048_EETE-VF

EETE JANUARY 2013

High current filter chokes with inductance Bluetooth low energy software stack supports range from 1microH up to 15mH over-the-air downloads and multiple stacks Now available from Total Frequency Control, the type DRH Texas Instruments Incorporated has released the company’s high current filter chokes come with an inductance range newest BLE-Stack 1.3 software to support continued devel- from 1microH up to 15mH with a maximum current density of opment and enhancement of Bluetooth low energy. TI’s BLE- 8.0A/mm² over an operat- Stack 1.3 includes over-the-air firmware downloads (OAD), ing temperature of -20°C to which enable updates to CC2540/1 firmware to be downloaded +80°C. Designed for use in from a central device, such as a phone, tablet or PC onto the switching regulated power CC2540/1 system-on-chip (SoC) directly over the RF link. OAD supply applications, low support helps customers save time and simplify the software profile and self-leading, the upgrade process, leaving more time to design and create new finished product is varnish Bluetooth low energy devices and applications. Additionally, for coated or insulated with UL customers using Bluetooth low energy and proprietary imple- shrink-sleeving. The inductors also feature a useful central mentations, TI’s Boot Image Manager (BIM) allows multiple firm- hole to facilitate automatic mechanical mounting. Power ware stacks to reside on a single CC2540/1 SoC. BIM enables density dictates the dimensions which vary from 3 to 5mm in an end-product to support two different Bluetooth low energy height and 21 to 28mm in diameter. The product exhibits low stacks or a single Bluetooth low energy stack and a single DCR values and high saturation currents. 2.4GHz proprietary stack. The new software features are further Total Frequency Control supported by sample applications with extensive profile support www.tfc.co.uk and include upgraded network processor UART and SPI inter- faces for improved power management control. To further the development of new Bluetooth low energy applications, the new Reference design for advanced browsing BLE-Stack 1.3 also runs on TI’s SensorTag development kit and Mini-kit. The SensorTag development kit is supported by OAD, control of TVs and set-top boxes iOS app and the Bluetooth low energy device monitor. The nRFready Smart Remote 2 unveiled by Nordic Semicon- Texas Instruments ductor is a complete hardware and software reference design www.ti.com featuring a multi-touch touchpad, 6-axis motion sensing, and full QWERTY keyboard. Surface-mount bidirectional transient voltage The reference design leverages Nordic’s latest suppressors with surge capability to 3kW multi-protocol nRF51822 Vishay Intertechnology has introduced a new series of SoC to offer simultaneous surface-mount TRANSZORB bidirectional transient volt- single chip Bluetooth low age suppressors (TVS) in the SMC DO-214AB package. For energy and Nordic 2.4GHz automotive and telecom applications, SMC3K series devices proprietary Gazell RF protocol support, and provides a unique, feature high surge capability to 3 kW at 10/1000 μs. Offering feature-rich platform for developing remote controls for the lat- twice the surge capability of conventional 1.5 kW devices in est Internet-enabled and Web 2.0 digital TVs and set-top boxes SMC packages, the Prime application examples include audio, video, gaming, web new SMC3K series browsing, social media, and online shopping, where an essen- devices increase tial ingredient to the success and adoption of these services design flexibility and by end users is the remote control, which can spell the differ- compatibility. In ad- ence between frustration and a rich, intuitive, and engaging dition, the TVS’ new end-user experience. Designed specifically to deliver the latter, low-stress, sym- the nRFready Smart Remote 2 features a multi-touch enabled metric lead frame TouchPad from Synaptics, a miniaturized QWERTY keyboard, a designs provide 6-axis motion sensing solution from Invensense, and an ultra- the high reliability low power accelerometer from STMicroelectronics. The inclu- required for automotive applications. Designed to protect sion of Nordic’s latest nRF51822 multi-protocol SoC (see ‘About sensitive electronic equipment against voltage transients in- nRF51822’ below) allows remote control manufacturers to bring duced by system inductive load switching and lightning, the products to market that can simultaneously and adaptively sup- AEC-Q101-qualified devices are suitable for LNB and tele- port Bluetooth low energy (via the HID over GATT profile) and com power line lightning surge protection, and for automo- proprietary 2.4GHz wireless technology in the same product tive motor and battery power line inductive surge protection. form factor, using identical data formats over the wireless link to The SMC3K series consists of 19 TVS devices with stand-off minimize design complexity, and without requiring any firmware voltages from 22 V to 78 V. The devices offer a peak pulse changes. This offers developers a high level of commercial pro- surge current from 23.8 A to 84.5 A, maximum clamping volt- tection against future consumer technology trends by allowing age from 35.5 V to 126 V, fast response times, low incremen- them to offer a maximum range of alternative options to their tal surge resistance, and operating temperature from - 55 to customers. The nRFready Smart Remote 2 reference design + 150°C. The SMC3K series meets the MSL Level 1 stan- even features an IR (Infrared) LED that can be used to add sup- dard, per J-STD-020, LF maximum peak of 260°C. port for legacy IR-controlled equipment too. Vishay Intertechnology Nordic Semiconductor www.vishay.com www.nordicsemi.com 48 Electronic Engineering Times Europe January 2013 www.electronics-eetimes.com


EETE JANUARY 2013
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