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