SMV2204-040LF Discrete Semiconductor Products

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Diodes - Variable Capacitance (Varicaps, Varactors) are electronic components that are capable of changing the capacitance of a circuit when voltage is applied. The SMV2204-040LF is a varicap diode that is useful for controlling the frequency of an oscillator. It can also be used for tuning a radio, demodulating signals, and voltage-controlled oscillators.

The SMV2204-040LF has a reverse break down voltage of 40 V and a reverse junction capacitance of around 4 pF. It has a very low non-linearity, which makes it suitable for creating frequency modulation (FM) signals. It can also be applied to small signal feedback paths to affect the frequency of amplifiers.

The SMV2204-040LF consists of two clean P-type and N-type semiconductor layers. The contacts are formed on the metallized surface of the N-type layer to ensure low junction capacitance. Additionally, the varicap diode has a wide range of variable capacitance, from 3 pF to 4.5 pF when the reverse voltage is between 1 V and 10 V.

In an oscillator circuit, the SMV2204-040LF is connected between the supply voltage and ground. When the reverse voltage is applied to the varicap diode, its capacitance increases, which affects the frequency of the oscillator. This means that by varying the reverse voltage applied to the diode, the frequency of the oscillator can be adjusted.

The SMV2204-040LF can also be used as a frequency discriminator. When an AC signal is applied to the diode, the voltage varies with the frequency of the signal, which causes the capacitance of the diode to vary accordingly. This can be used to create an input signal for a frequency discriminator circuit.

The SMV2204-040LF is also useful for creating voltage-controlled oscillators (VCOs). In a VCO, the output frequency is varied by a voltage applied to the diode. This can be used to control the frequency of the VCO, which can be used in TV receivers, phase-locked loops, and other applications.

The SMV2204-040LF is a versatile and useful varicap diode. It can be used for controlling the frequency of oscillators, tuning radios, demodulating signals, and creating VCOs. Its wide range of capacitance and low non-linearity makes it particularly well-suited for frequency modulation and other applications where precision and control are important.

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