Cover story
Demanding technical requirements For many applications where smart technologies are used, new components are made very precise and stable. This applies to quartz crystals and quartz oscillators, too. The new “standard” for quartz crystals is a component with
low frequency deviation at room temperature, low tolerance across the temperature range and the lowest possible ESR (equivalent series resistance). The former industrial temperature range of -40 to +85°C is becoming established as the normal temperature range in more and more applications. In addition, more and more frequencies are becoming established, such as 38.4MHz, 39MHz, 40MHz and 48MHz, and these are mainly determined by the newly approved frequency ranges and ICs, as well as new communication buses. If we consider the smart meter sector, for example, all smart
meters, regardless of type, require: • Precise time synchronisation for accurate data analysis and reliable data transmission within the network;
• A wide temperature range for use in different environments; • Low power consumption for long battery life. More and more manufacturers of smart devices are relying
on TCXOs (temperature compensated crystal oscillators), in order to utilise the excellent frequency accuracy and low power consumption of these oscillators for demanding designs. TCXOs help to better avoid or control mutual interference caused by the ever-increasing number of devices in larger networks. Low phase noise and low jitter are two further parameters that
are increasingly being taken into consideration when it comes to designs with XOs or TCXOs.
GEYER products and solutions As a long-standing manufacturer of quartz crystals and oscillators, celebrating more than 60 years of consistency, GEYER always keep up with the latest developments. GEYER quartz technology offers the right quartz crystals for
the requirements of IoT-based, intelligent applications: • BUS-independent components. • Quartz crystals with low tolerances of only ±10-15ppm over the entire temperature range.
• An operating and storage temperature suitable for industrial use. • Ageing of ±10ppm over 20 years. • Total tolerance of ±25ppm after 20 years. • Tuning fork crystals for the RTC function. In addition to the tried-and-tested 3.2mm x 2.5mm size,
the new designs mainly feature quartz crystals in a 2.0mm x 1.6mm housing. GEYER manufactures key components for the most common frequencies in the smart technology industry in this size. In the oscillator sector, we have specialised heavily in TCXOs with small dimensions of only 2.5mm x 2.0mm or 2.0mm x 1.6mm. High frequency stability across the temperature range, low power consumption and low jitter or phase noise are the component features that, in addition to the size, meet the requirements of energy-efficient applications. We provide application-specifi c products and always support our customers in bringing their end products to market on time.
New developments Every new development and introduction of supporting components, e.g. controllers, quartz crystals, etc., entails new tests and often also the need for new certifi cations. These are time-consuming and expensive and sometimes slow down the introduction of new generations of devices to the market. In addition, both equipment and component manufacturers
are increasingly automating and optimising their processes and harnessing the possibilities provided by AI. Quality control in production and predictive maintenance are already examples of such processes and require lesser human intervention. What can be seen as an advantage in the medium and long term initially proves to be a further delaying factor, because AI-supported processes must fi rst undergo certifi cation or regulation. In some cases, this is a complex and lengthy process. Even if we can only infl uence some changes in the industry
to a limited extent at the moment, we can still support our customers with component certifi cations using targeted reference designs, our development app for simulating quartz oscillator designs and our R&D department.
In the midst of profound changes The industry is in the midst of a revolution: technological advances, natural disasters and global political changes are sending shock waves through our everyday life. While many branches of industry are experiencing difficult times, others are becoming increasingly important overnight. The fact is that there is no way around the energy transition and that we must use all mechanisms at our disposal to think, produce and live in a more energy-efficient manner. As a component manufacturer, it is therefore very important to be well aware of the degrees of freedom and possible limitations of technologies and applications – these determine the requirements and the selection of the appropriate components. In recent years, at GEYER Electronic GmbH we have seen a
signifi cant boost in the development and manufacture of quartz crystals and quartz oscillators for frequency-controlled electronic components that can reduce the energy consumption of end products, despite increasing technical demands – tolerances, availability, jitter, and more.
GEYER Electronic GmbH
www.geyer-electronic.com /
info@geyer-electronic.de
www.electronicsworld.co.uk October 2025 07
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