announced availability of a rapid prototyping devel- The TB9141FG is industry’s oper kit for the Internet of Things (IoT) market that integrates first monitoring IC1 that monitors up to 16 cells, which can lead the Sprint Mobile Broadband USB 598U Modem by Sierra to component count reduction in a battery monitoring system. Wireless with the mbed micro- Furthermore, the TB9141FG is able to communicate in a noisy controller development platform, environment by differential signals using daisy chain communi- which is based on the ARM cation with neighbouring TB9141FGs. The TMPM358FDTFG is Cortex-M3 processor. The IoT a 32-bit RISC microcontroller built around an ARM Cortex-M3 market is set to grow exponen- core and compliant with functional safety levels (IEC61508 / tially, with Gartner estimating ISO26262). The company announced to prepare a software 50 billion connected devices by library which will be compliant with the IEC61508 and ISO26262 2020. The majority of these devices will be driven by con- functional safety standards and is also planning reference nected sensors, requiring the support of a large community models. These tools will simplify the implementation of battery of developers from highly diverse industries. The devices monitoring systems. The TB9141FG uses a 96V process and and sensors will be used across a wide range of key industry realizes 16-cell li-ion battery monitoring with a single IC. As a verticals, including automotive, transportation, healthcare, result, the TB9141FG contributes to the development of battery utilities, retail, and energy. Historically the creation of con- monitoring systems with fewer parts and at lower cost. It uses nected devices for such applications has involved compli- differential signal communication in a daisy chain topology cated development on 8-bit microcontroller architectures ensuring stable communications with other TB9141FG devices, with even further complexity involved when integrating a even in a noisy environment. This is an important issue for bat- modem. The rapid prototyping developer kit from Sprint and tery monitoring in automotive applications. The device realizes ARM overcomes these challenges by providing a simple C++ typical ±2mV cell voltage measurement accuracy, improving development environment on a full 32-bit high-performance the accuracy of battery state of charge (SOC) detection and microcontroller. These open source drivers will be pre-inte- contributing to more effective battery usage. It incorporates a grated for the Sprint Mobile Broadband USB 598U Modem, cell balance switch and is able to measure battery voltage while allowing developers to focus on their particular project with cell balancing. For use in ISO26262-compliant systems it also the reassurance of a fully integrated, functional modem. TB9141FG incorporates many self-test functions. ARM Toshiba Electronics Europe www.arm.com www.toshiba-components.com www.electronics-eetimes.com Electronic Engineering Times Europe December 2012 41


EETE DECEMBER 2012
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