SiTime Oscillators (XO, TCXO, OCXO, 32 kHz)

MEMS Oscillators That Outperform Quartz

SiTime's programmable MEMS-based oscillators deliver breakthrough size, reliability, and thermal stability. Whether you need low power 32 kHz for wearables or high-stability TCXOs for 5G, SiTime offers a drop-in quartz replacement, without the quartz limitations.

 

Product Types

 

 

XOs

General-purpose oscillators with programmable frequency and format

 

 

TCXOs

Temperature-compensated oscillators with tight stability (±0.1 ppm)

 

SiT5356 (±0.1 ppm Super TCXO, 1 60 MHz, -40 °C to +105 °C)

  • Outstanding dynamic stability up to 105 °C; supports LVCMOS/clipped‑sine outputs
  • Low-noise, no micro‑jumps or activity dips
  • Ideal for RF/Wireless, 5G, automotive, precision GNSS

 

SiT5347 / SiT5348 (±0.1 0.25 ppm, higher frequency ranges)

  • Offers precision stability over wide temperature ranges
  • Good fit for communication systems, industrial monitoring

 

SiT8944 / SiT8945 (Extended temperature -55 °C to +125 °C oscillators)

  • LVCMOS output; designed for harsh environment reliability
  • Frequency range from ~1 to 110 MHz depending on model
  • Strong choice for aerospace, automotive under‑hood, industrial control

 

 

OCXOs

Oven-controlled solutions for high-holdover, GPS-free timing

 

SiT7101 (10 220 MHz, ±1 ppb ruggedized OCXO)

  • Ultra‑high precision holdover; extremely low drift
  • Rugged design suitable for harsh environments - long-term stability under high shock/vibe

 

SiT5801 / SiT5811 / SiT5802 / SiT5812 (Holdover OCXOs, 8 to 12 hour holdover)

  •  Frequency ranges from ~10‑60 MHz up to ~60‑220 MHz depending on model
  • Designed for telecom base stations, network redundancy, backup timing

 

 

32 kHz Oscillators

Nano-power options for IoT and wearables

 

SiT7101 (10 220 MHz, ±1 ppb ruggedized OCXO)

  • Ultra‑high precision holdover; extremely low drift
  • Rugged design suitable for harsh environments - long-term stability under high shock/vibe

 

SiT5801 / SiT5811 / SiT5802 / SiT5812 (Holdover OCXOs, 8 to 12 hour holdover)

  •  Frequency ranges from ~10‑60 MHz up to ~60‑220 MHz depending on model
  • Designed for telecom base stations, network redundancy, backup timing

 

 

 

Key Benefits

  • Drop-in compatible
  • Exceptional stability (up to ±0.1 ppm)
  • Power-saving features with fast start-up

 

Applications

  • Consumer IoT
  • Wearables
  • Medical devices
  • Networking
  • Satellite communications

 

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