SoC expands 5G radio unit performance, says Analog Devices

Radio unit developers can use the RadioVerse SoC to create the most energy efficient 5G radio units, says Analog Devices. 

The ADRV9040 is the first in the RadioVerse SoC series. It offers eight transmit and receive channels of 400MHz bandwidth and integrates advanced digital signal processing functions, including carrier digital up converters (CDUC), carrier digital down converters (CDDC), crest factor reduction (CFR) and digital pre-distortion (DPD). This expanded signal processing can eliminate the need for an FPGA, thereby reducing thermal footprint, and total system size, weight, power, and cost, advises Analog Devices. 

The SoC’s DPD algorithms were developed using advanced machine learning techniques and are optimised in close collaboration with major power amplifier (PA) vendors. The algorithms are fully tested and validated across 4G and 5G use cases, including various PA technology types such as gallium nitride (GaN). 

The SoC series provides advanced RF signal processing with expanded digital functionality and RF capacity designed to improve 5G radio unit performance and energy efficiency. The SoCs have been added to Analog Devices’ RadioVerse ecosystem. They combine Analog Devices’ Zero IF (ZiF) architecture with advances in functional integration and linearisation. The ZiF radio architecture simplifies RF filtering and signal chain components, reducing radio unit cost and development time for band and power variants designs, claims Analog Devices.

 Software defined RadioVerse transceivers are used in 4G and 5G RUs worldwide. Analog Devices has worked with Samsung to deploy 5G for some time. Dong Geun Lee, vice president and head of Hardware R&D Group, Network Business at Samsung Electronics, said: “We are excited for the successful launch of ADI’s new SoC, as we expect this cutting-edge technology will bring better 5G experience to consumers.”

Network operators are demanding power efficient radio units in the race to deploy the 5G infrastructure. With the exponential growth of wireless demand, energy efficiency is a key metric for operators as they seek to reduce their carbon footprint while expanding network capacity, says Analog Devices. The RadioVerse SoC series requires very low power compared to alternatives and implements advanced algorithms that deliver optimal radio unit system efficiency, says the company.

“RadioVerse SoCs are designed to optimise the full radio solution rather than just a single component or interface,” said Joe Barry, vice president of Wireless Communications at Analog Devices. “Each successive generation has provided expanded capabilities, bandwidth and performance, while improving overall [radio unit] efficiency. This new RadioVerse SoC series takes a big step forward by delivering multiple advancements in signal processing to meet the demanding needs of 5G,” he says.

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RA6T2 MCUs raise performance for motor control, says Renesas

Motor control in inverter appliances, building automation and industrial drives can benefit from the RA6T2 family of microcontrollers (MCUs), says Renesas Electronics. They are claimed to achieve higher performance and cost-efficient motor control and are supported with motor control tools and design kits. 

The RA6T2 MCUs feature peripheral functions and hardware accelerator designed specifically for motor control. They are intended for used in motor control designs in home appliances, smart home, industrial and building automation as well as inverter control. 

The 32-bit MCUs are based on the 240MHz Arm Cortex-M33 core, with 512kbyte flash ROM, 64kbyte SRAM and 16kbyte data flash.

Two independent ADC units offer high-speed conversion with a maximum speed of 0.16 microseconds and include a simultaneous sample and hold function for three channels to detect the three-phase current of a motor. Integral amplifiers can set gain according to the input voltage range and analogue components that were previously external are incorporated, including comparators which detect abnormal voltage input and over current. An adjustable PWM timer makes it easy to port existing algorithms. It also provides a PWM output cut-off safety function in the event of an abnormality. This feature set allows a single RA6T2 MCU to simultaneously control up to two brushless DC (BLDC) motors, says Renesas.

The embedded hardware accelerator includes both a trigonometric function unit (TFU) and an infinite impulse response (IIR) filter to offer increased performance and reduced CPU load enabling parallel tasks such as communication.

The TFU performs high speed calculations without the need for lookup tables, for effective use of ROM. The IIR filter offers co-efficient setting methods that make it easier to port from existing algorithms, says the company.

The RA6T2 MCUs are available in five package options, which are a 100-pin LQFP, 64-pin LQFP, 48-pin LQFP, 64-pin QFN and 48-pin QFN. 

They are supported by Renesas’ Flexible Software Package (FSP) for porting designs from other Renesas MCUs.

Renesas is also offering a range of design tools, including the RTK0EMA270S00020BJ motor control kit, a CPU board, an inverter board and a motor work bench graphical user interface (GUI) tool with real-time debugging and digital oscilloscope functionality. 

http://www.renesas.com 

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Industrial smart-sensor evaluation kit with IO-Link transceiver and STM32 MCU to aid design

Featuring a slim, 45.8mm x 8.3mm main board, the STMicroelectronics Steval-IOD04KT1 industrial-sensor kit can help simplify the development of compact IO-Link (IEC 61131-9) sensors for fieldbus-independent point-to-point bi-directional communication.

The main board integrates an STM32G0 microcontroller with ST’s L6364W IO-Link transceiver, IIS2MDC three-axis digital output magnetometer and ISM330DHCX iNemo inertial module with machine-learning core. The compact dimensions, permitted by the tiny chip-scale package sizes of the L6364W, in 2.5mm x 2.5mm CSP19, and the STM32G0 in 2.3mm x 2.5mm WLCSP25, allow small sensor enclosure. 

Fitted with a four-pole M8 industrial connector, the board connects to any IO-link main controller that supports IO-Link 1.1. A 10-pin expansion connector allows adding extra sensing modalities.

The companion STM32Cube software pack, STSW-IOD04K, provides the IO-Link device description (IODD) file, ST-proprietary IO-Link demo-stack, and routines for managing the L6364W and MEMS sensors. The software, which allows hot-plug activation, contains libraries that assist development of various types of sensors, and ST says it is designed for easy integration with additional X-CUBE software to further expand the sensor’s functionality.

The IC implements an IO-Link compliant electrical interface and digital features including wake-up recognition, a 15-byte data buffer, and quartz-free IO-Link clock extraction. Surge-pulse protection up to ±2.5kV, ESD protection and reverse-polarity protection are all on-chip, helping to save users from designing-in additional components and helping to cut down on PCB space and bill-of-materials costs. With 3.3V and 5.0V LDOs on-chip, and a digitally configurable step-down DC/DC converter, the L6364W can source up to 50mA load current to help developers meet the efficiency and EMC requirements of their application.

The L6364W is part of ST’s family of ICs that provides a complete set of solutions to help simplify IO-Link physical-layer implementation. It includes the L6360 IO-Link control-side transceiver and L6362A and L6364Q IO-Link device ICs.

The Steval-IOD04KT1 kit comes with everything needed to connect the sensor for evaluation and use, including an IO-Link M8-M12 adapter cable and ST’s STLink-V3MINI programmer. 

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Analog expands Linux distribution to support high-performance solution development

This year, as Linux open-source operating system marks its 30th anniversary, ADI has expanded its Linux distribution by adding more than 1,000 ADI peripherals supported by in kernel Linux device drivers.

The new Linux distribution focuses on ready-to-use in kernel Linux device drivers, offering a robust system for software development, reducing risk and development time with pre-existing code that is peer-reviewed and backed by industry. The distribution contains the essential components for running the built-in drivers and enables customers to integrate custom software. By providing hardware and software compatibility across the customers’ full ecosystem, the Linux distribution will help prevent hardware lock-in while also minimising software development needs. 

Designed to enable the rapid development of embedded solutions, these open-source device drivers streamline the software development process for ADI’s customers, providing access to tested, high-quality software to create solutions across a range of industries, including telecom, industrial, military, aerospace, medical, automotive, security and Internet of Things. This portfolio includes products from Maxim Integrated Products which is now part of Analog Devices. 

“With these drivers, we can serve our customers in a more holistic manner by streamlining the software development process and making it more cost and resource efficient,” said David Babicz, director of engineering at ADI. “Using open-source, tested code that they know will work in lockstep with their hardware means customers can focus on innovating instead of building software from scratch, helping them get their products to market faster.”

As part of the milestone celebration, ADI has released Kuiper Linux, a free Linux-based operating system based on Raspbian/Debian that is optimised for ADI peripherals and that supports ARM-based systems such as Raspberry Pi, Xilinx Zynq, Xilinx Zynq Ultrascale+ MPSoC, Intel Cyclone V SoC, Intel Arria 10 SX SoC and Intel Stratix 10 SoC. 

For the past 15 years, engineers within Analog Devices and collaborating organisations have developed Linux kernel device drivers in a range of Linux subsystems across ADI’s product portfolio including audio, battery charging and management, real-time clocks, power management, video, industrial input/output, accelerometers, amplifiers, A/D converters, D/A converters, beamformers, phased lock loop, gyroscopes, inertial measurement unit, input devices, networking, and universal serial bus. 

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