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

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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
"Specs" "Value"
Frequency 1 to 150 MHz
Frequency Stability (ppm) ±25, ±50
Operating Temperature Range (°C) -40 to 85 (Gr. 3), -40 to 105 (Gr. 2), -40 to 125 (Gr. 1), -55 to 125 (Ext. Cold Gr. 1)
Package Type (mm²) 2.0x1.6 mm, 2.5x2.0 mm, 3.2x2.5 mm
Oscillator Type SSXO-SE
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
Features AEC-Q100, EMI Reduction
Availability Production

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

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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