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BOARDS & DEVELOPMENT KITS Development board hosts Renesas ARM Cortex-A9 core MCU Distributor Rutronik has Vekatech’s VK-RZ/A1H development board which carries the RZ/A1H embedded microprocessor from Renesas, an ARM Cortex-A9-based MCU. The embedded microprocessor RZ/A1H runs at up to 400MHz clock speed; integrates up to 10MB of on-chip RAM, and has an OpenVG compatible graphics accelerator, dual LCD-drivers and camera inputs. The internal SRAM can hold two layers of WXGA size images making external SRAM redundant. Using serial QSPI-flashes enables compact HW-designs with low pin count ICs.The VK-RZ/A1H board is equipped with the 10 MB-version of the RZ/A1H in the BGA256 package. The processor has 2x32 MB SDRAM and 2x8 MB QSPI-flash next to it. Debugging can be performed via standard J-TAG connector. An additional USB function interface, provided by a RL78/G1C connectivity microcontroller, is connected to the RZ/A1H’s UART. The Board Support Package includes U-Boot, Linux-GCC, FreeRTOS and CycloneTCP, both compiled for EWARM from IAR and can be downloaded from Vekatech’s website (www.vekatech.com). An SD-Card bootloader allows for easy loading and running of applications from the internal SRAM, SDRAM or serial flash. Rutronik www.rutronik.com Keysight applies 12-bit high-speed PCIe card to Optical Coherence Tomography Keysight Technologies’s U5303A high-speed data acquisition 12-bit PCIe card, resulting from a collaboration with YellowSys, a provider of IP processing firmware and software, is now available with an option dedicated to optical coherence tomography (OCT) technology. The Keysight data acquisition solution uses signal resampling which provides on-board enhancement of range analysis and offers a stable ADC signal sampling cadence. The solution focuses on clock stability while acquiring the signal in order to avoid sampling cadence changes. This adverse effect on signal acquisition typically occurs when an external k-clock is used. Signal processing is done in real time directly on the data acquisition card, significantly reducing the processing load on the host computer. The solution was designed using Keysight’s U5340A FPGA development kit, allowing portability of the OCT signal processing IP to other Keysight data acquisition cards, including future releases. There is no need for internal circuitry dedicated to OCT, and the easy migration of the processing IP is a key to future OCT technology developments. “OCT technology is evolving at a fast pace and we strongly believe in supporting developers to push the limits in real-time imaging and quality,” said Didier Lavanchy, operations manager of Keysight’s high-speed digitizers division. “Partnering with YellowSys enables us to meet the application demands using our FPGA development kit.” Keysight www.keysight.com RecPen board records sounds directly to a USB drive Brazilian chip manufacturer Liatec has created the RecPen board around its LT-1955 IC, the main component responsible for capture and reproduction of audio signals after storage on a pen drive. RecPen was designed as a development board for hobbyists and students willing to record sounds directly to a USB memory stick, without the need of any external devices. The board can reproduce and record any type of sound in Wav format, using either the on-board microphone input to capture sounds or even using any other audio source through the auxiliary audio jack. Because the board records and stores the audio signal directly to an external flash memory drive, storage capacity depends only and exclusively on the pen drive capacity, ordered in 256 different files regardless of individual size. The board also features a signal indicator for the end of the file, in order to alert the microcontroller that the audio that was being reproduced has reached its end. It also has a signal that identifies the presence or not of a USB memory stick. The kit can be used in professional applications such as elevators, telephone centrals, train and subway stations or other audio applications relying on prerecorded messages, allowing for greater message capacity and simpler file manipulation or exchange. Liatec www.liatec.net Doherty PA reference design for small cell applications To address the needs of small cell designers, Cree, Inc., has introduced the CDPA35045 asymmetric Doherty power amplifier (PA) reference design for the 3.5 to 3.7 GHz band. This band is an additional spectrum space intended to complement small cell technology by providing increased wireless system capacity for both licensed wireless carrier services and unlicensed public use, such as WiFi. Providing 10-W average output power and excellent predistortion (DPD) correctability, this proven Doherty PA design utilizes Cree’s 30-W CGHV27030S and 15-W CGHV27015S GaN HEMT devices, which can operate with either 50 V or 28 V drain supplies and enable enhanced design flexibility for telecommunications, wideband tactical radio, and radar applications spanning low frequencies to 6 GHz. The CDPA35045 was evaluated by engineers at Xilinx in a 3.5 GHz test radio platform that implemented Xilinx® CFR and DPD SmartCORE™ IP on a Xilinx ZC706 evaluation board featuring the company’s Zynq® 7Z045 All Programmable System-on-Chip (APSoC) as the processing engine. The evaluation proved that this combination of Xilinx Zynq APSoC devices and Cree® GaN devices results in highly efficient, low cost, and low power products that enable full flexibility of control processing and the radio signal. Cree, Inc. www.cree.com 30 Electronic Engineering Times Europe February 2015 www.electronics-eetimes.com


EETE FEB 2015
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