Struggling with unreliable OCXOs?

Struggling with unreliable OCXOs?

SiTime’s Elite Platform Super-TCXOs deliver OCXO-level IEEE 1588 performance, but with higher reliability. Plus they are optimized for the most critical oscillator specs for accuracy in IEEE 1588, eCPRI, and time synchronization applications:

±1 ppb/°C  frequency slope (ΔF/ΔT)

1.5 e-11 Allan deviation (ADEV)      

With 105°C operation, vibration resistance and 1.9 billion hour MTBF, these devices reduce field failures and improve system robustnesseven under airflow, thermal shock, vibration, and poor power supply. 

 

Elite Platform Super-TCXOs vs Quartz OCXOs

4x
smaller size
3x
lower power
40x
more reliable

Learn more about our products

Device Datasheet Frequency Stability(PPM) Output Type Supply Volt(V) Temp. Range(°C) Package Size(mm2)
SiT5356 1 to 60 MHz ±0.1 ±0.2 ±0.25 LVCMOS Clipped sinewave 2.5 2.8 3 3.3 -20 to +70 -40 to +85 -40 to +105 5.0 x 3.2 10-pin
SiT5357 60 to 220 MHz ±0.1 ±0.2 ±0.25 LVCMOS 2.5 2.8 3 3.3 -20 to +70 -40 to +85 -40 to +105 5.0 x 3.2 10-pin
SiT5358 1 to 60 MHz ±0.05 LVCMOS Clipped sinewave 2.5 2.8 3.0 3.3 0 to +70 5.0 x 3.2 10-pin
SiT5359 60 to 220 MHz ±0.05 LVCMOS 2.5 2.8 3.0 3.3 0 to +70 5.0 x 3.2 10-pin

 

Our robust and reliable Elite Platform Super-TCXOs are used to replace quartz TCXOs and OCXOs in 5G synchronization applications like RRUs, small cells, front haul switches, smart NIC, and servers.

 

Other key Elite Super-TCXO features:

• 1 MHz to 220 MHz frequency

• ±0.05 to ±0.25 frequency stability over temperature

• On-chip power supply noise filtering eliminates dedicated LDO

• Operates beyond rated temperature up to 125°C, ensuring continuous system operation

• I2C digital frequency tuning eliminates external DAC and sensitivity to board noise

• No activity dips or micro-jumps

 

Image: ceramic 5032 10-pin package, top & bottom

How to Design with SiTime TCXOs and OCXOs

How to Design with SiTime TCXOs and OCXOs

Precision oscillators for communications, enterprise and 5G applications – modes of operation; packages, design & layout; dual-layout recommendations; manufacturing guidelines.

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Elite Platform Super-TCXO improves IEEE 1588 performance

Elite Platform Super-TCXO improves IEEE 1588 performance

Demo of oscillator time accuracy under airflow and heat. Performance of a SiTime Elite Platform™ MEMS-based Super-TCXO is compared to a quartz-based TCXO.

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Whack an OCXO!

Whack an OCXO!

Watch real-time frequency data as a SiTime MEMS TCXO and a quartz OCXO are “whacked” at the same time, with the same amount of shock. The MEMS timing device stays stable as the quartz device frequency spikes.

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