Electronic system for generating any of a range of frequencies
A frequency synthesizer is an electronic circuit that generates a range of frequencies from a single reference frequency. Frequency synthesizers are used in many modern devices such as radio receivers, televisions, mobile telephones, radiotelephones, walkie-talkies, CB radios, cable television converter boxes, satellite receivers, and GPS systems. A frequency synthesizer may use the techniques of frequency multiplication, frequency division, direct digital synthesis, frequency mixing, and phase-locked loops to generate its frequencies. The stability and accuracy of the frequency synthesizer's output are related to the stability and accuracy of its reference frequency input. Consequently, synthesizers use stable and accurate reference frequencies, such as those provided by a crystal oscillator.
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A frequencysynthesizer is an electronic circuit that generates a range of frequencies from a single reference frequency. Frequencysynthesizers are used...
end; and low-frequency oscillators, which modulate parameters such as pitch, volume, or filter characteristics affecting timbre. Synthesizers are typically...
harmonic frequency and removes the unwanted fundamental and other harmonics from the output. Frequency multipliers are often used in frequencysynthesizers and...
instantaneous frequency) was the basis of several musical instruments beginning as early as 1974. Yamaha built the first prototype digital synthesizer in 1974...
controls the amplitude of a VCA or the cutoff frequency of a VCF, but the patchable structure of the synthesizer makes it possible to use the envelope generator...
loop frequency synthesizers make use of frequency dividers to generate a frequency that is a multiple of a reference frequency. Frequency dividers can be...
receivers began to be designed using frequencysynthesizer circuits, which synthesized the receiver's input frequency from a crystal oscillator using the...
synthesis) or used to control other modules (low-frequency oscillation). Robert Moog developed the synthesizer in response to demand for more practical and...
(DDS) is a method employed by frequencysynthesizers used for creating arbitrary waveforms from a single, fixed-frequency reference clock. DDS is used...
An analog synthesizer (British English: analogue synthesiser) is a synthesizer that uses analog circuits and analog signals to generate sound electronically...
it with the phase of an input or reference signal. An indirect frequencysynthesizer uses a PLL. In an all-digital PLL, a voltage-controlled oscillator...
that implements that behavior Frequencysynthesizer, an electronic system for generating any of a range of frequencies Sound synthesis, various methods...
best-selling synthesizers in history, selling more than 200,000 units. In the early 1980s, the synthesizer market was dominated by analog synthesizers. FM synthesis...
and the frequency 9020 Hz, 50 Hz lower, to indicate a '0'. The two frequencies are generated by a continuously-running frequencysynthesizer. The transmitter...
incoming clock (which can come from outside the FPGA or from a Digital FrequencySynthesizer [DFS][citation needed]). Making sure the clock has a steady duty...
In a channelized receiver system, the precision of tuning of the frequencysynthesizer must be compatible with the channel spacing of the desired signals...
in the field of audio synthesizers, to distinguish it from an audio frequency oscillator. An audio oscillator produces frequencies in the audio range, 20 Hz...
several other pages Wolaver 1991, p. 211 Crawford, James A. (1994), FrequencySynthesizer Design Handbook, Artech House, ISBN 0-89006-440-7 Wolaver, Dan H...
frequencysynthesizer, the switching time or more colloquially the switching speed is the amount of time from when the command for the next frequency...
range. The output frequency of the VCXO (typically 5 MHz) is multiplied by a frequencysynthesizer to obtain microwaves at the frequency of the caesium atomic...
days, there were three main types of guitar-synthesizers:[citation needed] Multi-effects type Frequency-to-voltage converter type (using guitar with...
Fernmeldesatellit Kopernikus), a series of satellites Digital FrequencySynthesizer, generation of different frequency from another in phase Disease-free survival, a...
distinguishing sounds of the era. To keep costs down, string synthesizers typically used a frequency divider architecture similar to that of electronic organs...