Clock fanout buffers meet tight timing demands

The SKY53510/80/40 series from Skyworks enables the distribution of clocks to devices like SerDes for high-speed serial links.

Skyworks SKY53510/40/80Skyworks has introduced the SKY53510/80/40 family of Low-Power DC to 3.1 GHz Ultra-Low Additive Jitter Differential Clock Buffers. These devices are designed to assist engineers in creating clocking networks for high-speed buses used in PCIe Gen 7 5G/6G, AI, and cloud-based network equipment, setting a new standard in ultra-low jitter clock buffers.

At 156.25 MHz LVPECL, the ultra-low additive jitter ranges from 35 fs RMS typical to -47 fs RMS max, simplifying design and improving signal integrity.

The SKY53510/80/40 family includes a 3:1 input multiplexer (with crystal input), one single-ended output, and up to ten differential outputs, all housed in compact thermally enhanced QFN packages (7×7 mm, 6×6 mm, 5×5 mm). These devices are pin-compatible with industry-standard layouts.

Key applications for these clock buffers include:

  • PCIe Gen 3 through Gen 7
  • 56G/112G/224G SerDes
  • 5G/6G mMIMO radio systems
  • SyncE and broadcast video
  • Medical imaging
  • Aerospace/defense

Additional features of the SKY53510/80/40 series include:

  • Universal format translation for various inputs and outputs
  • Low power operation with separate core/output voltage supplies
  • Integrated LDOs for improved PSRR in noisy environments
  • Wide temperature range and low noise floor for reliable performance

Skyworks confirms that these clock buffers are now available for sampling and production orders, along with the SKY53510-EVB development kit.


Filed Under: Featured, Timing