10mhz cmos ota-c voltage-controlled quadrature oscillator
A quadrature-type voltage-controlled oscillator with operational transconductance amplifiers and capacitors (OTA-C) is presented. A monolithic integrated CMOS test circuit is introduced to verify theoretical results. The attainable frequency range of oscillation of the chip test circuit is 3-10.34 M...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 1989 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/94399 |
| Acceso en línea: | https://hdl.handle.net/11441/94399 https://doi.org/10.1049/el:19890517 |
| Access Level: | acceso abierto |
| Palabra clave: | Circuit theory and design Integrated circuits Nonlinear networks Oscillators |
| Sumario: | A quadrature-type voltage-controlled oscillator with operational transconductance amplifiers and capacitors (OTA-C) is presented. A monolithic integrated CMOS test circuit is introduced to verify theoretical results. The attainable frequency range of oscillation of the chip test circuit is 3-10.34 MHz. The total harmonic distortion (THD) is 0.201.87% for corresponding peak-to-peak amplitude voltages between 100 mV and IV. This amplitude can be controlled either by using a diode connection of two MOS transistors or a proposed nonlinear resistor. |
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