Round will facilitate the delivery of fully tested TCXOs to eoSemi’s lead customers and accelerate the shift to next gen digitally compensated, higher performing TCXOs

Wednesday 21 December 2022: eoSemi, the world leader in the development of very high performing digitally compensated TCXOs – today announced it has completed a £2M Series A round of investment. The raise will enable eoSemi to complete its proprietary, low cost, auto-test solutions required to calibrate TCXOs in volume and begin the commercialisation of its revolutionary technology. The round was led by Belgian Venture Capital Investor Capital-E with substantial contributions from other existing investors.

Historically TCXO and OCXO products have employed curve-fitting analog circuitry based on extremely mature 0.35um BiCMOS technologies which inherently deliver larger, power hungry and expensive solutions due to the complex nature of the manufacturing processing required. In contrast eoSemi uses a modern 65nm pure CMOS process to implement a digital solution which is much more accurate, smaller and with much lower cost. The performance is so good, the company expects to take a share of the OCXO market with a very low cost TCXO.

 “A combination of the silicon technology, careful design, digital compensation schemes and calibration ensures world beating performance” said Steve Cliffe, CEO of eoSemi. “Specifically; industry leading phase noise of 162dBc/Hz, power consumption of 3.6mW, ultra-tight stability of better than 50ppb: with this performance available right across an extended temperature range of -40oC to +105oC, and in a 2520 package or smaller. All of these parameters have been achieved before, but never all at the same time and never at this cost” he added.

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About eoSemi

eoSemi is the world leading developer of precision digitally controlled TCXO silicon solutions delivering unparalleled technical performance.