The IDT613 is a low cost, low phase noise, high-performance clock synthesizer for any applications that require low phase noise and low jitter. It is IDT's lowest phase noise multiplier. Using IDT's patented analog and digital Phase-Locked Loop (PLL) techniques, the chip can accept a 25 MHz crystal or clock input, and produces output clocks up to 157.5 MHz. The chip has separate power supplies for the clock outputs, allowing each output to be run at different voltages. It also allows the core of the chip to operate at 3.3 V, while the output clocks run at either 2.5 V or 3.3 V.


  • Packaged in 16-pin SOIC
  • Available in Pb (lead) free package
  • Uses a fundamental 25 MHz crystal or clock
  • Operating voltage of 3.3 V
  • Separate output voltage supplies which can run at 2.5 V or 3.3 V
  • Output clocks up to 157.5 MHz
  • Low phase noise: -110 dBc/Hz at 10 kHz
  • Low jitter of 36 ps (one sigma)
  • Advanced, low power, sub-micron CMOS process

tuneProduct Options

Part Number Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete SOIC 16 C Yes Tube
Obsolete SOIC 16 C Yes Reel


Title language Type Format File Size Date
Datasheets & Errata
star 613 Datasheet Datasheet PDF 248 KB
Application Notes & White Papers
AN-828 Termination - LVPECL Application Note PDF 322 KB
AN-831 The Crystal Load curve Application Note PDF 395 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 170 KB
AN-845 Termination - LVCMOS Application Note PDF 146 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 495 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 442 KB
AN-838 Peak-to-Peak Jitter Calculations Application Note PDF 115 KB
AN-839 RMS Phase Jitter Application Note PDF 233 KB
AN-832 Timing Budget and Accuracy Application Note PDF 131 KB
AN-834 Hot-Swap Recommendations Application Note PDF 153 KB
AN-830 Quartz Crystal Drive Level Application Note PDF 143 KB
AN-815 Understanding Jitter Units Application Note PDF 565 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.15 MB
AN-802 Crystal-Measuring Oscillator Negative Resistance Application Note PDF 136 KB
AN-801 Crystal-High Drive Level Application Note PDF 202 KB
AN-805 Recommended Ferrite Beads Application Note PDF 121 KB
AN-806 Power Supply Noise Rejection Application Note PDF 438 KB
AN-803 Crystal Timing Budget and Accuracy for Renesas Timing Clock Products Application Note PDF 108 KB
PDN# : CQ-15-01 (R1) Quarter PDN for Declined Market Product Discontinuation Notice PDF 550 KB
PDN# : CQ-15-01 Quarter PDN for Declined Market Product Discontinuation Notice PDF 547 KB
PCN# : A1208-01R1 Gold to Copper Wire Product Change Notice PDF 254 KB
PCN# A-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil Product Change Notice PDF 223 KB
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB


Title language Type Format File Size Date
613 3.3V IBIS Model Model - IBIS ZIP 3 KB

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