13
Oscillators
13.1 Introduction
The requirement of signal frequency for experimental purposes sometimes ranges from Extremely Low Frequency (ELF) in the range of 1 Hz to 300 Hz, to Extra High Frequency (EHF) ranging upto 300 GHz. We know that ELF cannot be generated by LC oscillators as the requirement of component values makes it so bulky that practically it becomes impossible to manufacture it without undesirable effects of resonance. Hence, for generation of ELF and VLF frequencies RC oscillators are used. The classifications of oscillators based on frequency ranges are
• Audio frequency oscillators |
upto 20 kHz |
• Radio frequency oscillators |
20 kHz to 30 MHz |
• Very high frequency oscillators |
30 MHz to 300 MHz |
• Ultra high frequency ... |
Get Electronic Devices and Integrated Circuits now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
