By Timebeat

SiT5811 OCXO Expansion Module (10MHz - 1ppb - Digitally controlled via I2C)

Regular price £375.95
Regular price £495.95 Sale price £375.95
-£120.00
Availability: Low stock: 1 left
SKU: EXP-OCX-SIT-5811
Regular price £375.95
Regular price £495.95 Sale price £375.95

The SiT5811 is the industry’s smallest OCXO (9 mm x 7 mm) to offer ±1 ppb over-temp stability, ±0.01 ppb/°C typical frequency slope (dF/dT), and up to 8 hours of time holdover. It is the first OCXO to offer ±1 ppb stability over a temperature range as wide as - 40°C to 95°C.

The SiTime SiT5811 is the industry’s smallest Stratum 3E OCXO with ±1 ppb frequency stability. You simply will not find better performance in a smaller footprint anywhere - it is the current benchmark in high-end clock miniaturisation.

This module can be disciplined using I2C and is fully compatible with the free Timebeat clock synchronisation software.

This expansion board fits directly onto the TimeCard Mini GNSS module so that it can be used in combination with a Raspberry Pi CM4 IO board or our very own TimeCard Mini PCIe Card adapter.

Combining the multi-constellation GPS / GNSS module and the SiTime 5811 expansion module you get all of the performance from an enterprise-grade grandmaster clock in the palm of your hand and at the lowest prices around. Not only do you save space, and power but you also save money.

Simple installation, it just clicks into place and you are done - You will not get a better solution for the same price anywhere else!

Features
◼ ±1 ppb frequency stability over temperature
◼ ±0.01 ppb/°C frequency slope typical dF/dT
◼ Up to 95°C operating temperature range
◼ Up to 8 hours of holdover over 1.5 μs
◼ 420 mW power consumption – steady state
◼ 5E-12 ADEV at 10 second averaging time
◼ 2.5, 2.8, and 3.3 V supply voltages
◼ Digital frequency pulling (DCOCXO) via I2C/SPI
◼Up to ±400 ppm pull range
◼Frequency pull resolution down to 0.05 ppt (5e-14)
◼ Exceptional dynamic stability under airflow and rapid
temperature changes
◼ Integrated regulators for on-chip power-supply noise
filtering and excellent PSNR
◼ Resistant to shock and vibration

Time honoured solutions

built around you

  • Tech to suit your project

  • Every unit tested

  • Top performance

  • Free software available