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q frequency stability of quartz crystals the amount of frequency deviation from the ambient temperature frequency over the operating temperature
q give the classification of oscillators depending on the type of the output waveform oscillators are classified as sinusoidal or harmonic
q what is the basic principle of oscillators in an oscillating circuit the amplitude of voltage or current oscillations decays with time owing to
q discuss the essentials of an oscillatorthe essential components of an oscillator arei tank circuit it consists of inductance coill connected in
q show advantages of oscillatorsalthough oscillations can be produced by mechanical devices eg alternators but electronic oscillators have the
q what is an oscillator discuss the advantages of oscillators an oscillator is a system consisting of active and passive circuit elements to produce
working of hartley oscillator when the collector supply voltage vcc is switched on the capictor gets charged the capacitor discharges through the
q show crystal - oscillator circuitsthe simplest crystal-oscillator circuit is shown in fig 6-2a an equivalent circuit is shown in fig 6-2b where c4
q explain crystal oscillatorthe frequency of a crystal-controlled oscillator is held constant to a high degree of accuracy by the use of a quartz
define johnson counter to convert serial data to parallel dataa microprocessor-based or computer system commonly requires incoming data to be in
define johnson counters to make simpler combinational logicthe ring counter technique able to be efficiently utilized to implement synchronous
define johnson counters to produce a time delaythe serial in-serial out shift register can be used as a time delay device the amount of delay able
what are shift register counterstwo of the main common types of shift register counters are the ring counter and the johnson counter and they are
q give the classification of oscillators discuss the frequency stability of oscillatorsoscillators are classified in the following different ways1
q what are the conditions required to be fulfilled to sustain the oscillationsthe conditions required to be fulfilled to sustain the oscillations
q what is barkhausen criterion why is the value of ab kept slightly greater than 1the condition ab 1 is called the barkhausen criterion it implies
what are shift registers - sequential logic circuitthe shift registers are a type of sequential logic circuit that mainly for storage of digital data
explain the advantage of synchronous countersthe most significant advantage of synchronous counters is that there is no cumulative time delay because
q what is the basic principle of oscillation in an rc phase shift oscillator with a neat sketch explain its workingfor producing oscillations there
q why positive feedback is used in oscillatorthe main application of positive feedback is in oscillators an oscillator generates ac output signal
q how oscillations start up in an oscillator the noise voltage produced due to the random motion of electrons in resistors or in active devices
q explain workinf of colpitts oscillatorwhen the collector supply voltage v cc is switched on the capacitors c1 and cz are charged these capacitors
q what is the significance of source gate cutoff voltagethe source gate cutoff voltage is also called pinch off voltage it is obtained when vds
q explain the drain characteristics of jfet with external biasit gives relation between id and vds for different values of vgswhich is called the
q draw the common source drain and transfer characteristics of a jfet how are they usefulthe graph below shows variation of the drain current id