Voltage controlled oscillator (VCO) with output buffer

Details Voltage controlled oscillator (VCO) with output buffer Voltage controlled oscillator (VCO) with output buffer

2006-05-30

2006-05-30

Mis, David (Department: 2817)

Oscillators

Solid state active element oscillator

Transistors

C331S075000, C331S17700V

Reexamination Certificate

active

07053722

ABSTRACT:
An oscillator system is disclosed and includes an oscillator circuit having a differential output producing a differential output signal thereat having a frequency that is a function of an input voltage. The oscillator system further includes an output buffer coupled to the differential output of the oscillator circuit. The output buffer includes an inductive voltage divider circuit configured to weaken a loading at the oscillator differential output and it increases the output power.

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patent: 2004/0108908 (2004-06-01), Lazarescu et al.
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“Single-Chip 20-GHz VCO and Frequency Divider in SiGe Technology”, K. Ettinger, A. Stelzer, C. G. Diskus, W. Thomann, J. Fenk and R. Weigel, 2002 IEEE MTT-S Digest, pp. 835-838.
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