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May 2006 [Devices & ICs] Diode Quad Is Foundation For PIN Diode Attenuator Adjustable attenuators are useful in a variety of communications applications, for example, to control signal levels in receivers and transmitters. In particular, high linearity is a key requirement in many modern communications systems. By using a low-cost, SOT-25 surface-mount diode quad from Avago Technologies, it is possible to build a simple voltage-controlled attenuator with outstanding linearity performance over a wide frequency range from 0.3 to 3000 MHz. This type of attenuator... |
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