VCXO-Based Frame Clock Frequency Translator

The MK2059-01 is a VCXO (Voltage Controlled Crystal Oscillator) based Clock Generator that produces common telecommunications reference frequencies. The output Clock is phase locked to an 8kHz (frame rate) input reference Clock The MK2059-01 also provides jitter attenuation. Included in the selection of output frequencies are these common system clocks: 1.544 MHz (T1) 2.048 (E1) 19.44 MHz (OC-3) 16.384 MHz (8x E1) This monolithic IC, combined with an external inexpensive quartz crystal, CAN be used to replace a more costly hybrid VCXO retiming module. Through selection of external loop Filter components, the PLL loop bandwidth and damping factor CAN be tailored to meet input Clock jitter attenuation requirements. A loop bandwidth down to the Hz range is possible. Generates T1, E1, OC-3 and other common telecom Clock frequencies from an 8 kHz frame Clock Configurable jitter attenuation characterisitics, excellent for use as a Stratum source de-jitter circuit 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 3.3 V power supply Available in Pb (lead) free package By Integrated Device Technology