AUDIOCOM'S SUPERCLOCKS 

We sell a selection of the finest parts and ready made gear in hi-end audio from Audio Consulting, Audiocom, Mantra Sound, Eichmann, Bybee, Jensen, and Blackgate.
11.2896 Mhz Superclock	11.2896 Mhz Superclock Check Latest Price Getting Started- A guide to clock frequencies and where to look. General Fitting Instruction's Specific Fitting Instruction's- Over 40 machines with detailed instructions. Technical Features The circuit topology uses a push-pull configuration combined with series mode oscillation ...
27 Mhz Superclock	27 Mhz Superclock Check Latest Price Getting Started- A guide to clock frequencies and where to look. General Fitting Instruction's Specific Fitting Instruction's- Over 40 machines with detailed instructions. Technical Features The circuit topology uses a push-pull configuration combined with series mode oscillation ...
Getting Started- A guide to clock frequencies and where to look. General Fitting Instruction's Specific Fitting Instruction's- Over 40 machines with detailed instructions. Technical Features The circuit topology uses a push-pull configuration combined with series mode oscillation to place the crystal at the lowest impedance point in the circuit, thus ensuring low noise levels at this critical stage. This type of oscillator produces a low distortion sine wave which is virtually free from phase noise. High quality temperature compensation capacitors are used to ensure long term stability. Output from the oscillator is then taken to a Mosfet RF buffer stage, which, having a very low input capacitance, ensures that its loading effects are negligible. The signal from the buffer is fed into the sine-square convertor integrated circuit which outputs a high precision square wave clock signal The oscillator section, buffer stage and the digital converter circuitry all have their own separate high quality low noise regulators. These regulators combined with a selection of Black Gate BG-NX Hi-Q, Sanyo Os-Con and high quality surface mount capacitors provide the Superclock with extremely low noise supply rails coupled with unequaled RF and digital noise suppression. Why is Superclock better? The clock forms the very heart of the CD player, virtually every process is controlled by or referred to it. The inherent problems with standard clocks are jitter and slow rise time, causing timing errors and interference with the DAC conversion process. Low level information is lost and cannot be retrieved. At the same time the crystal is forced into an operating mode far removed from its ideal operating parameters. These standard clock circuits do not generate an initial sine wave for conversion, they just produce a waveform similar in shape to a sawtooth. In contrast the Superclock has been designed to address all of the previous points commonly associated with OEM clocks. The Superclock produces a clean, accurate square wave with fast rise time and negligible jitter, resulting in greater data accuracy retrieval and more information conversion in the digital domain. Design Considerations Several hundred hours of work have gone into the design of the PCB for the Superclock. As the clock frequency is in the 10MHz - 30MHz range it is vital that the board is correctly laid out. At this high frequency, PCB tracks can act as small aerials, transmitting the clock signal around the CD Player and causing HF glare and hardness. The Superclock board layout is optimized for a short clock signal path to minimize losses whilst retaining a low impedance path for the DC supply rails. The PCB is double-sided 1.6mm glass fibre with a 2 oz per square foot copper coating. This board has a high density ground plane on both sided to reduce digital noise and extraneous signal radiation. Features Requires only four internal connections. Operation from a wide range of supply voltages, +9v to +24v. Is compact measuring only 1 7/8” (L) x 1 7/8” (W) x 7/8” (H) Natural texture of instruments and vocals. Greater dynamics and detail at all frequencies. Circuitry does not use feedback to generate analogue sine wave. Can be fitted to most CD PlayersTransports, Minidisc and DVD. Massive gains in resolution and detail. Extended accurate bass with solid weight control and presence. Spacious 3-D presentation.