dCS Vivaldi Master Clock

dCS Vivaldi Master Clock

Vivaldi Master Clock is a powerful yet simple to use Grade 1 master clock based on our pioneering developments in studio and home audio. Featuring two banks of clock outputs capable of outputting different frequencies, Vivaldi Master Clock uses the latest groundbreaking technology from dCS.In a digital audio system, samples must be accurate in level and time but jitter, which exists in all digital systems, can result in timing errors in these samples, causing the analogue signal to be reconstructed inaccurately.In a dCS system, the DAC can act as the system master clock, but listening tests have shown that there is no substitute for a dedicated high quality master clock. dCS pioneered the use of external clocks in digital audio systems and this clocking technology has been continually refined so that our latest multi-stage Phase-Locked-Loop (PLL) system sets world-beating standards for accuracy and control of troublesome jitter from the incoming audio stream.All dCS Master Clocks are subjected to rigorous in-house testing. The crystal oscillators are pre-aged and selected for long term stability and then individually calibrated over a wide temperature range to ensure consistent optimal performance. Vivaldi Master Clock uses a sophisticated microcontroller system to ensure smooth correction as the temperature changes, and this approach gives a more stable result than either oven-controlled crystal oscillators or even atomic clocks.All dCS master clocks are designed to generate industry-standard Word Clock on 75 ohm coaxial cable. Other manufacturers’ equipment that has been designed to accept standard Word Clock can be used with our clocks.Vivaldi Master Clock may be slaved to an external reference (such as an atomic clock or GPS reference) if increased accuracy is desired. Our sophisticated multi-mode Phase-Locked-Loop (PLL) significantly reduces jitter from the reference source.Technical Specifications

• TypeClass 1 Master Clock.
• Clock Frequencies44.1, 48, 88.2, 96, 176.4 or 192kHz.
• ColourSilver or Black.
• Dimensions444mm/17.5” x 435mm/17.2” x 126mm/5.0”. Allow extra depth for cable connectors.
• Weight13.6kg/29.9lbs.
• Clock AccuracyBetter than +/-1ppm when shipped. Typically +/-0.1ppm when shipped and stabilised.
• Wordclock I/OTwo groups of 4 independently buffered outputs on 75Ω BNC connectors. Each group may be set to a different clock frequency
• Digital InputsExternal Reference Input on 1x 75Ω BNC connector. Accepts either Word Clock or AC coupled signals at 1MHz, 5MHz & 10MHz. Lock range is +/-300ppm.
• Startup TimeTypically 1 minute to rated accuracy
• Software UpdatesLoaded from CD-R or PC / Upsampler via Reference Input.
• Local ControldCS Premium Remote handset is supplied with Vivaldi DAC. RS232 (controlled by a third party device).
• Power SupplyFactory set for 100, 115, 220 or 230V AC, 50-60Hz.
• Power Consumption10 Watts typical/12 Watts maximum.