Renesas adds PCIe Gen5 to data centre ICs

Low-jitter 9SQ440 clock generator ICs by Renesas have been designed for next-generation Intel platforms used in high performance computing and data centre applications.

The 9SQ440 is claimed to be the industry’s first CK440Q-compliant server clock generator. Developed for the Intel CK440Q specification and future Intel Xeon processor requirements, the 9SQ440 is a flexible, robust, and high-performance synthesiser to address PCIe Gen5 design challenges, says Renesas.

They can be combined with Renesas’ PCIe timing solutions, including PCIe Gen5 clock buffers, and its infrastructure power and smart power stage (SPS) devices for data centres.

“PCIe clock generators are the heart of PCIe timing and with tighter specification requirements for the latest standard, PCIe Gen5-compliant clock generators like the 9SQ440 provide significant design flexibility and margin for customers,” said Bobby Matinpour, vice president, data centre business division at Renesas.

The 9SQ440 serves as a centralised clock generator for server CPU and PCIe clocks. It features a total of 20 differential outputs as well as less than 50fs RMS of PCIe Gen5 common clock phase jitter, to meet the timing requirements for topologies ranging from simple, single-board two-socket to complex, modular multi-socket systems.

Key features of the 9SQ440 clock generator are its PCIe Gen5 and UPI v2.0-compliant clocks for 32GT/s SerDes, seven dedicated 100MHz outputs w/7 OE# pins, three dedicated 25MHz platform time outputs, one dedicated 25MHz platform time daisy chain output, nine mux outputs selectable between 100MHz or 25MHz. It also supports multiple CPU socket topologies, ranging from a self-contained single socket to modular multi-socket approaches. The IC is supplied in a 8.0 x 8.0mm 100-pin dual-row QFN with a 0.5mm pitch and is available now.

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