BD1222J50200AHF RF/IF and RFID

BD1222J50200AHF Balun is designed for an amplifying and matching device for high frequency transmission applications, such as WiFi, ZigBee, and Bluetooth. It can convert an unbalanced differential signal into a balanced signal, and vice versa.

Application field

BD1222J50200AHF Balun is usually deployed to provide impedance matching for signal amplitude and minimize signal distortion. It is widely used in multi-stage amplifiers, cellular base stations, VHF and UHF radios, Wi-Fi access point, Bluetooth, ZigBee, and other wireless communications systems.

The balun is also suitable for a variety of applications where a balanced signal amplification or impedance matching is required. In particular, it can be employed to improve power efficiency in hearing aid systems and radar systems. Other potential applications for this balun include ultra wide band (UWB) network technology, tri-band wireless LAN applications, and medical imaging systems.

Working principle

BD1222J50200AHF Balun works on the principle of electromagnetic coupling. It features an integrated shielded antenna core, which is constructed of two parts: a differential amplifier and a carrier detection circuit. The differential amplifier amplifies the electrical signal coming from the antenna, which is then converted into a balanced differential signal. The carrier detection circuit then processes the signal, as it passes through the balun, and extracts the correct modulation characteristics.

The balun features a highly efficient matching design that improves signal-to-noise ratio. Through the use of the differential amplifier and the carrier detection circuit, the balun is capable of providing the highest levels of signal fidelity and accuracy. The balun is also designed to minimize signal reflections and provide increased power efficiency.