oscillator circuits


Posted on Feb 5, 2014

This generally results in a square wave if the frequency of oscillation is low enough relative to the amplifier`s bandwidth Crystal Controlled Oscillator schematic of a low frequency sine wave oscillator featuring low distortion, wideband operation and crystal control. The circuit, originally dev


oscillator circuits
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eloped for laboratory use, employs low cost AF bipolar transistors for the oscillator and amplifier sections and a JFET for loop-gain control. Operation of the oscillator in the 10 kHz to 500 kHz frequency range has been found to be excellent, while measured distortion is kept under 0. 1 percent DTMF Generation with a 3. 58 MHz Crystal DTMF generation consists of selecting and combining two audio tone frequencies associated with the rows (low band frequency) and columns (high band frequency) of a pushbutton touch tone telephone keypad, PDF Function Generator A function generator using the ICL8038 integrated circuit. Is has four ranges and capable of sine, square and triangle outputs, ICL8038 The ICL8038 waveform generator is a monolithic integrated circuit capable of producing high accuracy sine, square, triangular, sawtooth and pulse waveforms with a minimum of external components. Signal Injector and Tracer A simple test circuit to fault find audio and radio equipment. Can be used to inject a square wave signal, rich in harmonics, or used with headphones as an audio tracer, schematics Simple Sine, Triangle and Square Wave Generator Intersil`s ICL8038, VCO (voltage controlled oscillator) chip, Frequency range <1Hz to >100kHz, High output power (>1A) for the sine output (e. g. to drive inductivities) with some protection against destruction, CMOS-compatible complementary square wave output for digital circuit clocking (can...




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