NOTICE - The following device(s) are recommended alternatives:

The 840001I-34 is a two output LVCMOS/LVTTL Synthesizer and a member of the family of high performance devices from IDT. One output is the LVCMOS/LVTTL main synthesized clock output (Q) and one output is a three-state LVCMOS/LVTTL reference clock (REF_OUT) output at the frequency of the crystal oscillator. The device can accept crystals from 15.3125MHz to 42.67MHz and can synthesize outputs from 81.67MHz to 213.33MHz. The 840001I-34 is packaged in a 3mm x 3mm 16-pin VFQFN, making it ideal for use on space constrained boards.

Features

  • Two LVCMOS/LVTTL outputs, 22Ω typical output impedance
    One main clock output (Q)
    One three-state reference clock output (REF_OUT)
  • Crystal oscillator interface can accept crystals from 15.3125MHz to 42.67MHz, 18pF parallel resonant crystal
  • Q output frequency range: 81.67MHz to 213.33MHz
  • RMS phase jitter @106.25, (637kHz – 10MHz): 0.38ps (typical)
  • VCO range: 490MHz to 640MHz
  • Full 3.3V and 2.5V operating supply
  • -40°C to 85°C ambient operating temperature
  • Available in lead-free (RoHS 6) package

Product Options

Part Number Part Status Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
Obsolete VFQFPN 16 I Yes Tray
Availability
Obsolete VFQFPN 16 I Yes Reel
Availability

Documentation

Title language Type Format File Size Date
Datasheets & Errata
840001I-34 Datasheet Datasheet PDF 277 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-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-837 Overdriving the Crystal Interface Application Note PDF 133 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
PCNs & PDNs
PCN# : TB1912-02(R1) Convert Shipping Media
from Tube or Tray to Cut Reel
Product Change Notice PDF 5.71 MB
PCN# : TB1912-02 Convert Shipping Media
from Tube or Tray to Cut Reel
Product Change Notice PDF 5.61 MB
PCN# : A1904-01 Add Greatek, Taiwan as an Alternate Assembly Facility Product Change Notice PDF 983 KB
PCN# : A1511-01(R1) Add SPEL India as Alternate Assembly Location Product Change Notice PDF 596 KB
PCN# : A1511-01 Add SPEL India as Alternate Assembly Location Product Change Notice PDF 544 KB
PDN# : CQ-19-01(R1) Quarterly Market Declined PDN Product Discontinuation Notice PDF 1014 KB
PDN# : CQ-19-01 Quarterly Market Declined PDN Product Discontinuation Notice PDF 537 KB
Other
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB

Downloads

Title language Type Format File Size Date
Models
840001-34 IBIS Model Model - IBIS ZIP 70 KB