SiTime, Silicon MEMS Oscillators and Clock Generators

SiT8208: Ultra Performance LVCMOS Oscillator

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The SiT8208 is an ultra performance oscillator for telecom, storage, networking and wireless applications. It is the industry's first MEMS  oscillator to deliver 500 femtoseconds of typical integrated RMS phase jitter (12kHz to 20MHz) and ± 10PPM frequency stability across all temperature ranges. It supports a rich set of configurable features such as any frequency between 1-80MHz and SoftEdge™ EMI reduction technology that improves system performance and ensures the fastest time-to-market. The SiT8208 is 100% compatible with legacy quartz, SAW and overtone oscillators in footprint and package, and replaces these devices without any design changes.



Frequency Range (MHz) 1-80
Frequency Stability (PPM) ±10, ±20, ±25, ±50
RMS Integrated Phase Jitter (12kHz - 20MHz) < 1ps
SoftEdge Rise/Fall Time Control
1ns - 4ns
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 1.8, 2.5 - 3.3 (Continuous)
Package LxWxH (mm) 2.5x2.0, 3.2x2.5x0.75, 5.0x3.2x0.75, 7.0x5.0x0.9
Status Production
  • Telecom & Optical equipment
  • Storage servers & SSD
  • RAID controllers
  • Routers
  • Switches
  • Wireless equipment
  • SONET, SyncE
  • Fiberchannel
  • 100M / 1G/ 10G Ethernet
  • LTE, GSM, CDMA, WiFi

Features Benefits
  • <1ps integrated RMS phase jitter (12 kHz to 20 MHz)
  • Excellent jitter margin for the most stringent applications such as SONET
  • Excellent frequency stability, as low as ±10 PPM
  • Better timing margin that enhances system stability and robustness
  • Extensive programmability
    • Frequency from 1 to 80MHz
    • Supply voltage of 1.8V, 2.5V to 3.3V
    • Frequency stability from ±10PPM to ±50PPM
  • Customized specifications for optimal system performance
  • Easy availability of any device specification within the operating range
  • Configurable drive strength using SoftEdge technology
  • Slower rise/fall time that reduce system EMI
  • Saves cost by driving multiple loads and eliminates external buffers
  • Three industry standard packages
  • 100% drop in replacement for quartz oscillator, SAW and overtone oscillators without any design changes
  • 3-5 weeks lead time
    • Any frequency
    • Any voltage
    • Any package
  • Reduce inventory overhead
  • Mitigate shortage risks


Measured Performance Reports on SiT8208

The following reports contain details of actual measurements on SiTime devices at the frequencies mentioned below and are intended to supplement the datasheet. Measurement conditions and equipment are specified in the individual files. If you desire a more detailed report than the ones provided below, please contact your local SiTime sales representative or email salessupport@sitime.com.

icon 10 MHz LVCMOS (147.57 kB) icon 32.768 MHz LVCMOS (148.59 kB)
icon 19.2 MHz LVCMOS (143.42 kB) icon 38.4 MHz LVCMOS (140.66 kB)
icon 20 MHz LVCMOS (144.28 kB)
icon 40 MHz LVCMOS (142.8 kB)
icon 25 MHz LVCMOS (141.4 kB) icon 50 MHz LVCMOS (140 kB)
icon 26 MHz LVCMOS (143.76 kB) icon 54 MHz LVCMOS (150 kB)
icon 27 MHz LVCMOS (144.58 kB) icon 75 MHz LVCMOS (140.51 kB)


Subject to change without notice



[1] Contact SiTime for different drive strength options for driving higher loads or reducing EMI


1.8V LVCMOS IBIS iconSiT8208_1v8v
2.5V LVCMOS IBIS iconSiT8208_2v5v
2.8V LVCMOS IBIS iconSiT8208_2v8v
3.3V LVCMOS IBIS icon SiT8208_3v3v