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EETE JULAUG 2014

A8E_EE-Times-Eur_2-375x10-875_A8.qxd 5/27/14 3: incorporated in the PICMG (PCI Industrial Computer Manufacturers Group) specification Surface Mount (and Plug In) Transformers and Inductors See Pico’s full Catalog immediately www.pic oelect r onic s.com Low Profile from .18"ht. Audio Transformers Impedance Levels 10 ohms to 250k ohms, Power Levels to 3 Watts, Frequency Response ±3db 20Hz to 250Hz. All units manufactured and tested to MIL-PRF-27. QPL Units available. Power & EMI Inductors Ideal for Noise, Spike and Power Filtering Applications in Power Supplies, DC-DC Converters and Switching Regulators Pulse Transformers 10 Nanoseconds to 100 Microseconds. ET Rating to 150 Volt Microsecond, Manufactured and tested to MIL-PRF-21038. Multiplex Data Bus Pulse Transformers Plug-In units meet the requirements of QPL-MIL-PRF 21038/27. Surface units are electrical equivalents of QPL-MIL-PRF 21038/27. DC-DC Converter Transformers Input voltages of 5V, 12V, 24V And 48V. Standard Output Voltages to 300V (Special voltages can be supplied). Can be used as self saturating or linear switching applications. All units manufactured and tested to MIL-PRF-27. 400Hz/800Hz Power Transformers 0.4 Watts to 150 Watts. Secondary Voltages 5V to 300V. Units manufactured to MIL-PRF-27 Grade 5, Class S (Class V, 1550C available). Delivery-Stock to one week for sample quantities PICO Electronics, Inc. 143 Spar ks Ave. Pel ham, N. Y. 10803 E Mail: info@picoelectronics.com www.picoelectronics.com Pico Representatives Germany ELBV/Electronische Bauelemente Vertrieb E mail: info@elbv.de Phone: 0049 (0)89 4602852 Fax: 0049 (0)89 46205442 England Ginsbury Electronics Ltd. E-mail: rbennett@ginsbury.co.uk Phone: 0044 1634 298900 Fax: 0044 1634 290904 in May 2012, offers a better choice for compact applications. The existing COM Express design know-how can be used to quickly expand a product series for even the smallest applications. With DC power input ranging between 4.75 and 20 volts, a broad base of applications with 5, 12 and 19 volts are possible. Fig. 3: Height comparison of Qseven module versus COM Express Mini in typical application. Rectangular in shape, COM Express Mini is 5% smaller than the Qseven module. Qseven was specified by congatec, MSC and Seco in July 2008 as an independent standard for small applications and incorporated in the SGET (Standardization Group Embedded Technologies) in 2012. By using the established MXM connector, it was simultaneously possible to reduce the costs for the connector and achieve a lower overall height. Because Qseven supports 2x24 Bit LVDS, it can control higher-resolution displays than COM Express Mini, which only supports 1x24 Bit LVDS. Revision 2.0 of the Qseven specification also extends the use of ARM processors in order to achieve an even lower power dissipation. Today, there are more than 20 manufacturers who develop and sell Qseven modules in over 100 different variations. The technical features of both modules are very similar (see Fig 4). Ultimately, the choice of module is down to the experience of the user. If the aim is the “miniaturization” of an existing COM Express solution, the Mini module is the preferred solution; for complete redesigns, Qseven usually is the preferred choice. Similarities of COM Express Mini and Qseven with Bay Trail Both module standards can support single-core to quad-core processors of the embedded Atom E3xxx series as well as the appropriate embedded Celeron processors. The graphics are based on Intel Gen7, as in the HD3000 of Ivy Bridge. However, with the new Atom and Celeron processors there are only 4 instead of 16 execution units. In addition to the latest DirectX version 11 and OpenGL in version 3.2, hardware encoding/decoding of HD video, 3D stereoscopic output and two independent HD displays are supported. With the addition of AES-NI, the Atom and Celeron processors are for the first time providing hardware support for the widely used AES encryption algorithm. It is therefore now also possible to encrypt or decrypt data for transmission or storage with these processors in real time without burdening the CPU significantly. This is particularly important when using semiconductor mass storage devices (SSDs), since data can never be completely deleted. Intel® Virtualization VTx and thermal monitoring are also supported. The new and improved power management supports power saving modes up to C6 and – like some previous models – Intel SpeedStep® technology. For added security, it is possible to designate a specific boot loader with the UEFI (Unified Extensible Firmware Interface) in the secure boot option to prevent the execution of malicious software and other unwanted or unauthorized programs. With USB 3.0, DisplayPort, SATA Gen 2 and PCI Express Gen 2, the new Bay Trail processors are equipped with all the latest interfaces on-chip, thereby providing a true system-on-chip (SoC). The modules run with up to 8 GB soldered DDR3L memory; standard 4GB eMMC Flash is available for mass storage which can be used as SSD or boot de- Fig. 4: Feature comparison of Qseven versus COM Express Mini pin outs. www.electronics-eetimes.com Electronic Engineering Times Europe July/August 2014 31


EETE JULAUG 2014
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