Temperature-compensated crystal oscillators (TCXOs) play an important role in Global Navigation Satellite Systems (GNSS). These systems provide global positioning, navigation, and time synchronization services to all operational satellite navigation systems, including multiple constellations of satellites orbiting the Earth.
The core principle of a GNSS is based on measuring distances between satellites and receivers. Each satellite sends its position and time signals to a receiver. By obtaining signals from multiple satellites, the receiver calculates the time difference and uses triangulation to determine the exact position (longitude, latitude, and altitude).
This precise time and location data enables ground-based equipment, like smartphones, car navigation systems and GPS devices, to calculate their current positioning.
Global Navigation Satellite Systems Around the World
Although the main purpose of GNSS systems is the same, there is not a universal system used globally. Some examples of systems used in specific regions include:
Oscillators provide the stable frequency and timing references that GNSS receivers need to acquire, track, and decode satellite signals accurately. TCXOs are critical in helping to provide:
GNSS oscillators must maintain reliable frequency performance despite a range of operating challenges. Temperature fluctuations can cause frequency drift, while phase noise and frequency stability can affect signal tracking and positioning accuracy.
Various GNSS applications require different levels of frequency stability, power consumption, size, and environmental performance. TCXOs are widely used in GNSS receivers because they compensate for frequency changes caused by temperature variations while providing a stable, low-power frequency reference. GNSS technology is found in a broad and essential range of applications, including:
Financial systems and telecom networks: These critical industries need a stable, accurate, temperature-compensated frequency reference that keeps wireless and network equipment synchronized and operating reliably.
Navigation: Vehicles, ships, aircraft, and pedestrians use GNSS for real-time navigation and route planning
Scientific Research: GNSS plays a role in seismic monitoring, atmospheric studies, and astronomical observations to provide precise positioning and timing data for monitoring Earth’s movements and studying the atmosphere
Agriculture: GNSS supports precision farming techniques, including automated navigation and resource management
Surveying and Geographic Information System (GIS): GNSS is used for accurate geographic mapping, land surveying, and data collection
At Aker, we are committed to delivering exceptional quality, precision and timing accuracy in our TCXO product range. We take pride in our unparalleled expertise in frequency control to enhance your next application.
| Product | Model | Dimension (mm) | Output | Related Freq |
|---|---|---|---|---|
| TCXO | TX32 | 3.2×2.5 | Clipped Sine Wave | 16.368 MHz 19.2 MHz 26 MHz 38.4 MHz 40 MHz |
| TCXO | TX22 | 2.5×2.0 | Clipped Sine Wave | 16.368 MHz 19.2 MHz 26 MHz 38.4 MHz 40 MHz |
| TCXO | TX21 | 2.0×1.6 | Clipped Sine Wave | 16.368 MHz 19.2 MHz 26 MHz 38.4 MHz 40 MHz |
| TCXO | TXH32 | 3.2×2.5 | CMOS | 16.368 MHz 19.2 MHz 26 MHz 38.4 MHz 40 MHz |
| TCXO | TXH22 | 2.5×2.0 | CMOS | 16.368 MHz 19.2 MHz 26 MHz 38.4 MHz 40 MHz |
| VCTCXO | TV32 | 3.2×2.5 | Clipped Sine Wave | 16.368 MHz 19.2 MHz 26 MHz 38.4 MHz 40 MHz |
| VCTCXO | TV22 | 2.5×2.0 | Clipped Sine Wave | 16.368 MHz 19.2 MHz 26 MHz 38.4 MHz 40 MHz |
| VCTCXO | TV21 | 2.0×1.6 | Clipped Sine Wave | 16.368 MHz 19.2 MHz 26 MHz 38.4 MHz 40 MHz |
