High-frequency voltage-controlled-oscillator for use with inverted- mesa quartz resonators

Conference · Thu Aug 01 04:00:00 EDT 1996

OSTI ID:288866

Wessendorf, K O

An oscillator circuit has been developed that uses inverted mesa resonators, in a high precision VCO application, at frequencies historically dominated by SAW designs. This design incorporates a frequency tripler that provides a 600 MHz output capability using a 200 MHz 3{sup rd} overtone resonator. This design has advantages over equivalent SAW alternatives: lower power consumption, superior aging characteristics, linear frequency pulling and low frequency versus temperature sensitivity. The VCO presented demonstrates {gt} +/- 60 ppm pullability (0 to 7V control), tuning linearity better than +/- 5% with phase noise at 1 kHz {lt} -110 DBc/Hz. this oscillator- tripler exploits the nonlinear characteristics of an emitter-coupled pair differential amplifier to obtain a high performance oscillator design.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 288866
• Report Number(s): SAND--96-0019C; CONF-960698--1; ON: DE96013053
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CIRCUIT THEORY
DESIGN
ELECTRONIC CIRCUITS
MHZ RANGE 100-1000
OSCILLATORS
POWER AMPLIFIERS
RESONATORS
TRANSFER FUNCTIONS