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EETE JULAUG 2014

Reference platform enhances Bluetooth infotainment options Open Synergy’s Blue SDK (v4.3) for the CE4A Bluetooth Reference Platform is now available. This platform integrates Blue SDK with a variety of automotive-relevant profiles. Thanks to the update, it is now possible to display the album cover of the current track and download and browse calendar entries, to-do lists, and notes. In addition, support for missed calls has been improved. CE4A has adopted all new features provided by the update. Since 2009, device manufacturers have been able to use the reference platform to test the Bluetooth features in their products, ensuring conformity with the automotive industry requirements. The integrated Bluetooth stack with its wide range of features and the profiles with all mandatory and optional features of the Bluetooth specification enable manufacturers to implement each of the many test scenarios that they require to be able to install Bluetooth applications in car kits and infotainment systems. To do so, CE4A uses the Hands-free (HFP), Phone Book Access (PBAP), Message Access (MAP), Audio Video Remote Control (AVRCP), SIM Access (SAP), and Personal Area Networking (PAN) profiles. The new release also includes updates to other profiles, as well as adds new ones: AudioVideo SDK v3.0 – with AVRCP 1.6 and support for AVRCP Cover Art, enabling users to browse and display metadata, such as the album cover of the current track. CTN SDK 1.0 – implementation of the Bluetooth calendar, tasks, notes profile for v1.0, enabling users to download and browse calendar entries, to-do lists, and notes. Open Synergy www.opensynergy.com 50A point-of-load regulator features dynamic loop compensation With output uprated to 50A, this regulator offers high power density of 32.61 W/cm-cubed (534 W/in-cubed) and 25% more output current compared to previous version and in the same footprint. Dynamic Loop Compensation improves stability: paralleling of seven modules with phase-spreading delivers 350A, while ripple-and-noise is reduced to the lowest possible level. Ericsson’s 3E series BMR464-50A is a thirdgeneration digital point-of-load (POL) regulator that features Dynamic Loop Compensation (DLC) and also extends output current up by 25% to 50A from the 40A offered by the BMR464-40A, yet it comes in a fully compatible footprint. The product also features a full set of PMBus commands enabling systems architects to fully monitor and dynamically control the energy delivered to strategic components, such as processors, FPGAs and ASICs, down to a very low and highly economical level. Embedding the latest Dynamic Loop Compensation technology, the BMR464-50A runs the DLC algorithm as default following the enabling of the output. However, three more settings are also available via the PMBus for systems architects to choose the most appropriate method for the application with the DLC algorithm run every second or every minute or simply disabled. Ericsson Power Modules www.ericsson.com Rigol adds MSO functionality to its DS2000A and DS1000Z scopes The MSO extensions of Rigol Technologies’ digital oscilloscope series DS2000A and DS1000Z, announced in February, are now available. The mixed-signal extension provides additional functionalities to the user. Both models leverage Rigol’s ultra-vision technology from the DS6000 series, offering superior performance and functionality in this class. Designed to reduce test time in research, development and failure analysis applications, the DS2000A and DS1000Z series digital oscilloscopes facilitate detecting signal and device characteristics with comprehensive trigger functions, hardware based real time waveform records, replay, search and analysis functions. The multilingual user interface allows easy configuration of the oscilloscopes in the local language. The analogue specs are similar to the existing DS1000Z and DS2000A devices, but were extended by 16 digital MSO logic analyser channels. The sample rate is now 1 GS/s for 8 DIOs and 500MS/s for 16 DIOs. The wfrm/s waveform capture rate along with the 256 level intensity grading 8” display enables usrs to quickly identify infrequent events. Trigger functions include, among others, runt, setuphold, windows, edge, and automatic measurements with statistics. These digital oscilloscopes feature serial bus trigger and decodes such as I2C, SPI, RS232, CAN Bus (MSO DS2000A) as well as advanced math functions. Rigol Technologies www.rigol.com SiTime offers MEMS oscillator for wearables, IoT SiTime has announced the SiT1552, a drop-in replacement for a 32kHz temperature-compensated crystal oscillator. The device is expected to win design slots in wearable equipment and Internet of Things applications. SiTime claims the 1552, in its 1.5mm by 0.8mm chipscale package, is the smallest MEMS TCXO available and is 20 percent of the size of quartz TCXO. Also when compared with quartz TCXO the 1552 is half the power drawing less than 1-microamp and half the thickness at 0.55mm package height. The 300ms startup time is one tenth of quartz; the 500 million hours MTBF is 15 times higher than quartz and the shock resistance is 30 times that of quartz, SiTime said. The device can be used for such functions as a reference for real time clock (RTC) function, a sleep clock for connectivity – Bluetooth, Bluetooth Low Energy, WiFi. Additional features of the SiT1552 include: ±5 PPM frequency stability that enables two to three times longer battery life compared to a 180ppm quartz resonator, a programmable low voltage swing output that interfaces directly to the oscillator or real-time clock circuit in the applications processor or power management IC and 1.5 to 3.6V operation making it suitable for use with coin-cell or supercapacitor battery backup. SiTime Corp. www.sitime.com www.electronics-eetimes.com Electronic Engineering Times Europe July/August 2014 45


EETE JULAUG 2014
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