Electronics Technology


Low-jitter clock generator

30 September 2009 Electronics Technology

The Si5338 from Silicon Laboratories is a high-performance, low-jitter clock generator capable of synthesising any frequency on each of its four differential output clocks. The device accepts an external reference clock or crystal and generates four differential clock outputs, each of which is independently programmable to any frequency up to 350 MHz and select frequencies to 700 MHz.

Using patented MultiSynth technology, each output clock is generated with very low jitter and zero ppm frequency error. To provide additional design flexibility, each output clock is independently configurable to support any signal format and supply voltage. Housed in a 4 x 4 mm QFN package, the device is programmable via an I²C/SMBus serial interface and supports operation from a 1,8; 2,5; or 3,3 V core supply.

Supported output formats include LVPECL, LVDS, HCSL, CMOS, SSTL and HSTL. Phase jitter is a low 1 ps rms.

For more information contact NuVision Electronics, +27 (0)11 894 8214, gdeklerk@nuvisionelec.co.za, www.nuvisionelec.co.za



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