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The UTC L2572 is a wideband PLL FM demodulator designed primarily for use in satellite tuners. It incorporates all essential components, except for the loop feedback elements, to create a complete PLL system capable of operating at frequencies up to 800 MHz. An automatic frequency control (AFC) feature with adjustable window is included, allowing the output signal to correct any frequency drift at the local oscillator in the head end.

The UTC L2572 PLL FM demodulator is a sophisticated device that facilitates the reception and demodulation of frequency-modulated signals, particularly in satellite communication applications. It operates effectively within a frequency range reaching up to 800 MHz, making it suitable for various high-frequency transmission scenarios. The architecture of the UTC L2572 is designed to ensure minimal phase noise and high sensitivity, which are crucial for maintaining signal integrity in satellite communications.

The device's PLL (Phase Locked Loop) configuration utilizes a voltage-controlled oscillator (VCO) to lock onto the incoming signal frequency, allowing for precise demodulation. The external oscillator sustaining network is critical for ensuring stable operation, while the omission of loop feedback components simplifies the design and integration process.

The inclusion of an automatic frequency control (AFC) system enhances the performance of the demodulator by automatically adjusting for frequency drift that may occur due to environmental factors or oscillator instability. The adjustable window feature of the AFC allows for customization based on specific application requirements, providing flexibility in tuning and stability management.

In summary, the UTC L2572 serves as an essential component in satellite tuners, providing reliable and efficient FM demodulation capabilities, with features that enhance performance and adaptability in various operational environments.As a wideband PLL FM Demodulator the UTC L2572 is intended for application in satellite Tuners primarily. The device includes all the necessary elements, with external Oscillator sustaining network and the exception of loop feedback components, to form a PLL system operating at frequencies up to 800MHz completely.

An AFC with window adjust (whose output signal CAN be used to correct for any frequency drift at the head end local oscillator) is provided. By LianShun Electronics Co. , Ltd 🔗 External reference