B39881B9400K610A6

SAW Filters are essential components in electronic communication systems. They are primarily used for bandpass filtering, and the B39881B9400K610A6 is a typical example. In this article, we will discuss the application field and working principle of B39881B9400K610A6.

The B39881B9400K610A6 belongs to a series of SMD High Pass SAW Filters made by Infineon Technologies. It is suitable for many applications including cordless phones, wireless data communication systems, ISM systems and portable radio systems. This device enables high performance filtering of frequency bands in transmission and reception circuits in digital communication systems.

The main features of B39881B9400K610A6 include a low insertion loss, a high rejection level, a wide passband, and a temperature compensated crystal oscillator (TCXO) for stability. It has a wide passband of 0.70 to 3.00 GHz, a low insertion loss of 0.5 to 4.0 dB, and a high rejection level of better than 50 dB. It is constructed using a SAW filter substrate with an integrated circuit (IC) layout, which is then soldered onto a printed circuit board (PCB).

The working principle of B39881B9400K610A6 is relatively simple. It consists of an input RF amplifier, a SAW filter, and an output amplifier. The input RF amplifier amplifies the signal before it reaches the SAW filter. The SAW filter acts as a bandpass filter, allowing only frequencies in a predetermined passband to pass through and rejecting any frequencies outside the passband. Finally, the output amplifier boosts the filtered signal before it is sent to the receiver.

In conclusion, the B39881B9400K610A6 is a SMD High Pass SAW Filter designed for applications such as cordless phones, wireless data communication systems, ISM systems, and portable radio systems. Its main features are a low insertion loss, a high rejection level, and a wide passband. Its working principle is based on an input RF amplifier, a SAW filter, and an output amplifier.