1 to 150 MHz, AEC-Q100 Spread-spectrum Oscillator

The SiT9025 is an industry’s first AEC-Q100-compliant, automotive-grade spread spectrum oscillator. This device solves EMI problems by offering two techniques for emissions compliance: spread spectrum clocking and rise/fall time adjustment of the clock signal. The SiT9025 is supported by SiTime’s Time Machine II programmer that allows designers to instantly program spread modulation and/or drive strength to quickly reduce emissions levels. What’s more, the SiT9025 comes in three industry-standard packages to replace quartz products without any board design changes. This combination accelerates time to revenue by ensuring emissions compliance with minimum engineering effort.

View related products: RuggedizedAutomotive & High Temp lineup

Industry standard packages for EMI reduction and drop-in replacement of quartz oscillators without any board changes
Oscillator Type SSXO-SE
Frequency 1 to 150 MHz
Frequency Stability (ppm) ±20, ±25, ±50
Output Type LVCMOS
Operating Temperature Range (°C) -40 to 85 (Grade 3), -40 to 105 (Grade 2), -40 to 125 (Grade 1), -55 to 125 (Ext. Cold Grade 1)
Spread Profile Triangular, Hershey Kiss, Random
Spread Percentage (%) Center: ±0.125 to ±2.000, Down: -0.25 to -4.00
FlexEdgeTM Rise/Fall Time Yes
Voltage Supply (V) 1.8, 2.5 to 3.3
Package Type (mm²) 2.0x1.6 mm, 2.5x2.0 mm, 3.2x2.5 mm
Features AEC-Q100, EMI Reduction
Availability Sampling

Industry's first AEC-Q100- compliant, resonator-integrated spread spectrum oscillator

  • Up to 30 dB electromagnetic interference (EMI) reduction
  • Up to 134 times better electromagnetic susceptibility (EMS) than an external resonator plus an SSIC solution
  • Solves EMI problem and improves reliability in noisy environments

Flexible EMI reduction options

  • Wide spread range: center spread up to ±2.0%, down spread down to -4.0%
  • Configurable rise/fall time: 8 options
  • Configurable spread profile: triangular, Hershey kiss, or random

3 industry-standard packages

  • 100% drop-in replacement of quartz XO
  • Enables EMI reduction without board redesign, metal housing, or other expensive EMI reduction method

World's best cycle-to-cycle jitter: 8.5 ps

  • Minimize impact to system timing budget

70 g vibration and 10,000 g shock

  • Best robustness and reliability in harsh conditions

Extensive programmability

  • Any frequency from 1 to 150 MHz with 6 decimal-place accuracy
  • Supply voltage of 1.8 V; 2.5 to 3.3 V
  • Frequency stability from ±20 ppm to ±50 ppm

Ultra-fast lead times (4 to 6 weeks)

  • Reduce inventory overhead
  • Mitigate shortage risks
  • Automotive ADAS cameras
  • High-speed serial link
  • ADAS ECU

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Electronics Industry Citizen Coalition Template Other Quality Documents
Manufacturing Notes for SiTime Products Other Quality Documents
SiTime Conflict Metal Declaration Other Quality Documents
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SiTime Warranty on Date Code Other Quality Documents
Conflict Minerals Reporting Template Other Quality Documents

Eval Boards (Contact SiTime) – SiT6095 (2016) | SiT6081 (2520) | SiT6082 (3225)

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

Reliability Calculator – Get FIT/MTBF data for various operating conditions

2016 4-Pins | 2520 4-Pins | 3225 4-Pins – Preview packages with QFN 3D step models

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Resource Name Type
Increase automotive reliability and performance with ultra robust MEMS oscillators White Papers
AN10002 Termination Recommendations for Single-ended Oscillator Driving Single or Multiple Loads Application Notes
AN10006 Best Design and Layout Practices Application Notes
AN10007 Clock Jitter Definitions and Measurement Methods Application Notes
AN10025 Reliability Calculations for SiTime Oscillators Application Notes
AN10028 Probing Oscillator Output Application Notes
AN10033 Frequency Measurement Guidelines for Oscillators Application Notes
SiTime's MEMS First™ and EpiSeal™ Processes Technology Papers
SiT9025 Datasheet Datasheets
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
PCI Express Refclk Jitter Compliance using a Phase Noise Analyzer Presentations
QFN 2016 4-Pins 3D Step Models
QFN 2520 4-Pins 3D Step Models
QFN 3225 4-Pins 3D Step Models
AEC-Q100 Automotive Oscillators Product Briefs
Timing Solutions for Automotive Systems Brochures/Fliers
Timing Solutions for Industrial Brochures/Fliers
SiTime MEMS First 工艺 Technology Papers
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