BB914E6327HTSA1

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A Variable Capacitance Diode, also known as a Varicap, Varactor, or simply tuning diode, is a special type of diode used to vary the capacitance of a circuit. Its trademark is its low-forward voltage drop, which makes it suitable for tuning applications such as oscillators and frequency multipliers.

The BB914E6327HTSA1 is an ideal device to provide the capability of wide tuning applications. The product is a silicon tunable diode, with a wide capacitance tuning range from 10-50pF. It has a low leakage current of 5μA (max) at +25°C and operates with a reverse voltage of 30V. This feature also makes it suitable for use in digital and linear tuning applications. The device also features an ultra low reverse recovery time (6ns typ) at +25°C.

The BB914E6327HTSA1 is suitable for use in RF tunable applications such as TV tuners, broadcast band radios, mobile telephones and cellular radio handset applications. The device can also be used as frequency multiplier using a low-drop out LDO regulator in VHF and UHF range amplifiers. It is also suitable for use in FM/AM radio tuning applications in automotive radios, PC multimedia and soundcards, WIFI/GSM radios, and other circuit applications.

The working principle of this device is based on the fact that the capacitance of a diode is directly proportional to the applied reverse bias voltage. When the reverse bias voltage is increased, the depletion region of the diode expands, increasing its capacitance. Conversely, when reverse bias voltage is decreased, the depletion region shrinks and the capacitance is decreased.

This diode can thus be used to vary the capacitance of a circuit in response to changes in the applied reverse bias voltage, allowing for fine-tuning of oscillator frequencies and circuits. Moreover, the ultra low reverse recovery time of the BB914E6327HTSA1 allows for the device to switch quickly and efficiently, making it suitable for use in even the most demanding applications.

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