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What is processing gain?
The process gain (or 'processing gain') is the ratio of the spread (or RF) bandwidth to the unspread (or baseband) bandwidth. It is usually expressed in decibels (dB).For example, if a 1 kHz signal is spread to 100 kHz, the process gain expressed as a numerical ratio would be 100,000/1,000 = 100. Or in decibels, 10log10(100) = 20 dB.
An emitter follower has a voltage gain that is?
.7v less than unity for DC operation but unity for AC.
Common collector amplifier does not have voltage gain but still provide power gain?
It still has a current gain significantly high though the voltage gain is close to unity.
Why consider only 3dB for bandwidth calculation?
3dB of gain rolloff is a linear reduction of gain by a factor of 2. That makes it a good reference point.
How gain varies with bandwidth in an op-amp?
The gain of an op amp varies with frequency. After an op amp reaches the half-power point, the gain falls appreciably. And then once it hits the transition frequency, the op amp no longer provides any gain.
What is relationship between gain and bandwidth of an op amp is?
An op amp can have a very large gain, but a limited bandwidth. If you decrease the gain, you can increase the bandwidth.
What is the relation between bandwith and gain?
The product of bandwidth and gain is constant. If bandwidth increases then gain decreases and vice versa.
What is the significance of gain bandwidth product?
To determine the maximum gain a device can extract at that particular bandwidth
The voltage gain of an op-amp is unity at the what?
unity-gain frequency
What is the relationship between gain and bandwidth?
The basic relationship is that the two together form some kind of constant wherein you cannot have more of one without giving up some of the other. Want more gain? You'll have to work with a narrower bandwidth. Want more bandwidth? You will have to sacrifice some gain to get it.
When the closed loop gain of op amp is unity?
A: As frequency increases the performance of the amplifier decreases to point where because of its internal make it reaches no gain or unity gain. Or it can be unity gain as designed like for a signal buffer
Will gain increased bandwidth also increase to some extent after which stability decreses?
A: The question not very well formulated. But i will try to answer it. Any amplifier will have the maximum gain and the wider bandwidth when it is in a open loop situation. As feedback is added both the gain and the bandwidth will decrease but stability will increase
What is the voltage gain of common collector?
unity
Why you are more concentrated on gain-bandwidh product in amplifiers?
Amplifiers all have a gain bandwidth product that varies greatly from device to device. Obviously the bandwidth becomes important at very hi frequency. Is the gain enough for 100 megahertz for a gain of 10? if not you need another amplifier. also the bandwidth product is an indication of how close can one f/b without causing oscillations..
Feedback oscillators have a closed loop gain of?
unity
What is unity gain antenna?
an antenna with 0 gain. What you hear and transmit is what you get from your 2-way radio.
What is the maxium current gain of common base amplifier?
If Beta is infinite, then the current gain will be unity.
