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Varactor tuning
Hi, I'm currently working on this VCXO that achieves frequency shift by applying DC bias to two varactor diodes connected cathode to cathode (bias applied to the junction between them). If I can't get enough shift with the available bias voltage, is there any problem with just putting another pair of the same diodes in parallel with the existing ones? This is a ceramic resonator oscillator, BTW, so will stand a lot more 'pulling' than a xtal would, so don't worry about that aspect of it. p. -- "I expect history will be kind to me, since I intend to write it." - Winston Churchill |