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Oscillators & VCOs

= Tutorials = = Books =   Circuit Diagrams - General Colpitts Oscillators Crystal Oscillators Hartley Oscillators Pierce Oscillators SAW Oscillators Voltage Controlled Oscillators (VCO) Design - General Colpitts Oscillators Crystal Oscillators Hartley Oscillators Pierce Oscillators SAW Oscillators Voltage Controlled Oscillators (VCO) Design Software Theory - General Colpitts Oscillators Crystal Oscillators Hartley Oscillators Pierce Oscillators SAW Oscillators Voltage Controlled Oscillators (VCO) Tutorials

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Topics Covered

• Colpitts Oscillator Circuit Diagrams
• Colpitts Oscillator Theory & Design
• Crystal Oscillator Circuit Diagrams
• Crystal Oscillator Theory & Design
• Hartley Oscillator Circuit Diagrams
• Hartley Oscillator Theory & Design
• Oscillators
• Oscillator Circuits
• Oscillator Design
• Oscillator Design Software
• Oscillator Theory
• Oscillator Tutorial
• Pierce Oscillator Circuit Diagrams
• Pierce Oscillator Theory & Design
• RF Oscillator Book Reviews
• RF Oscillator Books
• SAW Oscillator Circuit Diagrams
• SAW Oscillator Theory & Design
• VCOs
• Voltage Controlled Oscillator (VCO) Circuit Diagrams
• Voltage Controlled Oscillator (VCO) Design

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Oscillator Books & Book Reviews

Design of RF and Microwave Amplifiers and Oscillators - By Pieter L. D. Abrie. (ISBN 089006797)

The Design of Low Noise Oscillators - By Ali Hajimiri, Thomas H. Lee. (ISBN 0792384555)

Electronic Circuit Guidebook: Oscillators Volume 6 - By Joseph J. Carr. (ISBN 0790611856)

Practical Oscillator Handbook - By Irving M. Gottlieb. (ISBN 0750631023)

Tip: Use the asterisk wildcard symbol to search
for variations on words. Also, don't forget acronym
forms of words. For example, searching on these
two keyword phrases
	pll 
	phase locked loop*
would locate these related books
	PLL Design Guide 
	Phase Locked Loop Design
	Phase Locked Loops

Or, use the Advance Search.

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Oscillator Circuit Diagrams

What is an Oscillator? (PDF) - Many types of oscillators implemented with BJTs (transistors), FETs, and even tubes.

Basic RF Oscillator - FM Band

Related Categories: Oscillator Theory & Design

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Colpitts Oscillator Circuit Diagrams

Colpitts Oscillators - A tutorial with circuit diagrams. Includes a Clapp oscillator

Related Categories: Oscillator Circuits - General

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Crystal Oscillator Circuit Diagrams

Op-Amp Oscillators Simplify RF Designs - Up to 140 MHz, 1 W into 50 ohms. You'll probably need to change your screen resolution to see the part values.

Oscillator Lowers Distortion and Phase Noise - Modified Clapp Oscillator.

50 - 150MHz Overtone Oscillator

Crystal Oscillators

Related Categories: Oscillator Circuits - General

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Hartley Oscillator Circuit Diagrams

Hartley Oscillators - A tutorial with circuit diagrams.

Related Categories: Oscillator Circuits - General

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Pierce Oscillator Circuit Diagrams

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Related Categories: Oscillator Circuits - General

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SAW Oscillator Circuit Diagrams

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Related Categories: Oscillator Circuits - General

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Voltage Controlled Oscillator (VCO) Circuit Diagrams

A Balanced Wideband VCO for Set-Top TV Tuner Applications (PDF) - 1.0-2.0 GHz design using a differential BJT pair. See the last page for the schematic. A demo PCB layout is also shown. (Skyworks / Alpha Industries application note APN1005.)

A Colpitts VCO for Wideband (0.95-2.15 GHz) Set-Top TV Tuner Applications (PDF) - 1.0-2.0 GHz design using a Colpitts architecture. See the last page for the schematic. A demo PCB layout is also shown. (Skyworks / Alpha Industries application note APN1006.)

Switchable Dual-Band 170/420 MHz VCO for Handset Cellular Applications (PDF) - 140-150 MHz and 420-440 MHz design using a Colpitts architecture. The schematic is roughly on the middle page of the document. A demo PCB layout is also shown. (Skyworks / Alpha Industries application note APN1007.)

A VCO Design for WLAN Applications in the 2.4-2.5 GHz ISM Band (PDF) - Two Colpitts-type VCOs, one operating at 2.06 - 2.1095 MHz, and the other at 724 - 772 MHz. See the last few pages for the schematics. Demo PCB layouts are also shown. (Skyworks / Alpha Industries application note APN1010.)

A Differential VCO Design for GSM Handset Applications (PDF) - 910-980 MHz design using a differential BJT pair. See the last page for the schematic. A demo PCB layout is also shown. (Skyworks / Alpha Industries application note APN1013.)

A Dual-Band Switchable IF VCO for GSM/PCS Handsets (PDF) - 440-490 MHz and 580-640 MHz design using a Colpitts architecture. A demo PCB layout is also shown. (Skyworks / Alpha Industries application note APN1015.)

A Low Phase Noise VCO Design for PCS Handset Applications (PDF) - 1700-1850 MHz design using a Colpitts architecture. A demo PCB layout is also shown. (Skyworks / Alpha Industries application note APN1016.)

Voltage Controlled Oscillators - Tutorial with Hartley VCO circuit.

Related Categories: Oscillator Circuits - General

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Oscillator Theory & Design

Oscillators - An outstanding online course that starts from scratch and builds up to near-expert level material. Ten stars out of five!

Related Categories: Oscillator Tutorials

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Colpitts Oscillator Theory & Design

Colpitts Oscillators - A tutorial and design example.

Related Categories: Oscillator Theory & Design - General

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Crystal Oscillator Theory & Design

Crystal Oscillator Basics (PDF) - (Microchip application note AN826.)

Oscillators for Microcontrollers (PDF) - Clock oscillator design. (Intel application note AP-155.)

Related Categories: Oscillator Theory & Design - General

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Hartley Oscillator Theory & Design

Hartley Oscillators - A tutorial and design example.

Related Categories: Oscillator Theory & Design - General

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Pierce Oscillator Theory & Design

Pierce Crystal Oscillator Design

Crystal Oscillator Basics (PDF) - (Microchip application note AN826.)

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SAW Oscillator Theory & Design

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Related Categories: Oscillator Theory & Design - General

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Voltage Controlled Oscillator (VCO) Design

Voltage Controlled Oscillators - A tutorial and design example of a Hartley VCO.

VCO Modelling and Simulation in WinSPICE3 - Design Note showing how RF VCO models may be created. An example WinSPICE3 simulation test-bench is provided which plots the VCO's time-domain response, an eye diagram and its frequency domain spectrum when the VCO is modulated. (Silicon Devices application note.)

VCO Designs for Wireless Handset and CATV Set-Top Applications (PDF) - Var