Patent ID: 6741137
Filing Date: 2004-05-25
Classification: H03B

Abstract:
A circuit, capable of generating a resonator controlled oscillator output signal, comprising:means for generating an oscillating signal having a stable and predetermined oscillation frequency; means for driving said oscillation generating means and for matching the impedance levels between said oscillation generating means and this driving means; means for amplifying and controlling the generated oscillation signal of said oscillation generating means; means for connecting said amplifying and controlling means to said driving means in a closed loop feedback fashion; means, coupled between said driving means and said amplifying means for controlling the amplification factor (gain) of said amplifying means in such a way, that a steady oscillation signal is maintained; means for isolating said amplified oscillation signal of said amplifying means from influences resulting from changing output loads at said isolating means; and means for generating the bias currents, based upon the supply voltage level, for said driving means and for said isolating means.