Application of TG-5006CJ 38.4MHz temperature compensated TCXO crystal oscillator in Beidou navigation

     With the increasingly widespread application of navigation, navigation systems face a variety of environments and are often used in harsh and harsh environments, such as tropical high temperature environments or high latitude low temperature environments. When applied to car navigation, they will also face severe bumpy environments. If the crystal oscillator cannot handle these environments, the RF module and main chip will not work, and the positioning function will fail. Satellite navigation has been widely used in transportation, communication, power, finance, meteorology, oceanography, and hydrological monitoring fields, and its working environment varies greatly. In order to ensure that the navigation system can work normally in various environments, a high stability clock source is essential. This article introduces Epson's high stability temperature compensated crystal oscillator model TG-5006CJ-20H. Application of (X1G004131001100) in Beidou Navigation.

    The TG-5006CJ-20H (X1G004131001100) temperature compensated TCXO crystal oscillator launched by Epson Crystal Company has a frequency of 38.4MHz and a working temperature range of -30~+85 ° C. It can work in various harsh environments and is very suitable for navigation equipment applications. The TG-5006CJ-20 has temperature compensation and can maintain high accuracy of ± 0.5 × 10-6 at temperatures of -30 ° C+85 ° C. The frequency range of TG-5006CJ-20H is 13-52MHz, and it can switch between voltage temperature compensation (VC-TCXO) and temperature compensation (TCXO) through pin 1, providing flexibility for user design. The frequency stability of this crystal oscillator is excellent, with a frequency load voltage relationship coefficient of ± 0.2ppm. The frequency aging in the first year does not exceed ± 1ppm, and the frequency tolerance is as low as ± 2ppm (after reflow soldering), which can meet some core network equipment applications with high stability requirements.

    The TG-5006CJ-20H also has good temperature characteristics, reducing the impact of temperature changes on output frequency through temperature compensation. The stability of frequency with temperature changes is ± 2ppm. In addition, the TG-5006CJ-20H has low power consumption, with a working voltage of 1.7V-3.465V and a current consumption of only 2.0mA. The packaging size of EPSON Epson Crystal Company's TG-5006CJ-20H temperature compensated crystal oscillator is 2.0x1.6x0.73mm. The ultra small package can save design space, and coupled with high stability, high precision and other advantages, the TG-5006CJ-20H temperature compensated crystal oscillator can be widely used in RF and wireless communication devices.