Silicon expands precision clock broadcast range
A Silicon Laboratories product story
Edited by the Electronicstalk editorial team Sep 18, 2009
Silicon Laboratories has expanded its Any-Rate Precision Clock family with the Si5324, a low-jitter, highly-integrated clock IC, optimised for professional broadcast video applications.
The Si5324 replaces traditional multi-component video PLL solutions with a single clock IC, while providing 80 per cent lower jitter than competing solutions.
It can generate output frequency from 2kHz to 1.4GHz from any input frequency ranging from 2kHz to 710MHz.
This makes the Si5324 suitable for video capture, conversion, editing, display, and distribution equipment that must be synchronised within video studios.
The Si5324 delivers jitter performance of 5ps pk-pk and incorporates all PLL components into a single, highly-integrated device, eliminating the need for multiple PLL ICs, external filters and VCXO components.
Based on Silicon Labs' DSPLL technology, the Si5324 has a fully integrated, digitally programmable loop filter that supports loop bandwidths ranging from 4 to 525 Hz as well as a low-phase-noise internal VCO.
DSPLL technology enables the Si5324 to provide jitter filtering while eliminating sensitive noise entry points between loop filter and VCXO components, reducing design complexity and simplifying layout.
Any-rate capability makes it possible for the Si5324 to generate and synchronise all common HD video and audio reference frequencies without any component changes, allowing one design for multiple applications and simplifying design reuse.
Silicon also offers crystal oscillators (XOs) and voltage-controlled crystal oscillators (VCXOs) suited for broadcast video applications.
Silicon Labs' Si590/591/595 family of XO/VCXOs provides cost-effective, low-jitter clock generation and supports any frequency from 10 to 525MHz, any format (CMOS, LVDS, LVPECL, CML) and any supply voltage (1.8, 2.5, or 3.3V), with guaranteed low jitter of 1ps rms (max).
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