SF14-1582M5UUD2

SAW filters are ubiquitous components in many modern communication systems. As such, they are designed to serve as essential components in many telecommunication processes. The most widely used type of SAW filter is the SF14-1582M5UUD2. This filter is part of a product line of Sawtek Xymplex series and is designed for a number of applications.

The SF14-1582M5UUD2 frequency-selective device functions as a low-pass filter (LPF). With an upper stopband attenuation of 42dB and a 6dB stopband attenuation of 2MHz, the SF14-1582M5UUD2 has an active passband of 600kHz–1.2GHz. The range of working frequencies for this filter is 6kHz–3000MHz.

The SF14-1582M5UUD2 can be used in a variety of applications, including the protection of a system against oscillations and/or unwanted signals, filtering of signal harmonics, providing precise signal transmission and/or amplification, preventing or reducing signal interference and improving the signal-to-noise (SNR) ratio of the received signal. Each of these applications requires different design principles and can be utilized in both mobile and fixed environments.

The working principle of the SF14-1582M5UUD2 family of SAW filters is based on the inability of sound waves to penetrate metal sheets. The filter consists of two metal plates with interleaved comb electrodes. The comb electrodes are made from a ferroelectric material. The comb electrodes are connected to the external port of the filter. An incoming signal is parallel-coupled to the comb electrodes and is partially transmitted to another port while being partially reflected back to the input port.

The comb electrodes of the filter form an array of equidistant teeth. The operating frequency will depend on the angle between the electrodes. The reflectance of the filter will depend on the number of teeth in the comb electrodes. Due to the difference in the number of teeth, one set of frequencies will be passed, while others will be reflected.

Moreover, the SF14-1582M5UUD2 utilizes a special process to increase the Q-factor, which is the measure of an electrical circuit\'s ability to store energy. By increasing the Q-factor, the filter can be more easily tuned to the desired operating frequency. Additionally, the increase in the Q-factor results in a better filtering performance that reduces the undesired signal and noise.

The SF14-1582M5UUD2 is a versatile device that can be utilized in numerous different applications. With its well-rounded performances and an array of applications, this filter is a valuable addition to many modern communication systems. It can be used to reduce oscillations, filter signal harmonics, providing precise signal transmission and/or amplification, to improve the SNR of the signal, and to prevent or reduce signal interference.