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Since the concept of "low-altitude economy" was proposed in the "Research on the Development of General Aviation in China" in 2010, it has gone through 14 years of development; by 2024, "low-altitude economy" was written into the Chinese government work report as a new growth engine, indicating that the low-altitude economy is becoming the focus of global attention, which also brings huge opportunities and challenges to the crystal oscillator industry. Low-altitude economy refers to a comprehensive economic form that radiates and drives the integrated development of related fields with various low-altitude flight activities of various manned and unmanned aircraft as the driving force; it covers agriculture, inspection, fire protection, logistics, aviation, tourism, emergency and other aspects. Crystal oscillators have become one of the indispensable core components in this field with their high-precision time and frequency control functions.
1. Application of crystal oscillators in the field of low-altitude economy
The main products in the field of low-altitude economy include drones (consumer and industrial), helicopters, traditional fixed-wing aircraft, and eVTOL (electric vertical take-off and landing aircraft) and other aircraft equipment. The application scenarios included are rich and diverse, including but not limited to:
Application scenario classification
In these rich and diverse application scenarios, aircraft equipment relies on crystal oscillators to provide stable and reliable clock signals to ensure the smooth progress of key tasks such as flight control, navigation and data transmission. High precision, high stability, high reliability and low power consumption are the basic requirements of low-altitude economic equipment for crystal oscillators. There will be more stringent requirements for special application scenarios. For example, in the application scenario of logistics distribution, logistics drones need to operate normally under extreme weather conditions, so temperature compensated oscillators (TCXOs) are usually used to ensure stable and high-precision clock signals in environments with large temperature changes; in the application scenarios of emergency communications or rescue operations, aircraft equipment needs to cope with complex and changing environmental conditions, such as high temperature, low temperature, electromagnetic interference, etc. These environmental conditions put forward higher requirements for the stable operation of aircraft equipment and higher standards for the reliability and anti-interference ability of crystal oscillators.
As one of the core components of aircraft equipment, crystal oscillators not only provide stable clock frequency signals for the central processor of aircraft equipment, but are also widely used in various functional modules of the equipment, including but not limited to:
The low-altitude economy industry has broad development space. As a key technology in the field of low-altitude economy, crystal oscillators will continue to provide a solid foundation for the development of low-altitude economy with their high precision and reliability.
2. YXC provides "low-altitude economy" solutions
Low-altitude economic aircraft equipment, such as drones, electric vertical take-off and landing aircraft (eVTOL), etc., need to maintain high stability and accuracy under changing climate and temperature conditions. The temperature-compensated crystal oscillator can reduce the impact of ambient temperature changes on the oscillation frequency through the built-in temperature compensation circuit, thereby ensuring that the device can provide a stable frequency reference signal at different temperatures.
YXC recommends three temperature-compensated crystal oscillator (TCXO) products to meet the needs of different solutions:
1. General series YSO510TP: In the temperature range of -40~85℃, the stability can reach ±2.5PPM, and it has a variety of sizes.
2. Pre-programmed series YSO511PJ: The frequency can be freely customized in the range of 10~250MHz.
3. High-precision series YSO512ET: With ultra-high precision, the temperature stability can reach up to ±0.1PPM.
· General TCXO series: YSO510TP
YSO510TP is a general series TCXO. The optional frequency range is 10~52MHz, the minimum size can reach 2.0 x 1.6mm, and it has two output modes: CMOS and Clipped sine wave. In the operating temperature range of -30~85℃, the temperature stability is (typical value ±2.5PPM, minimum value ±0.28PPM). The following is the actual measured data of the product:
YSO510TP temperature stability test curve
Test results: In the operating temperature range of -30~85℃, the temperature stability of the test sample meets ≤±2.5PPM
· Pre-programmed TCXO series: YSO511PJ
YSO511PJ product parameters
YSO511PJ is a pre-programmed TCXO. In the operating temperature range of -40~85℃, the temperature stability is ≤±2.5PPM, and the output mode is CMOS. This product can meet any frequency customization in the range of 10~250MHz, suitable for special frequency demand solutions.
· High-precision TCXO series: YSO512ET
YSO512ET product parameters
YSO512ET is a high-precision TCXO. It is suitable for conventional frequencies in the range of 10-50MHz, with package sizes of 5.0*3.2 and 7.0*5.0mm, and has two output modes: CMOS and Clipped sine wave. The product has a temperature stability of up to ±0.1PPM within the operating range of -40~85℃.
