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.

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