Flexible in-circuit clocks for gaming and business

Through replacing the traditional multi-component phase-locked loop (PLL) system with a single clock integrated circuit, the clocks deliver twice the frequency flexibility, 70 per cent lower jitter and 30 per cent lower power than competing timing products.

The Si5350/51 clocks are optimised for cost-sensitive consumer electronics products such as DVRs, HDTVs, set-top boxes and gaming systems as well as printers, projectors, video conferencing, blade servers, single-board computers, RAID systems, femtocells and telecom customer premises equipment.

Utilisation of Silicon Labs' patented MultiSynth technology provides the devices with a smaller footprint than any three-PLL or four-PLL clock generators on the market today.

Unlike traditional clock generators that require a separate PLL to synthesise each non-integer related output frequency, the Si5350/51 devices synthesise a unique frequency on each of their eight output clocks.

By integrating clock synthesis in the device's output divider stage rather than its PLL, the Si5350/51 provides the equivalent clock synthesis capability of eight PLLs while reducing board space and power consumption.

The Si5350/51 generates all system clocks (audio, video, interface and SoC) and can synthesise any combination of eight unique, non-integer-related frequencies up to 133MHz with 0ppm frequency error.

It can also simultaneously generate free-running clocks from a crystal input, as well as clocks synchronised to a reference clock or analogue control voltage input, allowing multiple board-level timing domains to be clocked from a single device.