Specs Value
Device Type Differential Oscillators
156.25 MHz
Frequency Stability (ppm)
Operating Temp. Range (°C)
-40 to 85
Output Type
Supply Voltage (V)
Package Size (mm x mm)
Output Drive Strength*
Feature Pin
NF (no function)

*See datasheet for details

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This product ships directly from our factory, please allow 4-6 weeks for delivery.
Unit Pricing
Unit Count Unit Cost
1 - 99 $4.621
100 - 499 $4.621
500 - 999 $4.621
1,000 - 4,999 $4.20
>4,999 Contact Us
Available for sale in cut tape packaging. Some orders with quantities less than 50 pieces may be shipped in ESD zip bags. To order quantities greater than 5,000, please contact SiTime Sales or use the Chat below.
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Exceptional dynamic performance in real-life operating conditions

  • 70 fs RMS phase jitter (typ.)
  • ±20 ppm stability
  • Excellent system performance under environmental stress

20x better vibration sensitivity

  • Minimizes packet loss in high-vibration environments

0.01 ps/mV power supply induced jitter sensitivity

  • Simplify power supply design

2.0 x 1.6 mm package

  • Enables small form-factor system with stringent jitter requirement

Flexible programmable features

  • 14 common frequencies
  • 1.8 to 3.63 V
  • LVPECL, LVDS, HCSL, Low-power HCSL, FlexSwing: Flexible and low power, output drivers and terminations

Superior reliability

  • 1 billion hours MTBF
  • Lifetime warranty
  • Reduces field failures due to clock components and associated repair costs
  • Optical modules
  • 100G/200G/400G/800G Ethernet
  • Data centers
  • Coherent optics
  • Networking switches and gateways
  • AI/graphics cards
  • System clocking
  • Industrial applications
  • Ethernet switches and routers
  • FPGA

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Document Name Type
Manufacturing Notes for SiTime Products Other Quality Documents
SiTime Conflict Minerals Policy Other Quality Documents
SiT937x, SiT9501 Product Qualification Report Reliability Reports
TSMC Wafer SGS Report RoHS/Reach/Green Certificates
SiTime Environmental Compliance Declaration RoHS/Reach/Green Certificates
Certificate of Compliance-EU RoHS Declaration RoHS/Reach/Green Certificates

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

3225 6-Pins | 5032 6-Pins with CP | 7050 6-Pins with CP – Preview packages with QFN 3D step models

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Resource Name Type
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
Elite Platform - Transforming the Telecom and Networking Timing Market (Korean) Presentations
Elite Platform - Transforming the Telecom and Networking Timing Market (S. Chinese) Presentations
Elite Platform - Transforming the Telecom and Networking Timing Market (T. Chinese) Presentations
Elite Platform - Transforming the Telecom and Networking Timing Market Presentations
MEMS oscillators improve reliability and system performance in motor control applications White Papers
MEMS-Based Resonators and Oscillators are Now Replacing Quartz Presentations
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J-AN10006 発振器のPCBデザインのガイドライン Application Notes
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AN10025 Reliability Calculations for SiTime Oscillators Application Notes
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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発振器の耐性および信頼性 Technology Papers
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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
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Timing Solutions for Communications & Enterprise Brochures/Fliers
Advantages of MEMS Timing - Parameters Videos
SiTime MEMS Oscillators - Revolutionizing the Timing Market Videos
Jitter Part 1: Principles and Practice with an Overview of Period Jitter Videos
Jitter Part 2: Phase Noise and Phase Jitter Videos
Jitter Part 3: C2C Jitter and Long Term Jitter Videos
QFN 3225 6-Pins 3D Step Models
QFN 5032 6-Pins with CP 3D Step Models
QFN 7050 6-Pins with CP 3D Step Models
AN10066 LVDS Output with 600 mV to 1200 mV Swing Application Notes
Timing Solutions for Industrial Brochures/Fliers
SiT9501 Datasheet Datasheets
100G/200G/400G/800G Optical Modules Application Briefs
SiTime MEMS Timing Solutions for Optical Module Videos
Fronthaul Switches Application Briefs
SiT9501 Differential Oscillator - Enabling the Future of Optical Modules, Datacom Presentations
AN10067 Considerations for Measuring Phase Noise in Differential Oscillators Application Notes
SiT6760EB Evaluation Board User Manual User Manuals
SiTime MEMS First 工艺 Technology Papers
SiTime MEMS First 工艺 Application Notes
AN10073 How to Setup a Real-time Oscilloscope to Measure Jitter Application Notes
AN10071 Computing TIE Crest Factors for Telecom Applications Application Notes
AN10070 Computing TIE Crest Factors for Non-telecom Applications Application Notes
AN10072 Determine the Dominant Source of Phase Noise, by Inspection Application Notes
AN10074 Removing Oscilloscope Noise from RMS Jitter Measurements Application Notes
Top of Rack Switch / Leaf Switch Application Briefs
SiTime MEMS Timing Solutions for SmartNICs Videos
SiTime MEMS Timing Solutions for Heterogeneous Computing Videos
SiTime MEMS Timing Solutions for Data Centers Videos
水晶発振器とSi-MEMS発振器の比較 White Papers
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Datacenter – Host Bus Adapter Application Briefs
PAM4 for High-Speed Links, 400Gbps & Higher Application Briefs
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AN23033 Thermal Considerations for SiTime Products Application Notes
Three advantages of MEMS timing technology in industrial automation applications White Papers
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  • SiT9501AI-01P3-3300-156.250000N
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