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Renesas, AMD team for 5G O-RAN timing

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By Nick Flaherty


Renesas Electronics is working with AMD to provide timing synchronisation for FPGAs in 5G Next-Gen Radio (5G NR) for Open RAN designs.

The Renesas 8A34001 System Synchronizer for IEEE 1588 is being used within the AMD Zynq UltraScale+ RFSoC DFE ZCU670 Evaluation Kit and 5G NR reference design. Open RAN separates out the elements of the signal chain, making accurate and reliable timing synchronisation vital to the performance of the wireless network.

The 8A34001 generates ultra-low jitter; precision timing signals based on the IEEE 1588 Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE). It exceeds next-generation 5G radio requirements including synchronization and offers full ITU-T G.8273.2 T-BC/T-TSC class C and D compliance.

Renesas offers open-source SYNCE4L and PCM4L, that is built on open source PTP4L, and device drivers already in a Linux kernel for the 8A34001; while competing solutions rely on proprietary software that are difficult for end-customers to integrate and customize on to their SW platforms.

The AMD ZCU670 is an evaluation and development platform based on Zynq UltraScale+ RFSoC DFE, the latest AMD silicon for 5G NR targeting both FR1 and FR2 (mmWave) O-RAN applications.

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The 8A34001 performance has been verified on the ZCU670 evaluation platform and shown to exceed the 5G system requirements. The relevant compliance reports and test results are available from Renesas upon request. The solution will be made available as part of the AMD O-RAN reference design where it is used to implement the S-plane functionality in an O-RU reference design.

“We’re delighted that AMD chose our ClockMatrix Family as the timing platform for the Zynq RFSoC DFE Kit, the industry’s premier development platform for 5G applications,” said Zaher Baidas, Vice President of the Timing Products Division at Renesas. “It’s a testament to the performance of our devices as well the ease-of-use and design support that enables customers to reduce development time and effort.”

 “Our close collaboration with Renesas provides the key functionality for our O-RU reference designs,” said Brendan Farley, Corporate Vice President of Wireless Engineering at AMD. “We believe working with Renesas as an ecosystem partner to deliver verified and supported solutions will greatly reduce our mutual wireless customers’ development efforts.”

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The device is part of the Renesas ClockMatrix family of high-performance, precision timing solutions designed to simplify clock designs for high-speed applications.  As well as providing buffers, oscillators and clock synthesizer products, the system timing devices help resolve timing challenges in wireless infrastructure, networking, data centres, and consumer applications.

The AMD Zynq UltraScale+ RFSoC DFE ZCU670 Evaluation Kit is available today for qualified customers. The entire ClockMatrix family of timing devices is available from Renesas and its authorized distributors.

www.xilinx.com/products/boards-and-kits/zcu670.html; www.renesas.com/ClockMatrix.

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