Standard Frequency ±10 to ±50 ppm Differential XO

The SiT9120 is a fixed-frequency differential oscillator that supports LVPECL and LVDS output signaling types. This device covers most commonly used frequencies between 25 MHz to 212.5 MHz, with RMS phase jitter of 0.6 ps (typ.). Unlike quartz or SAW based traditional oscillators, the SiT9120 is available in any combination of voltage (2.5 V to 3.3 V), frequency stability (±10, ±20, ±25, and ±50 ppm) and package (3225, 5032, 7050) options.

Program oscillators to get instant samples, optimized performance, and fast prototyping |Learn More

View related products:1 to 220 MHz|220 to 625 MHz|0.23 PS相位抖动|XO阵容

Industry standard packages for drop-in replacement of quartz oscillators without any board changes
Frequency 31 standard frequencies
Frequency Stability (ppm) ±10, ±20, ±25, ±50
Phase Jitter (rms) 0.6 ps
Output Type LVPECL, LVDS
Operating Temperature Range (°C) -20 to +70, -40 to +85
Voltage Supply (V) 2.5, 3.3, 2.25 to 3.63
Package Type (mm²) 3.2x2.5, 5.0x3.2, 7.0x5.0
Features Field programmable
Availability Production

0.6 ps (typ.) integrated RMS phase jitter (12 kHz to 20 MHz)

  • Excellent jitter margin for the most stringent applications such as 1 to 10GbE

Excellent frequency stability, as low as ±10 ppm

  • Better timing margin that enhances system stability and robustness
  • Extensive programmability
  • Fixed frequency between 25 to 212.5 MHz
  • LVPECL and LVDS output signaling types
  • Supply voltage of 2.5 V and 3.3 V
  • Frequency stability from ±10 ppm and ±50 ppm
  • Customized specifications for optimal system performance
  • Cost-effective
  • Easy availability of any device specification within the operating range

Three industry-standard packages

  • 100% drop-in replacement for quartz, SAW and overtone oscillators without any design changes
  • 4 to 6 weeks lead time
  • Reduce inventory overhead
  • 减轻短缺风险

  • 1Gb to 10Gb Ethernet
  • Optical modules
  • PCIe
  • FPGA
  • SATA/SAS
  • Fibre channel
  • System clocking
  • Wireless & backhaul
  • Fiber, cable, DSL
  • CPE & home gateway
  • Security appliances
  • Data centers
  • Precision GNSS
  • GPS/GNSS modules
  • Retail electronics
  • Long-range communications
  • Smart farming
  • VR & AR
  • 个人电脑
  • Audio & video

Narrow By:

Eval Boards(Contact SiTime)SiT6097 (3225) | SiT6086 (5032) | SiT6085 (7050)

Frequency Slope (dF/dT) Calculator- 计算频率斜率超过温度

Time Machine II ProgrammerProgram frequency, voltage, stability & more

Reliability CalculatorGet FIT/MTBF data for various operating conditions

Jitter Calculator and Plots– Convert phase noise to phase jitter, find phase noise plots

5032 6-Pins|7050 6-Pins– Preview packages withQFN3D step models

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Resource Name Type
SiT9120 150MHz LVPECL Freq. Test Reports
SiT9122 156.25MHz LVPECL Freq. Test Reports
SiT9120 100MHz LVPECL Freq. Test Reports
SiT9120 125MHz LVDS Freq. Test Reports
SiT9120 125MHz LVPECL Freq. Test Reports
SiT9120 133.33MHz LVDS Freq. Test Reports
SIT9120 13333MHz LVPECL. Freq. Test Reports
SiT9120 148.35164MHz LVDS Freq. Test Reports
SIT9120 148.35164MHz LVPECL. Freq. Test Reports
SiT9120 148.5MHz LVDS Freq. Test Reports
SiT9120 148.5MHz LVPECL Freq. Test Reports
SiT9120 150MHz LVDS Freq. Test Reports
SiT9120 155.52MHz LVDS Freq. Test Reports
SiT9120 155.52MHz LVPECL Freq. Test Reports
SiT9120 156.25MHz LVDS Freq. Test Reports
SiT9120 212.5MHz LVDS Freq. Test Reports
SiT9120 212.5MHz LVPECL Freq. Test Reports
SiT9120 25MHz LVPECL Freq. Test Reports
SiT9120 75MHz LVDS Freq. Test Reports
SiT9120 75MHz LVPECL Freq. Test Reports
SiT9120_1_LVDS_3p3 IBIS Models
SiT9120_1_LVPECL_2p5 IBIS Models
SiT9120_1_LVPECL_3p3 IBIS Models
Silicon MEMS Reliability and Resilience Presentations
Performance Comparison: Silicon MEMS Verses Quartz Oscillators Presentations
How to Measure Clock Jitter in Precision Timing Applications Presentations
How to Measure Phase Jitter and Phase Noise in Precision Timing Applications Presentations
How to Get Instant Oscillators with SiTime's New Field Programmer Presentations
Silicon MEMS vs Quartz Supply Chain Presentations
Elite Super-TCXOs for GNSS Applications (Chinese) Product Briefs
Field Programmable Timing Solutions for Medical Applications White Papers
MEMS振荡器在电机控制应用中提高可靠性和系统性能 White Papers
MEMS-Based Resonators and Oscillators are Now Replacing Quartz Presentations
与MEMS联系:机电接口 Presentations
Field Programmable Oscillators Datasheet 数据表
SiT9120 Datasheet 数据表
时间机器II MEMS振荡器编程器 Product Briefs
J-AN10006 発振器のPCBデザインのガイドライン Application Notes
AN10007 Clock Jitter Definitions and Measurement Methods Application Notes
J-AN10007 クロックジッタの定義と測定方法 Application Notes
SiTime発振器の信頼性計算方法 Technology Papers
J-AN10026 SiTimeのSiT9120/1発振器による10ギガビット・イーサネットアプリケーション用のジッタバジェット Application Notes
J-AN10028 プローブを使用した発振器の出力波形計測方法 Application Notes
J-AN10029 SiT9120/9121/9122/3821/3822(LVPECL/LVDS/CML/HCSL)差動ドライバの出力終端 Application Notes
MEMSおよび水晶ベース発振器の電磁場感受率の比較 Technology Papers
Electromagnetic Susceptibility Comparison of MEMS and Quartz-based Oscillators Technology Papers
MEMS発振器と水晶発振器の性能比較(耐衝撃と耐振動) Technology Papers
Shock and Vibration Comparison of MEMS and Quartz-based Oscillators Technology Papers
J-AN10033 発振器の周波数測定ガイドライン Application Notes
シリコンMEMS発振器材のおよび函数性 Technology Papers
Resilience and Reliability of Silicon MEMS Oscillators Technology Papers
SiTimeの MEMS First™ プロセス技術 Technology Papers
MEMS Resonator Advantages - How MEMS Resonators Work Part 2 Presentations
How to Measure Long-term Jitter and Cycle-to-cycle Jitter in Precision Timing Applications Presentations
Silicon MEMS Oscillator Frequency Characteristics and Measurement Techniques Presentations
AN10029 Output Terminations for Differential Oscillators Application Notes
SC-AN10007 时钟抖动定义与测量方法 Application Notes
Timing Solutions for Communications & Enterprise Brochures/Fliers
Phase Noise Measurement Tutorial 视频
Phase Noise Measurement Tutorial (Download MP4 Video) 视频
PCI Express Refclk Jitter Compliance using a Phase Noise Analyzer Presentations
Advantages of MEMS Timing - Parameters (Download MP4 Video) 视频
SiTime MEMS Oscillators - Revolutionizing the Timing Market (Download MP4 Video) 视频
SiTime MEMS Oscillators and Clock Generators at Electronics Summit (Download MP4 Video) 视频
SiTime's Time Machine II - Part 1: How to Install Oscillator Programming Software (Download MP4 Video) 视频
SiTime's Time Machine II - Part 2: How to Program Field Programmable Oscillators (Download MP4 Video) 视频
抖动第1部分:概述时期抖动的原则和实践(下载MP4视频) 视频
Jitter Part 2: Phase Noise and Phase Jitter (Download MP4 Video) 视频
Jitter Part 3: C2C Jitter and Long Term Jitter (Download MP4 Video) 视频
Jitter Part 1: Principles and Practice with an Overview of Period Jitter 视频
Jitter Part 2: Phase Noise and Phase Jitter 视频
Jitter Part 3: C2C Jitter and Long Term Jitter 视频
qfn 5032 6-pins 3D Step Models
QFN 7050 6-Pins 3D Step Models
Timing Solutions for Industrial Brochures/Fliers
SiTime MEMS First 工艺 Technology Papers