B39851B4320P810

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Surface Acoustic Wave (SAW) filters are electronic components used in a number of applications, from audio and video to wireless communication. The B39851B4320P810 is one such component, offering a highly durable and accurate filter solution with a wide operating temperature range. This article will explore the application field and working principle of the B39851B4320P810 in detail.

Applications of the B39851B4320P810

The B39851B4320P810 is a SAW duplexer and is well suited for medium to high frequency applications such as cellular, PCS, and WiFi systems. It has a narrow bandwidth, low insertion loss, and high selectivity that makes it perfect for these types of broadcast applications. The unit is also rated for a wide temperature range of -20°C to +85°C, making it suitable for use in a wide variety of environments.

The B39851B4320P810 is a great choice for mobile phones that need tuning over different transmission bands. It has low transmission and insertion loss and high selectivity between the transmit and receive bands, allowing for excellent communication reception when tuning in to different frequencies. In addition, it is also compatible with a wide range of frequencies, from 1.8GHz to 2.4GHz.

The B39851B4320P810 is also commonly used in WiFi applications, as it provides efficient bandwidth allocation. It can be used on indoor and outdoor systems, even in rugged conditions. This makes it an ideal choice for any WiFi system, as it ensures reliable connection and speeds. Its switching features also come in handy for use in multiple-user systems.

Working Principle

SAW filters are essentially acoustic wave oscillators. When electrical signals pass through these oscillators, they are “converted” into acoustic waves. The waves then “ring” back and forth, passing through the device until their energy is absorbed.

The B39851B4320P810 works in a similar way, but its design offers a number of unique benefits. It has a narrow bandwidth and high selectivity, allowing it to accurately filter out unwanted signals. Additionally, it is highly temperature-resistant, making it suitable for environments with high temperatures or fluctuating temperatures.

At the heart of this device is a piezoelectric transducer. This transducer is made up of two layers of quartz and a special resonator filter. The quartz layers are polarized in such a way that when electricity is applied to them, acoustic waves are generated. The resonator filters out unwanted signals, leaving only those with the desired frequencies.

Conclusion

The B39851B4320P810 is an excellent SAW duplexer and is well suited for use in a variety of broadcast applications. Its narrow bandwidth and high selectivity make it a great choice for mobile phones and WiFi applications, while its narrow temperature range ensures reliable operation in all kinds of environments. The working principle of the device involves a piezoelectric transducer which generates acoustic waves.

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