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Sine Wave Generators / Oscillators 

1KHz Sine Wave Generator
2MHz RF Oscillator
4 Transistor Transmitter
68HC11 Synthesizes Accurate Sine Wave:  09/02/96 EDN-Design Ideas
Amplitude Stable Oscillator has Low Distortion, Low Cost:  11/09/00 EDN-Design Ideas /  PDF contains multiple circuits - scroll to find this circuit
Audio Test Oscillator
Basic RF Oscillator #1
BatteryPowered Sine Generator Covers 100 Hz To 10 kHz :  05/27/02 Electronic Design - Ideas for Design / We needed a handheld, battery-powered signal generator with a sine-wave output that was continuously adjustable from 100 Hz to 10 kHz. For such a wide frequency range, we selected a function-generator type of oscillator, which requires a...  
Crystal Filter yields Pure Sine Wave:  06/98 Intersol Application Note # AN9815
Current Feedback Amp yields Simple Oscillator:  06/08/95 EDN-Design Ideas
Digital signal controls sine generator:  05/15/03  EDN-Design Ideas / The circuit of Figure 1 produces an accurate, variable-frequency sine wave for use as a general-purpose reference signal. It includes an eighth-order elliptic, switched-capacitor lowpass filter, IC3, which uses a 100-kHz square-wave clock signal that microcontroller IC2 generates. (Any other convenient square-wave source is also acceptable...
Digital Signal Processor (DSP) for Radio Communications
Digital Signals Produce Pure Sine Waves:  10/09/97 EDN-Design Ideas
Digital Sine-Wave Generator Produces 0 To 360 Phase-Shifts:  12/04/00 Electronic Design - Ideas for Design / Sine-wave generators with 0 to 360 phase-shifts are very important testing blocks in many systems involving DSP operations (i.e., I/Q modulator-demodulator communication, phase-angle measurements and up-down counter conversion in. . .
DTMF Coder Makes Low Cost Sine Wave Generator:  10/13/94 EDN-Design Ideas
Easily Tuned Sine Wave Oscillators:  National Semiconductor Application Notes,28-Jun-1996
Few Extra Components Stabilize Oscillator:  02/15/96 EDN-Design Ideas
Four Transistor Tracking Transmitter
Gates Provide Low Cost Sine Wave Generator:  08/15/97 EDN-Design Ideas
LC Oscillator has 1% THD:  03/31/94 EDN-Design Ideas
Low Distortion Oscillator Starts Fast:  05/26/94 EDN-Design Ideas
Low Distortion, Amplitude Stable Sine Wave Oscillator
Low Distortion, Amplitude Stable Sine Wave Oscillator
Low Frequency Sine Wave Generator:  The two circuits below illustrate generating low frequency sine waves by shifting the phase of the signal through an RC network so that oscillation occurs where the total phase shift is360 degrees.
Microcontroller-based sine-wave generator has crystal accuracy:  12/14/98 Electronic Design - Ideas for Design / One way to generate a sine wave is to pass a square wave through a low-pass filter. The high-order harmonics will be filtered out, leaving only the fundamental. The higher the order of the filter, the purer the sine wave produced. The MAX292. . .
Microphone Circuit Test Oscillator:  440 Hz Tone generator for testing XLR microph1-lines
Negatrons Enrich Filter, Oscillator Designs:  07/21/94 EDN-Design Ideas 
OpAmp Oscillators Simplify RF Designs:  10/10/96 EDN-Design Ideas
Oscillator Lowers Distortion & Phase Noise:  08/18/94 EDN-Design Ideas
Oscillator, 2MHz.:  Fair Warning: this site has pop-up ads
Programmable oscillator uses digital potentiometers:  03/07/2002  EDN - Design Ideas / Digital potentiometers are versatile devices; you can use them in many filtering and waveform-generation applications. This Design Idea describes an oscillator in which setting the resistance of two digital potentiometers independently programs the oscillation amplitude and frequency. Figure 1 shows a typical diode-stabilized Wien-bridge oscillator that generates accurate sine waves fro... .
Self Oscillating Amplifier for Distortion Testing:  allows the home constructor to make quite accurate measurements, without having to spend a lot of money on a low distortion oscillator
Simple Circuit Generates Clean Sine Waves:  06/19/97 EDN-Design Ideas
Simple Compensation Extends Oscillator's Range:  12/05/96 EDN-Design Ideas
Simple Sinewave Generator
Simple sine-wave generator has no low- or high-pass filters:  05/25/98 Electronic Design - Ideas for Design / Generating sine waves with controlled frequencies over a wide range is difficult when using RC or LC sinusoidal oscillators. However, this performance can be simply created using a wideband digital squarewave oscillator, a counter, and a weighted. . .
Sine Wave Generation Techniques:  National Semiconductor Application Notes,04-Nov-1995
Sine Wave Generator
Sine Wave Generator
Sine Wave Generator With Crystal Accuracy
Sine/Cosine Wave oscillator
Square Wave to Sine Circuit
Swept sine oscillator has quadrature output:  08/18/97 Electronic Design - Ideas for Design /  Signals with a know frequency but unknown phase may be detected using an in-phase and a 90 shifted reference signal, as frequently used in lock-in amplifiers, synchronous detectors, and frequency-response analyzers. The 90-shifted signal. . .
The Wien bridge oscillator is reborn:  06/13/2002  EDN - Design Ideas / In 1940, William Hewlett and David Packard launched a product from a garage. The product was a Wien-bridge oscillator. It consisted of a single-pole highpass filter in series with a single-pole lowpass filter. To keep the gain constant, the circuit used an incandescent pilot light to provide AGC (automatic gain control)
Twin T Audio Sine Wave Oscillator
Two Transistor Sine Wave Oscillator
Two Transistor Sine Wave Oscillator
UHF Oscillator
Variable Gain Stage uses Voltage Output DAC:  10/27/94 EDN-Design Ideas
Voltage Controls Sine Wave Frequency:  08/17/95 EDN-Design Ideas
Wein Bridge Oscillator
Wein Bridge Oscillator is Reborn:  06/13/02 EDN-Design Ideas / In1940, William Hewlett and David Packard launched a product from a garage. product was a Wien-bridge oscillator. It consisted of a single-pole highpass filter in series with a single-pole lowpass filter.
Wein Bridge Oscillator keeps THD Below One PPM:  11/10/94 EDN-Design Ideas  / The Wien-bridge sine-wave oscillator uses a light bulb to stabilize its amplitude. The circuit doesn't have a light bulb; it sports several enhancements that lower its distortion and generate a test signal pure enough for testing modern op amps and high-resolution A/D converters.
Wein Bridge Theremin




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