Patent ID: 6346860
Filing Date: 2002-02-12
Classification: H03B

Abstract:
Resonator, comprising:first and second balanced integrators (I1, I2) each having a non-inverting (in+) and an inverting (inâˆ’) input terminal, as well as a non-inverting (out+) and an inverting (outâˆ’) output terminal, first and second coupling circuits (Y1, Y2) between the non-inverting output terminal (out+) of the first integrator (I1) and the non-inverting input terminal (in+) of the second integrator (I2) and between the inverting output terminal (outâˆ’) of the first integrator (I1) and the inverting input terminal (inâˆ’) of the second integrator (I2), respectively, and feedback circuits (Y3, Y4) between the non-inverting output terminal (out+) of the second integrator (I2) and the inverting input terminal (inâˆ’) of the first integrator (I1) and between the inverting output terminal (outâˆ’) of the second integrator (I2) and the non-inverting input terminal (in+) of the first integrator (I1), respectively, wherein at least one of the coupling and feedback circuits (Y1, Y2, Y3, Y4) comprises a series connection of a high-to-low impedance converter (T3) and a conductance (G).