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Topic:Kt Kingtronics Diode Switching Circuits
Content:
Diodes can switch analog signals. A reverse biased diode appears to be an open circuit. A forward biased diode is a low resistance conductor. The only problem is isolating the AC signal being switched from the DC control signal. The circuit in Figure below is a parallel resonant network: resonant tuning inductor paralleled by one (or more) of the switched resonator capacitors. This parallel LC resonant circuit could be a preselector filter for a radio receiver. It could be the frequency determining network of an oscillator (not shown). The digital control lines may be driven by a microprocessor interface.Kingtronics www.kingtronics.com provide Fast Switching Diode LL4148 Minimelf SOD80 .The features of Fast Switching Diode LL4148 Minimelf SOD80 are below: LL4148 small signal diode Fast switching surface mount diode Low reverse leakage Fast switching speed Maximum power dissipation 500mW High stability and high reliability
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