HCSL Crystal Oscillator

The XUN is an Ultra Precision HCSL Crystal Oscillator with 300fs typical phase jitter over 12kHz to 20 MHz bandwidth. Available in a wide frequency range from 16kHz to 670MHz, the IDT XUN Series Crystal Oscillator utilizes a family of proprietary ASICs, with a key focus on noise reduction technologies.
The 4th order Delta Sigma Modulator reduces noise to the levels that are comparable to traditional Bulk Quartz and SAW oscillators. With short lead-time, low cost, low noise, wide frequency range, excellent ambient performance, the XUN is an excellent choice over the conventional technologies. The XUN has stabilities as tight as ±20ppm with extremely quick delivery for both standard and custom frequencies.


  • Frequency range: 0.016MHz to 670MHz
  • Output Type: HCSL
  • Frequency Stability: ± 20ppm, ± 25ppm, ± 50ppm, or ± 100ppm
  • Supply Voltage: 1.8V, 2.5V, or 3.3V
  • Phase Jitter (1.875MHz to 20MHz): 100fs typical
  • Phase Jitter (12kHz to 20MHz): 300fs typical
  • Package options:
    • 5.0mm x 3.2mm x 1.2mm (JS6)
    • 7.0mm x 5.0mm x 1.3mm (JU6)
  • Operating Temperatures: -20°C to +70°C or -40°C to +85°C

Product Options

Choose from the options below, or use the Custom Part Configuration Utility.
Orderable Part ID Part Status Output Freq (MHz) Pkg. Dimensions Supply Voltage Freq. Stability Total (± PPM) Pkg. Code Buy Sample
XUN536100.000000I Active 100.00 5 x 3.2 x 1.1 3.3 - 3.3 25 JS6 Availability
XUN536156.250000I Active 156.25 5 x 3.2 x 1.1 3.3 - 3.3 25 JS6 Availability
XUN536156.250000X Active 156.25 5 x 3.2 x 1.1 3.3 - 3.3 25 JS6 Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
IDT Products for Wired Broadband Applications Application Briefs PDF 686 KB Sep 1, 2017
IDT XO HCSL Crystal Oscillator Datasheet - XUN Datasheet PDF 283 KB Jun 21, 2017
User Guides & Manuals
Fox XpressO to IDT Part Number Cross Reference Guide PDF 4.89 MB May 4, 2017
Fox XpressO to IDT Part Number Cross Reference (Spreadsheet) Guide XLS 3.38 MB May 4, 2017
Timing Products for Freescale i.MX 简体中文 Guide PDF 390 KB Jan 11, 2016
PCN# : FX1604-01 Change of MOQ for Select Packages Product Change Notice PDF 662 KB May 1, 2016
PCN# : A1505-02 PCN for Top Mark DateCode change Product Change Notice PDF 654 KB Jun 16, 2015
The IDT Communications Products Advantage Overview PDF 4.00 MB Mar 21, 2018
The IDT Consumer Products Advantage Overview PDF 4.01 MB Jun 30, 2017
The IDT Automotive Advantage 日本語 Overview PDF 3.55 MB May 26, 2017
IDT XU & XL Family of High-Performance Crystal Oscillators Product Brief PDF 661 KB Nov 21, 2016
IDT Clock Generation Overview 日本語 Overview PDF 1.83 MB Apr 28, 2016
IDT Clock Distribution Overview 日本語 Overview PDF 3.79 MB Apr 24, 2016