Apollo MxFE prepares for next-gen RF design

Aerospace and defence, instrumentation and next-generation wireless communications can use the Apollo MxFE software defined, direct RF sampling, wideband mixed signal front end platform from Analog Devices (ADI).

It enables next-generation applications such as phased array radar, electronic surveillance, test and measurement and 6G communications, explained ADI.

The growth of data intensive applications is increasing the need for wider bandwidths and more rapid processing and analysis of data for 5G, 6G, Wi-Fi 7 and Wi-Fi 8, radar, signal intelligence, and other applications at the network edge which require higher speed data conversion and processing capabilities with reduced electronic testing complexity.

Developed for application versatility and rapid customisation, the Apollo MxFE offers instantaneous bandwidths up to 10GHz while directly sampling and synthesising frequencies up to 18GHz (Ku Band). This monolithic 16nm CMOS device uses high dynamic range RF ADC and RF DAC cores with the best spurious free dynamic range and noise spectral density available on the market today, said ADI. As such, Apollo MxFE helps customers accelerate design cycles and bring new products to market faster and at lower cost, while future-proofing their product designs.

Bryan Goldstein, vice president, aerospace and defence at ADI, said: “Apollo MxFE gives design engineers the flexibility to design for . . . today, as well as an ability to enhance performance over time using simple, software-defined design changes”.

Apollo MxFE’s 4T4R product offers four 12-bit RF ADCs with a sample rate up to 20Gsamples per second, four 16-bit RF DACs with a sample rate up to 28Gsamples per second, an RF input bandwidth from DC to 18GHz (Ku Band) and an instantaneous bandwidth up to 10GHz. Apollo MxFE is believed to be the industry’s first integrated radio that is capable of directly interfacing to the emerging 6G frequency bands from 7GHz to 15GHz. 

The on-chip digital signal processing (DSP) offers a real-time FFT sniffer, a full-rate programmable FIR filter, a 128-tap complex FIR filter, fast-hopping NCOs, DDCs/DUCs, and a fractional sample rate converter. The DSP is dynamically configurable, allowing for rapid changes between narrowband and wideband profiles without taking down the JESD link. Apollo MxFE supports JESD 204B/C and a very short reach (VSR) interface.

Apollo MxFE’s 8T8R product offers eight RF ADCs with a sample rate up to 8GSPS, eight RF DACs with a sample rate up to 16GSPS, an RF input bandwidth up to 16GHz, and an instantaneous bandwidth up to 3GHz. The on-chip DSP offers similar features and functionality to the 4T4R device with double the number of digital blocks, all dynamically configurable.

Apollo MxFE is augmented by variable gain amplifiers, low noise LDO and Silent Switcher regulators, clocking and multi-chip synchronisation, along with embedded digital and software technologies including algorithms and security. 

The Apollo MxFE ecosystem includes a PLL/VCO synthesiser, the LTM4702 8A µModule regulator, a 10-channel precision synchroniser  and companion TxVGA and RxVGA solutions.

http://www.analog.com 

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Servers and processors are optimised for cloud native infrastructure 

Tracking the evolving portfolio of AMD EPYC 9004 series processors, Supermicro announces system optimised with up to 128 Zen 4c cores and AMD 3D V-Cache technology.

The cloud, AI / ML, storage and 5G / edge providers has unveiled servers powered by 4th Gen AMD EPYC processors for cloud native computing, with leading thread density and 128 cores per socket. In addition to rack density and scalable performance they are energy efficient to deploy cloud native workloads in more consolidated infrastructure, said Supermico. The systems are targeted for cloud operators to meet the ever-growing demands of user sessions and deliver AI-enabled new services. Servers featuring AMD 3D V-Cache technology excel in running technical applications in FEA, CFD, and EDA, said AMD. The large Level 3 cache enables these types of applications to run faster than earlier processors.

“We design and deliver resource-saving, application-optimised servers with rack scale integration for rapid deployments,” said Charles Liang, president and CEO of Supermicro. “With our growing broad portfolio of systems fully optimised for the latest 4th Gen AMD EPYC processors, cloud operators can now achieve extreme density and efficiency for numerous users and cloud-native services even in space-constrained data centres. In addition, our enhanced high performance, multi-socket, multi-node systems address a wide range of technical computing workloads and dramatically reduce time-to-market for manufacturing companies to design, develop, and validate new products leveraging the accelerated performance of memory intensive applications.”

“4th Gen AMD EPYC processors offer the highest core density of any x86 processor in the world,” confirmed Lynn Comp, corporate vice president, server product and technology marketing, AMD. 

The H13 Hyper-U servers are designed for the high-performance and density ideal for cloud-native workloads such as virtualisation and HCI, with a single 4th Gen AMD EPYC processor for cloud native computing of up to 128 cores. In addition, storage-optimised configurations are available that contain either 12x 3.5 inch drive bays or 24x 2.5 inch drive bays. Using a single CPU with the Hyper-U may reduce software licensing costs and cooling challenges compared to dual CPU servers while still providing maximum core density and doubling the memory capacity with support for up to 12 channels of DDR5 in 24 DIMM slots, advised Supermicro.

The company also announced H13 All-Flash EDSFF, the All-Flash NVMe storage systems powered by AMD EPYC 9004 Series processors, based on Zen 4c architecture. They are designed with the latest EDSFF technologies for capacity in a compact 1U chassis. Taking advantage of 128 PCIe 5.0 lanes, it supports 16 (7.5mm) EDSFF E3.S drives, or eight E3.S (x4) drives and four CXL devices in E3.S 2T form factor allowing memory expansion for use cases such as in-memory database applications.

There were also enhancements to the H13 GPU-optimised systems, the  1U and 2U dual-socket H13 Hyper series of rackmount servers, the single-socket H13 CloudDC and the H13 GrandTwin the 2U four-node system which is purpose-built for single-processor performance.

https://www.supermicro.com/

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HBT power amplifiers deliver 0.5W of linear output power for 5G without DPD

The GRF55xx series of InGaP HBT power amplifiers from Guerrilla RF are the first of a new class of 0.5W linear power amplifiers which target all primary cellular bands spanning 615 to 4200MHz. Guerrilla RF also offers GRF56xx variants which double the series’ output power capabilities.

The linear power amplifiers are intended for 5G wireless infrastructure applications that require exceptional native linearity over temperature extremes of -40 to +85 degrees C. Each can deliver up to 26dBm of output power with better than -45dBc of ACLR performance and EVM (error vector magnitude) levels less than 1.2 per cent, without the aid of supplemental linearisation schemes such as digital pre-distortion (DPD).

The ability to beat the -45dBc ACLR (adjacent channel leakage ratio) performance metric without DPD is critical for size, cost and power-sensitive cellular applications, for example in home and commercial repeaters / boosters, femtocells, picocells and cable loss compensators found in automobiles, explained Guerrilla RF.

The first devices to be formally released are the GRF5607 and GRF5608. The span frequency ranges of 703 to 748MHz and 746 to 830MHz, respectively. They are tuned to operate within the n12, n14, n18, n20 and n28 5G new radio (NR) bands.

The ability to beat the -45dBc ACLR performance metric without DPD is critical for cellular applications like home and commercial repeaters/boosters, femtocells, and picocells, as well as cable loss compensators which are used in conjunction with automotive ‘shark fin’ antennas. In each of these use cases, the sensitivity to cost, power and size constraints prohibits the use of elaborate linearization techniques like DPD. Instead, designers must rely on the power amplifier’s native linearity to meet the stringent emissions mask requirements imposed by the latest 5G standards.

“By essentially doubling the output power, GRF is enabling customers to increase the range of their systems by up to 40 per cent,” said Jim Ahne, Guerrilla RF’s vice president of Automotive and 5G products. “Given that these new devices are pin-pin compatible with the previously released GRF55xx series, customers now have an easy path to upgrading the range capabilities of their existing repeater/booster and compensator platforms,” he added.

The GRF5607 and GRF5608 are supplied in pin-compatible 3.0 x 3.0mm, 16-pin QFN packages.

Samples and evaluation boards are available now for both the GRF5607 and GRF5608. 

https://www.guerrilla-rf.com 

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AMD uses Zen 4c core architecture for EPYC 97X4 data centre CPUs

Two workload optimised processors are based on AMD’s new Zen 4c core architecture. The AMD EPYC 97X4 cloud native-optimized data centre CPUs extend the EPYC 9004 series of processors to deliver the thread density and scale needed for leadership cloud native computing. 

The company has also announced the 4th Gen AMD EPYC processors with AMD 3D V-Cache technology, which are suitable for the most demanding technical computing workloads, said AMD. “Forrest Norrod, executive vice president and general manager, Data Center Solutions business group, AMD, commented: “We closely align our product roadmap to our customers’ unique environments and each offering in the 4th Gen AMD EPYC family of processors is tailored to deliver compelling and leadership performance in general purpose, cloud native or technical computing workloads.” 

The AMD EPYC 97X4 processors, with up to 128 cores, deliver up to 3.7 times throughput performance for key cloud native workloads compared to Ampere . The 4th Gen AMD EPYC processors provide customers up to 2.7 times better energy efficiency and support up to three times more containers per server to drive cloud native applications at the greatest scale. 

At the Data Center and AI Technology Premiere, Meta confirmed that these processors are well suited for mainstay applications such as Instagram and WhatsApp, with “impressive performance gains” compared to 3rd Gen AMD EPYC across various workloads, while offering substantial TCO improvements. 

Technical computing enables faster design iterations and more robust simulations to help businesses design new and compelling products. The 4th Gen AMD EPYC processors with AMD 3D V-Cache technology extend the AMD EPYC 9004 series of processors to deliver the world’s best x86 CPU for technical computing workloads such as computational fluid dynamics (CFD), finite element analysis (FEA), electronic design automation (EDA) and structural analysis. 

Optimised for the most demanding HPC applications, the processors deliver performance gains of up to five times when compared to the previous generation HBv3 and scale to hundreds of thousands of CPU cores.

The 4th Gen AMD EPYC processors are available today and are feature and socket compatible with existing AMD EPYC 9004 series CPU-based systems, for a seamless upgrade path. 

http://www.amd.com

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