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EETE FEB 2016

design & products Reader O f f er Ambiq’s Apollo sub-threshold 32-bit MCU is yours to evaluate This month Ambiq Micro is giving away five of its ‘Apollo EVB’ evaluation boards, worth $249 each for EETimes Europe’s readers to assess the capabilities of its cutting-edge Apollo sub-threshold microcontroller. The new suite of Apollo MCUs is based on the 32-bit ARM Cortex- M4 floating point microcontroller and redefines ‘low power’ with energy consumption that is typically five to ten times lower than that of MCUs of comparable performance (thanks to Ambiq’s patented Subthreshold Power Optimized Technology platform). On-board user interfaces include three user pushbuttons, an MCU reset pushbutton, four user LEDs, and a serial-wiredebug activity LED. The baseboard also includes four female expansion card connectors in individual 2x14 pin arrays, which also function as header test points. The baseboard also features an additional right-angle 2x14 header connector for attaching smaller expansion cards. The evaluation board integrates an on-board hardware debugger together with a complete SDK. In addition, the system also comes with FreeRTOS, all the necessary hardware drivers, plus a wide selection of code examples to enable quick and effective hardware and software evaluation, development, debug and prototyping. Check the reader offer online at www.electronics-eetimes.com VisualSim memory modelling library boosts algorithm exploration Mirabilis Design has released the VisualSim Memory modelling library, containing all current and prior versions of DDR, LPDDR, HBM, SRAM, JEDEC-compliant memory controller and a generic memory controller. System designers and architects can use this library to develop new memory sub-systems, explore new standards and algorithms, and optimize the memory access for their target application. The solution has been used to conduct trade-off between different speed/variations of DRAM, performance vs. power, and memory bandwidth efficiency. VisualSim Memory can be used with VisualSim resource, behaviour and cycle-accurate modelling libraries to construct models, simulate and analyze the complete system or SoC. This library is used to validate proposal, conduct trade-off decisions, timing, throughput, arbitration algorithm, power consumption analysis, and study systems behaviour with different configuration (single vs. dual channels, clock speed variations, addressing schemes, and controller algorithms). Mirabilis Design www.mirabilisdesign.com Pulse oximeter/heart rate sensor module for wrist-band designs With the MAX30102 pulse oximeter and heart rate integrated sensor module, Maxim Integrated provides an ultra-low power solution for wearable health and fitness applications. It is a complete system solution to save space and ease the design-in process for mobile and wearable devices. MAX30102 integrates red and IR LEDs to modulate LED pulses for oxygen saturation (SpO2) and heart rate measurements. It operates on a single 1.8V power supply and a separate 5V power supply for the internal LEDs. The device maintains a very small solution size without sacrificing optical or electrical performance; it integrates internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient light rejection. An evaluation platform with the integrated module and an accelerometer provides a solution for designers to quickly evaluate the module. In a 14-pin optical module 5.6 x 3.3 x 1.55 mm, and specified over the -40 to +85C temperature range, pricing starts at $4.13 (1000). An evaluation board is available. Maxim Integrated http://bit.ly/MAX30102 Power monitor IC keeps real-time eye on multiple loads Microchip Technology’s MCP39F511N supports widely-used standard power calculations and event monitoring of two electrical loads; the device is applied in system design and reduces system cost of power-monitoring wall outlets and smart plugs, power strips, AC/ DC power supplies and power distribution applications. The IC includes three analogue to digital convertors (ADCs) for voltage and two current load measurements, a 16-bit calculation engine, EEPROM and a flexible 2-wire interface. Microchip says that the dual-channel powermonitoring IC facilitates application design as it reduces firmware development and the number of ICs required for power monitoring of multiple loads. An integrated low-drift voltage reference in addition to the 94.5 dB of SINAD performance on each current measurement channel allows the MCP39F511N to monitor two current loads with 0.5% error across a 4000:1 dynamic range. The ability to measure active, reactive and apparent power, active and reactive energy accumulation, RMS current and RMS voltage, line frequency, and power factor combined with advanced, integrated features allows system designers of high-performance devices to reduce bill of materials and reduce time-to-market. The MCP39F511N is supported by the MCP39F511N Power Monitor Demonstration Board (Part no. ADM00706), which is available now for $200. In a 28- lead, 5x5 mm QFN package the IC is priced at $1.82 (5,000). Microchip www.microchip.com 46 Electronic Engineering Times Europe February 2016 www.electronics-eetimes.com


EETE FEB 2016
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