The MK2049-36 is a Phased Locked Loop (PLL) based clock synthesizer that accepts multiple input frequencies. With an 8 kHz clock input as a reference, the MK2049-36 generates T1, E1, T3, E3, OC3 and other communications frequencies. This allows for the generation of clocks frequency-locked to an 8 kHz backplane clock, simplifying clock synchronization in communications systems. This part also has a jitter-attenuated Buffer capability. In this mode, the MK2049-36 is ideal for filtering jitter from clocks with high jitter. IDT can customize these devices for many other different frequencies. Contact your IDT representative for more details.

Features

  • Packaged in 20 pin SOIC
  • Pb (lead) free package
  • 3.3 V + 5% operation
  • Meets the TR62411, ETS300 011, and GR-1244 specification for MTIE, Pull-in/Hold-in Range, Phase Transients, and Jitter Generation for Stratum 3, 4, and 4E
  • Accepts multiple inputs: 8 kHz backplane clock or 10 to 50 MHz
  • Locks to 8 kHz + 100 ppm (External mode)
  • Buffer Mode allows jitter attenuation of 10 - 50 MHz input and x1/x0.5 or x1/x2 outputs
  • Exact internal ratios enable zero ppm error
  • Output clock rates include T1, E1, T3, E3, and OC3 submultiples
  • See also the MK2049-34 and MK2049-45

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
MK2049-36SILF Obsolete PSG20 SOIC 20 I Yes Tube
Availability
MK2049-36SILFTR Obsolete PSG20 SOIC 20 I Yes Reel
Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
MK2049-36 Datasheet Datasheet PDF 89 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-831 The Crystal Load curve Application Note PDF 308 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-839 RMS Phase Jitter Application Note PDF 149 KB
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 32 KB
AN-830 Quartz Crystal Drive Level Application Note PDF 59 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 52 KB
AN-800 Approved VCXO Crystals Application Note PDF 63 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
AN-801 Crystal-High Drive Level Application Note PDF 109 KB
AN-806 Power Supply Noise Rejection Application Note PDF 353 KB
PCNs & PDNs
PDN# : CQ-14-06R1 Revised Product Discontinuance Notice Product Discontinuation Notice PDF 407 KB
PDN# : CQ-14-06 MANUFACTURING DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 192 KB
PCN# : TB1303-02 Change of Tape & Reel Packing Method for Selective Products Product Change Notice PDF 361 KB
Other
External Loop Filters Solver Engineering ZIP 22 KB
PLL External Loop Filter Calculator Engineering ZIP 19 KB