Clock IC integrates the crystal, frequency synthesizer and fan-out buffer

November 09, 2012 // By Julien Happich
Micrel's ClockWorks Fusion family of clock generation products is the first to integrate the crystal, frequency synthesizer and fan-out buffer in a 5x7mm LGA package, claims the company.

The first product in the series, the MX85 is aimed at simultaneously meeting the ultra-low jitter (less than 200fs) and integration requirements of 10/40/100 Gigabit Ethernet, PCIe 2.0/3.0, Fibre Channel, SAS/SATA, and high speed reference clocking for FPGA and SerDes applications.

Integrating the crystal delivers a complete clocking solution in a compact package that eliminates the design burden imposed by existing discrete solutions. With jitter performance that accounts for fan-out buffers, this custom configurable (OTP) clocking solution reduces customers’ bill-of-material (BOM) and footprint, simplifies PCB design, and enhances overall system performance. The MX85 can be configured up to five outputs of two different frequencies supporting LVPECL, LVDS, HCSL and CMOS logic types.

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