The iClock is primarily intended for sophisticated audio-visual installations where accurate synchronisation between video and digital equipment is paramount - but its remarkably sophisticated and unusual multiple clock feature would be very useful in mastering or transfer rooms too, where different sample rates are often required simultaneously. That jitter figure is 20 times better than that of the Smart Clock, and the clock accuracy is ten times better than the AES Grade 1 requirements. The specifications of the DDS system are impressive, with a claimed clock jitter of less than 1ps (RMS), and an accuracy of better than 0.1ppm. Clock signals are derived from an internal 172.8MHz master clock, which is referenced from either an internal temperature-compensated crystal oscillator (with a burned-in and 'pre-aged' crystal for maximum stability), or from any one of the three external reference inputs. The iClock works in a very different way to most master clocks, using Mutec's Direct Digital Synthesis (DDS) process to generate any standard video or digital reference signal, and with different clock rates at different outputs at the same time if required. The operation of the module is configurable through additional menu pages which become accessible automatically when a module is installed, the clock and sync rates being set up in output pairs in exactly the same way as are the unit's other outputs. The review model was the 'DP' version, with dual redundant power supplies (the standard model has a single mains power supply), and thus featured duplicated IEC mains inlets - making it ideal for broadcast applications or any role where fail-safe operation is required.Ī small blanking panel on the rear of the unit can be removed to allow installation of an 'option module' - the only current one adding a further four word-clock outputs. In addition, there is a 15-pin D-Sub connector which, if the iC-Alarm option card is installed, delivers remote alarm signals in case of system failure. There are then four video sync outputs, eight word-clock outputs, four AES outputs, and two S/PDIF outputs (all configurable in pairs).
#Iclock pro plus#
The rear panel carries an impressive collection of interfacing, starting with three external clock inputs: two 'universal' inputs on BNCs, plus an AES input on an XLR. Eight status LEDs highlight critical operational conditions, and four cursor keys are provided to navigate the configuration menus. The 1U rackmounting unit's dark-blue front panel is mostly given over to a large backlit display - the lighting can be set to turn off after a period of control inactivity.
#Iclock pro generator#
The Mutec iClock is an astonishingly flexible and very sophisticated master clock generator that delivers both video and digital audio clocks, synchronising to external references and generating an unlimited combination of different clock rates simultaneously. This new master clock generator from Mutec can transmit a bewildering array of clock signals at many different rates simultaneously.
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