Skyworks timing solutions target next-gen PCIe requirements
Article By : Skyworks Solutions Inc.
Skyworks' Si5332 family of clock generators now supports PCIe 6.0 while maintaining backwards compatibility with older PCIe standards.
Skyworks Solutions Inc.’s Si5332 family of high-performance clock generators now supports the industry transition to PCI Express Generation 6 (PCIe 6.0) while maintaining backwards compatibility with older PCIe standards.
According to PCI-SIG, new applications including artificial intelligence, machine learning and edge computing are driving the need for higher performance and increased bandwidth interconnects for compute, switching and storage platforms in data centers.
“PCIe 6.0 is the future of the data center, and Skyworks is helping IC suppliers design with confidence when they make the transition to the latest PCIe standard,” said James Wilson, vice president and general manager of timing products at Skyworks. “Drawing from our decades of expertise in providing high-performance, low-jitter timing solutions for high-speed serial interconnect applications, we have qualified our Si5332 family to provide reference timing for the newest PCIe 6.0 applications.”
PCIE 6.0将数据速率提高到64GT/s，并使带宽高达256Gbps，有效地使PCIE 5.0的性能增加了一倍。对PCIE标准的最新升级可确保数据中心应用程序中使用的高速互连不会成为瓶颈，并补充了该行业向400G和800G以太网的过渡。与使用NRZ信号传导的PCIE标准的前几代不同，PCIE 6.0使用PAM4调制将两个位组合为具有四个振幅级别的单个符号。这种方法将传输速度加倍，但通过用三个较小的数据眼睛替换单个大数据眼睛来降低眼图。使用低抖动PCIE参考时钟可最大化PAM4数据目光并最大程度地减少比特率，这对于更快的传输速度是必不可少的。
The Si5332’s any-frequency clock synthesis, low jitter operation and support for PCIe 6.0 makes it ideally suited to replace fixed function oscillators, clocks and buffers with a single IC. The device features Skyworks proprietary MultiSynth fractional divider technology, which provides any-frequency synthesis and excellent jitter performance. The Si5332 is available in 6, 8 and 12-output options, with support for integrated format/level translation, LVPECL, LVDS, HCSL and LVCMOS, and 1.8-3.3V VDDO operation. When combined with support for PCIe 6.0, the Si5332 is well suited to operate as a data center clock-tree-on-a-chip, replacing multiple timing components with a highly integrated, high-performance solution. Device samples are available now.
In addition to this Si5332 product announcement, Skyworks announced PCIe 6.0 support in its PCIe Jitter Tool. Long regarded as the industry standard for measuring PCIe clocks and evaluating compliance to PCIe jitter specs, the PCIe Jitter Tool now allows users to take accurate jitter measurements on PCIe 6.0 reference clocks.
