SiTime

SiT5359 High-Frequency MEMS Precision Super-TCXOs

SiTime’s oscillators are optimized for ±50 ppb stability from 0°C to +70°C

Image of SiTime SiT5359 High-Frequency MEMS Precision Super-TCXOsThe SiT5359 MEMS oscillators from SiTime Corporation are precision MEMS super-TCXOs optimized for ±50 ppb stability from 0°C to +70°C. They support ±100 ppb stability in a wide temperature range from -40°C to +105°C. Engineered for dynamic performance, they are ideal for high-reliability telecom, wireless and networking, industrial, precision GNSS, and audio/video applications. Leveraging SiTime's unique DualMEMS™ temperature sensing and TurboCompensation™ technologies, the SiT5359 delivers a dynamic performance for timing stability in the presence of environmental stressors such as air flow, temperature perturbation, vibration, shock, and electromagnetic interference. This device also integrates multiple on-chip regulators to filter power supply noise, eliminating the need for a dedicated external LDO.

SiT5359 oscillators are custom programmed by DigiKey for any combination of frequency, stability, voltage, and pull range. Programmability enables designers to optimize clock configurations while eliminating long lead times and customization costs associated with quartz devices where each frequency is custom-built.

Features
  • Output 60.000001 MHz to 189 MHz, and 208 MHz to 220 MHz, in 1 Hz steps
  • Factory programmable options for short lead time
  • No activity dips or micro jumps
  • Resistant to shock, vibration, and board bending
  • On-chip regulators eliminate the need for external LDOs
  • Dynamic stability under airflow, thermal shock
    • ±50 ppb stability over temperatures from 0°C to +70°C
    • ±1 ppb/°C typical frequency slope (ΔF/ΔT)
    • 1.5e-11 ADEV at 10 second averaging time
  • 2.5 V, 2.8 V, 3.0 V, and 3.3 V supply voltage
  • LVCMOS output
  • RoHS and REACH compliant
  • Pb-free, halogen-free, and antimony-free
  • Digital frequency pulling (DCTCXO) via I²C
    • Digital control of output frequency and pull range
    • Up to ±3200 ppm pull range
    • Frequency-pull resolution down to 5 ppt
Applications
  • 4G/5G radios, small cells
  • IEEE1588 boundary and grandmaster clocks
  • Carrier-grade routers and switches
  • Synchronous Ethernet
  • Optical transport: SONET/SDH, OTN, Stratum 3
  • DOCSIS 3.x remote PHY
  • GPS disciplined oscillators
  • Precision GNSS systems
  • Test and measurement

SiT5359 Oscillator

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
MEMS OSC TCXO 100.0000MHZ LVCMOSSIT5359AC-FR-33VT-100.000000MEMS OSC TCXO 100.0000MHZ LVCMOS0 - Immediate
1847 - Factory Stock		$1,007.84View Details
Published: 2021-05-12