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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.
If data signal is narrowband compared to the spreading signal, the resulting product of both the signals will have what bandwidth of spreading signal?
.
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.
Does a low bandwidth signal have more power than a high bandwidth signal?
A low bandwidth signal does not have more power.
What is the significance of gain bandwidth product?
To determine the maximum gain a device can extract at that particular 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.
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..
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.
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.
Why gain bandwidth product is constant?
The gain and bandwidth product is constant only for first order systems. However many complex systems which can be converted and studied as first order, it holds good. This is simple mathematics as in the first order system the frequency appears in the denominator. So if it increases by x times then gain (the modulus of the transfer function) is reduced by x times (approximately).
Need of multistage amplifier?
The Gain provided by the multistage amplifier is greater than the gain of single stage amplifier. The gain of the two stage amplifier is the product of the gain of the individual stages.
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 are the effects of negative feedback?
1. less nonlinear distortion, 2. reduction in gain, which is actually in our control 3. since product of bandwidth and gain is constant, reducing gain gives higher bandwidth. 4. more gain stability, as for high gain values, stability is dependent on feedback factor, whic is in our control. 5. can be used to make voltage controlled voltage source, C cntrolled V sources, V controlled C sources and C controlled C sources
What is netflow?
Netflow is a Cisco product to analyze network bandwidth usage.
What product defines the number of bits that can fill the link?
bandwidth-delay
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.
