1 to 220 MHz, Differential Spread-spectrum Oscillator

The SiT9002 is the industry's first programmable, differential output, spread spectrum oscillator. It supports four programmable differential output signaling levels: LVPECL, LVDS, CML, and HCSL.

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

Industry standard packages for EMI reduction and drop-in replacement of quartz oscillators without any board changes
Oscillator Type SSXO-DE
Frequency 1 to 220 MHz
Frequency Stability (ppm) ±25, ±50
Operating Temperature Range (°C) -20 to +70, -40 to +85
Spread Profile Triangular
Spread Percentage (%) Center: ±0.25 to ±0.5, , Down: -0.50 to -1.0
Voltage Supply (V) 1.8, 2.5, 3.3
Package Type (mm²) 5.0x3.2, 7.0x5.0
Features EMI redution, Field Programmable
Availability Production

Industry's best cycle-to-cycle jitter, as low as 15ps

  • Enables system designers to minimize impact to timing budget

System-dependent EMI reduction, up to -17 dB on the third harmonic and -12 dB reduction on fundamental peak power (100 MHz spread spectrum frequency)

  • Cost-effective EMI reduction with fastest time to market

Flexible spread spectrum options

  • Multiple center spread/down spread modulation modes
  • Spread disable mode available: Optimize EMI performance in system design

Programmable voltage support of 1.8 V, 2.5 V or 3.3 V

  • Provide designers flexibility of using the same chip for different designs

Small form-factor

  • Save board space in space-constrained applications

Ultra-fast lead time (4 to 6 weeks)

  • Reduce inventory overhead
  • Mitigate shortage risks


  • CPU clocking
  • Industrial applications
  • Laptop computer
  • Networking applications
  • PCIe
  • SATA
  • USB 3.0

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

Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature

Reliability Calculator Get FIT/MTBF data for various operating conditions

5032 6-Pins 7050 6-Pins | 7050 6-Pins with CP– Preview packages with QFN 3D step models

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Resource Name Type
SiT9002 (LVPECL1, 3.3 V) IBIS Models
SiT9002 (LVDS, 2.5 V) IBIS Models
SiT9002 (LVDS, 3.3 V) IBIS Models
SiT9002 (LVPECL0, 2.5 V) 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
Silicon MEMS vs Quartz Supply Chain Presentations
MEMS Timing Solutions Improve Touchscreen Devices White Papers
MEMS oscillators improve reliability and system performance in motor control applications White Papers
MEMS-Based Resonators and Oscillators are Now Replacing Quartz Presentations
Getting In Touch with MEMS: The Electromechanical Interface Presentations
SiT9002 Datasheet Datasheets
AN10002 Termination Recommendations for Single-ended Oscillator Driving Single or Multiple Loads Application Notes
J-AN10005 SiTimeスペクトラム拡散クロック発振器 Application Notes
J-AN10006 発振器のPCBデザインのガイドライン Application Notes
AN10006 Best Design and Layout Practices 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
AN10025 Reliability Calculations for SiTime Oscillators 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
AN10028 Probing Oscillator Output 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
AN10033 Frequency Measurement Guidelines for Oscillators Application Notes
シリコンMEMS発振器の耐性および信頼性 Technology Papers
Resilience and Reliability of Silicon MEMS Oscillators Technology Papers
SiTimeの MEMS First™ プロセス技術 Technology Papers
SiTime's MEMS First™ and EpiSeal™ Processes Technology Papers
The top 8 reasons to use an oscillator instead of a crystal resonator White Papers
EMI Reduction Oscillators for Industrial, Automotive and Consumer Applications Product Briefs
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
AN10005 Spread Spectrum Clock Oscillators Application Notes
SC-AN10007 时钟抖动定义与测量方法 Application Notes
SC-AN10033 振荡器频率测量指南 Application Notes
Phase Noise Measurement Tutorial Videos
Phase Noise Measurement Tutorial (Download MP4 Video) Videos
PCI Express Refclk Jitter Compliance using a Phase Noise Analyzer Presentations
Advantages of MEMS Timing - Parameters (Download MP4 Video) Videos
SiTime MEMS Oscillators - Revolutionizing the Timing Market (Download MP4 Video) Videos
SiTime MEMS Oscillators and Clock Generators at Electronics Summit (Download MP4 Video) Videos
SiTime's Time Machine II - Part 1: How to Install Oscillator Programming Software (Download MP4 Video) Videos
SiTime's Time Machine II - Part 2: How to Program Field Programmable Oscillators (Download MP4 Video) Videos
QFN 5032 6-Pins 3D Step Models
QFN 7050 6-Pins 3D Step Models
QFN 7050 6-Pins with CP 3D Step Models
SiTime MEMS First 工艺 Technology Papers