The Ultimate Guide to Choosing time and frequency manufacturer

Author: Faunus

May. 05, 2025

Frequency Control Products: A Guide From Golledge

Frequency control products play a crucial role in maintaining the stability of clocking and timing in digital devices. In today's world of rapidly evolving technology, digital circuits require precise clocks to ensure that processes happen at specific intervals, and as technology continues to play an increasingly critical role in our world, the importance of frequency control products has never been clearer.  

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Frequency control products provide timing and synchronization solutions for a wide range of applications, including wireless infrastructure, wireline core networking, synchronous Ethernet, optical networking, avionics, military, oil & gas exploration, and test & measurement, to name but a few.  

Here at Golledge Electronics, we’re proud to be the UK's leading supplier of frequency control products. For over 50 years, we have been providing a wide range of products to our valued customers across different sectors. Some of our key products include: 

  • Quartz crystals
  • Oscillators
  • Crystal filters
  • Saw filters.

We firmly believe that the success of our products has been achieved through a relentless focus on meeting and exceeding our customers' requirements. We pride ourselves on providing high-quality frequency control products that meet the specific needs of our customers, and our team of experts has a deep understanding of the industry, working tirelessly to provide innovative solutions that keep both Golledge and our customers ahead of the curve. 

Throughout the rest of this comprehensive guide, we'll dive deeper into the use of frequency control products, take a closer look at the different types of frequency control products, and further explain their functions and applications. 

What are frequency control products?

Frequency control products are electronic components that provide precise timing and synchronization solutions for a wide range of applications. They are used in digital circuits to ensure that processes happen at specific intervals, and they play a critical role in maintaining the stability of clocking and timing in electronic devices. 

There are several types of frequency control products available, including oscillators, quartz crystals, TCXOs, VCXOs, OCXOs, crystal filters, SAW filters, and RTC modules. Each type of product has its specific functions and applications, but they all work together to provide accurate timing and synchronization solutions for various electronic devices. 

Oscillators generate a stable and precise signal of a specific frequency, while quartz crystals provide a precise resonance  that can be are used in an oscillator to control its frequency.  

TCXOs are a type of oscillator that provides greater accuracy and stability than standard oscillators. whilst OCXOs, on the other hand, provide the highest level of stability and are often used in applications where precise timing is critical. 

Crystal filters and SAW filters are used to filter out unwanted signals and noise from electronic circuits, while RTC modules provide real-time clock functionality for devices that require accurate timekeeping. 

Overall, frequency control products play a crucial role in maintaining the stability and accuracy of clocking and timing in a wide range of electronic devices, making them an essential component in various industries, including telecommunications, aerospace, defense, and many others. In the next section, we'll take a closer look at the different types of frequency control products available and delve a bit further into their specific functions and applications as well as their individual advantages and disadvantages.  

Types of Frequency Control Products

There are several types of frequency control products available, each with its specific functions and applications. Below we’ve listed all of the most common frequency control products, taking a closer look at their functions, and applications, as well as the advantages and disadvantages of each type of product. 

Oscillators

Oscillators are electronic components that generate a stable and precise signal of a specific frequency. They are used in a wide range of applications, including wireless devices, infrastructure, wireline core networking, avionics, military and oil & gas exploration. 

The advantages of oscillators are that they are simple and easy to use, and they offer a low-cost solution for frequency control. The disadvantages of oscillators however are that they may not provide the highest level of stability and accuracy. Common products that oscillators are used in include; computers, wireless receivers and transmitters, and audio-frequency equipment such as music synthesizers, radios, TVs, cell phones. 

Quartz Crystals

Quartz crystals provide precise timing references that are essential in many electronic devices. They are used in applications that require accurate and stable timing, such as communications, navigation, and military systems. 

The advantages of quartz crystals are that they offer high accuracy and stability. They are also priced relatively low. The disadvantages of quartz crystals, however, is that they may require additional circuitry to generate a useful signal, and they may need temperature compensation or stabilization for more precise applications. 

TCXOs

Temperature-compensated crystal oscillators (TCXOs) are types of oscillators that provide greater accuracy and stability than standard oscillators. They are used in applications that require a high level of stability, such as communications, navigation, and military systems. 

The advantages of TCXOs are that they offer high accuracy and stability while using much less power than an OCXO. The disadvantages of TCXOs are that they are more expensive than standard oscillators and may require more complex circuitry. 

VCXOs

Voltage-controlled crystal oscillators (VCXOs) are types of oscillators that can adjust their frequency in response to changes in an applied tune voltage. They are used in applications that require frequency modulation or tuning, such as radio transmitters and receivers. 

The advantages of VCXOs are that they offer frequency modulation and tuning capabilities, and they are relatively low cost. The disadvantages of VCXOs are that they may not provide the highest level of stability and accuracy. 

OCXOs

Oven-controlled crystal oscillators (OCXOs) provide a higher level of stability and accuracy and are often used in applications where precise timing is critical, such as satellite communications, aerospace, and military systems. 

The advantages of OCXOs are that they offer the highest level of stability and accuracy, and they can compensate for changes in temperature that can affect oscillator performance. The disadvantages of OCXOs are that they are the most expensive type of oscillator, generate heat, and use a lot more power than TCXOs. 

Crystal Filters

Crystal filters are used to filter out unwanted signals and noise from electronic circuits. They are used in applications that require high levels of signal purity, such as wireless communications and audio equipment. 

For more information, please visit California Triangle.

The advantages of crystal filters are that they offer high levels of signal purity, and they are relatively low cost. The disadvantages of crystal filters are that they may require more complex circuitry to implement, and only cater for narrow band systems, not the wide bandwidth communication systems of today. 

SAW Filters

Surface acoustic wave (SAW) filters are used to filter out unwanted signals and noise from electronic circuits. They are used in applications that require high levels of signal purity, such as wireless communications and audio equipment. 

The advantages of SAW filters are that they offer high levels of signal purity and are relatively low cost, they also offer wider bandwidths, and higher center frequencies, than crystal filters. The disadvantages of SAW filters are that they may require more complex circuitry to implement. 

RTC Modules

Real-time clock (RTC) modulesprovide real-time clock functionality for devices that require accurate timekeeping. Some of the main advantages of are accurate timekeeping, ultra-low power consumption, simple interface and alarm functions.

Why are frequency control products important in electronic systems?

Frequency control products are essential in electronic systems because they provide precise timing and synchronization solutions that ensure the smooth operation of digital circuits. Without frequency control products, electronic devices would not function correctly or efficiently, and digital clocks would fail to function properly.  

Digital circuits today require clocks to ensure that processes happen at very specific intervals. These clocks must be precise and stable to ensure that electronic devices operate correctly. Frequency control products provide this precise and stable timing by generating and filtering signals that ensure that electronic devices operate within specific tolerances. 

In many industries, such as telecommunications, aerospace, and defense, precise timing and synchronization are critical. For example, in wireless infrastructure, frequency control products are used to ensure that wireless signals are transmitted and received accurately, and in the correct sequence. In avionics, frequency control products are used to ensure that aircraft instruments are synchronized and accurate, which is essential for safety. 

Overall, frequency control products are an essential component in various industries, and their importance in maintaining the stability and accuracy of clocking and timing in electronic devices cannot be overstated. 

Choosing the Right Frequency Control Product

When choosing a frequency control product, there are several factors that must be considered so that you can make sure that your chosen product is best suited for your specific application.  

Here are some of the top six factors to consider when deciding on which frequency control product to purchase for your specific needs: 

1. Frequency Stability

Frequency stability refers to how stable the output frequency of the product is over time. It is essential to choose a product with high frequency stability if the application requires accurate and stable timing. 

2. Operating Temperature Range

The operating temperature range of a frequency control product is important to consider because temperature changes can affect the final stability and accuracy. It is essential to choose a product that can operate within the temperature range required by the application. 

3. Aging Characteristics

Aging characteristics refer to how the product's frequency changes over time. It is essential to choose a product with aging characteristics suitable for the lifetime of the product they are in tomaintainaccuracy and stability over time. 

4. Phase Noise

Phase noise refers to the unwanted noise that can be present in the product's output signal. It is important to choose a product with low phase noise if your specific application requires a high signal-to-noise ratio or high dynamic range. 

5. Shock and Vibration Resistance

If the application requires the product to be exposed to shock or vibration, you will want to choose a product that is both shock and vibration-resistant. In doing this you will help to ensure that the product remains stable and accurate whilst in operation, which is of course a top concern for manufacturers.  

6. Size and Package Options

Size and package options are another important aspect to consider if the product needs to fit within a specific space or if the application requires a specific package type. 

To determine which product is best suited for a specific application, it is essential to consider the application's requirements and compare them to the product's specifications. The product's datasheet should provide all the necessary information to make an informed decision. 

In summary, choosing the right frequency control product requires careful consideration of several factors to make sure your application works to the standard that you require and expect. The last thing any business or manufacturer wants is to purchase a frequency control product that is essentially a “square peg in a round hole”.  

By understanding all of the above factors and comparing them to the application's requirements, you can confidently choose a product that provides accurate and stable timing and synchronization solutions that match your needs.  

If you’d like any further advice on which product to purchase for your application, do not hesitate to give us a call on +44 256 100.  

Time & Frequency Standards, GPS-Synchronized

Oscillators & Frequency Steps

We have been selecting and tuning precision frequency control componentry for 35 years. During that time we have learned which components to use, and if we don't make them ourselves, we know where to get the best. One component at the heart of every good frequency standard is an oscillator, either quartz or rubidium. We've learned that most quartz oscillators suffer from frequency steps that cannot be mitigated by any software algorithm. The oscillators that we manufacture for use in our time & frequency standards are selected to be the absolute best in their class - no frequency steps - guaranteed.

We've Made Precision Frequency Standards for Decades

Our engineering team includes the designer of the first microprocessor-controlled disciplined frequency standard which was introduced in the s using Loran-C signals. Since then we have created leading GPS-based standards and pioneered the use of CDMA for these applications. We have extensive experience with every broadcast RF signal source that has been used to discipline oscillators and provide precise time & frequency outputs. The products we are building today are the culmination of this legacy of experience in dealing with real world signal reception anomalies and oscillator behaviors.

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Exclusive Guarantee

We guarantee that our Meridian and Tycho quartz-based products will be free of any frequency steps. Oscillators are carefully chosen and selected to be free from this characteristic. If your unit proves to be defective (exhibits frequency steps despite our precautions) we will replace the oscillator free of charge.

For more time and frequency manufacturerinformation, please contact us. We will provide professional answers.

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