Exam 14: Frequency Effects

To prevent oscillations,most op amp circuits include an RC lag circuit that rolls off the voltage gain.

The charging and discharging of a capacitor produce a lag in the output voltage of an RC bypass circuit.

Each time the ordinary power gain decreases by a factor of 2,the decibel power gain decreases by 3 dB.

At high frequencies,the voltage gain of an ac amplifier decreases because of

Decibel power gain is often used on data sheets to specify the power gain of devices.

The frequency response of an amplifier is the graph of its gain versus the frequency.

The Miller effect has useful applications because

Sources of stray capacitance or inductance of conventional feed-through components does not include

When an op amp includes one dominant bypass capacitor that rolls off the voltage gain at a rate of 20 dB per decade,it means the op amp is

What type amplifier uses direct coupling and amplifies signals down to 0 Hz?

In music,the doubling of the frequency is referred to as ________.

Impedance matching in communication systems is used because it produces maximum power transfer.

Each time the voltage gain decreases by a factor of 2,the decibel voltage gain

In the label dBm,the m at the end of dBm designates the millivolt reference.

Instead of the term cutoff frequency,many technicians use the term

A graph of an amplifier's gain versus its frequency is referred to as the amplifier's

The total voltage gain of a two-stage cascaded amplifier is the sum of the individual voltage gains.

An entry on a data sheet that lists the frequency limitation of an op amp is the

The total decibel voltage gain of two cascaded stages equals the

In music,the word octave refers to eight times the frequency.