Product Details

The SiT5356 is a ±100 ppb precision MEMS Super-TCXO that is fully compliant to Telcordia GR-1244-CORE Stratum  3 oscillator specifications. Engineered for best dynamic  performance, the SiT5356 is 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 SiT5356 delivers the best 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. 

The SiT5356 offers three device configurations that can be  ordered using Ordering Codes for: 

1) TCXO with non-pullable output frequency, 

2) VCTCXO allowing voltage control of output frequency, 

3) DCTCXO enabling digital control of output frequency  using an I2C interface, pullable to 5 ppt (parts per  trillion) resolution. 

The SiT5356 can be factory programmed 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. 

​Refer to Manufacturing Guideline for proper reflow profile  and PCB cleaning recommendations to ensure best  performance.

Products Features

◼ Any frequency from 1 MHz to 60 MHz in 1 Hz steps 

◼ Factory programmable options for short lead time 

◼ Best dynamic stability under airflow, thermal shock 

▪ ±100 ppb stability across temperature 

▪ ±1 ppb/C typical frequency slope (ΔF/ΔT) 

▪ 1.5e-11 ADEV at 10 second averaging time  

◼ -40°C to +105°C operating temperature  

◼ No activity dips or micro jumps

◼ Resistant to shock, vibration and board bending 

◼ On-chip regulators eliminate the need for external LDOs 

◼ 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 

◼ 2.5 V, 2.8 V, 3.0 V and 3.3 V supply voltage 

◼ LVCMOS or clipped sinewave output 

◼ RoHS and REACH compliant 

◼ Pb-free, Halogen-free, Antimony-free

Products Applications

◼ 4G/5G radio, Small cell 

◼ 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

Specifications

Actual product photos

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Official Certificate&Certificate

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