Description
The MK2058-01 is a VCXO (Voltage Controlled Crystal Oscillator) based clock jitter attenuator designed for system clock distribution applications. This monolithic IC, combined with an external inexpensive quartz crystal, can be used to replace a more costly hybrid VCXO retiming module. The device accepts and outputs the same clock frequency in selectable ranges covering 4kHz to 27MHz. A dual input mux is also provided.

Features
• Excellent jitter attenuation for telecom clocks
• Also serves as a general purpose clock jitter attenuator for distributed system clocks and recovered data or video clocks
• 2:1 Input MUX for input reference clocks
• VCXO-based clock generation offers very low jitter and phase noise generation
• Output clock is phase and frequency locked to the selected input reference clock
• Fixed input to output phase relationship
• +115ppm minimum crystal frequency pullability range, using recommended crystal
• Industrial temperature range
• Low power CMOS technology
• 20 pin SOIC package
• Single 3.3V power supply