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Mix signals > WHAT IS SIGNAL > Flashcards

WHAT IS SIGNAL Flashcards

1
Q

Is an electromagnetic or electrical current that carries data from one system or networks to another

A

Signal

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2
Q

signal uses given property of the medium to convey the signal’s information, such as electricity moving though a wire.

A

Analog signal

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3
Q

signals are often calculated responses to changes in light, sound, temperature, position, pressure, or other physical phenomena.

A

Analog signals

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4
Q

TWO MAIN TYPES OF SIGNALS

A

ANALOG SIGNALS AND DIGITAL SIGNALS

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5
Q

Is a signal that represents data as a sequence of discrete values

A

DIGITAL SIGNAL

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6
Q

a signal can only take on one value from a finite set of possible values at a given time.

A

Digital signal

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7
Q

Digital signal is use in

A

computing, equipment and data transmission device

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8
Q

Give the electronic components

A

resistors, capacitors, inductors, diodes, transistors, and operational amplifier

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9
Q

circuits are usually more susceptible to “noise” with “noise” being any small, undesired variations in voltage.

A

Analog circuit

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10
Q

can be complex designs with multiple components or they can be simple, such as two resistors that form a voltage divider.

A

Analog Circuit

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11
Q

signals are commonly used in communication systems that convey voice,data,image,signal, or video information using continuous signal.

A

Analog signal

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12
Q

Two basic kinds of analog transmission

A

Amplitude modulation(AM) and frequency modulation(FM)

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13
Q

analog signal may be achieved via many methods :

A

Though a twisted pair or coaxial cable
Through an optical fiber cable
Through radio
Through water

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14
Q

implement components such as logic gates or more complex digital IC

A

Digital electronics

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15
Q

MCU

A

microcontroller

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16
Q

DSP

A

Digital signal processors

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17
Q

are commonly used in communication system where digital transmission can transfer data over point to point or point to multipoint transmission channels such as copper wires optical fibers wireless communication media storage media or computer buses.

A

DIGITAL SIGNALS

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18
Q

ADC

A

analog to digital

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19
Q

DAC

A

Digital to analog

20
Q

DSP

A

Digital signal Processors

21
Q

is used to measure, filter, or compress continuous real-world analog signals.

A

DSP

22
Q

Digital signals: Advantage

A

Digital signals can convey information with less noise distortion and interference.
Digital circuits can be reproduced easily in mass quantities at comparatively low cost.
Digital signals can be easily stored on many magnetic media or optical media using semiconductor chips.
Digital signals can be transmitted over long distances.

23
Q

DIGITAL SIGNAL: Disadvantages

A

A higher bandwidth is required for digital communication when compared to analog transmissions of the same information.

24
Q

Analog signals advantage

A

easier to process
best suited for audio and video transmission
much higher density and can be present more refined information
use less bandwidth than digital signals

25
Q

is a type of analog electronic components that amplifies the difference in voltage between two input terminals.

A

OPERATION AMPLIFIER (OP-AMP)

26
Q

An op-amps primary characteristic is its exceptionally _________. This gain can be on the order of 100,000 or more.

A

High Open-Loop Gain

27
Q

Op amps have two inputs:inverting (-) and non-inverting (+)

A

Differential Inputs

28
Q

An ideal op-amp has infinite input impedance, meaning it draws negligible current from the input source.

A

Input and Output Impedances

29
Q

indicates an op-amps ability to reject common-signals

A

CMRR- Common Mode Rejection Ratio

30
Q

the input signal is applied to the inverting terminal

A

Inverting Amplifier

31
Q

the input signal is applied to the non-inverting terminal

A

Non-inverted amplifier

32
Q

amplifies the voltage difference between two input signals

A

Difference amplifiers

33
Q

Op amps can be configured as integrators and differentiators for mathematical operations

A

Integrator and differentiators

34
Q

op amps have specific___________ and care must be taken to ensure that the input and output voltages remain within the specified range to avoid distortion and potential damage

A

Power supply requirements

35
Q

is the maximum rate of change of the output voltage per unit of time.

A

Slew rate

36
Q

The performance of op amps can be affected by temperature variations.

A

Temperature Stability

37
Q

Op amps have limits on the voltage they can handle

A

Power Supply Limitations

38
Q

An ideal op amp has infinite input impedance, meaning it draws no current from the input source

A

Infinite Input Impedance

39
Q

The output impedance is ideally zero, allowing the op amp to drive any load without loss of signal

A

Zero output impedance

40
Q

the open loop voltage gain is ideally infinite, making the output voltage much higher than input voltage difference

A

Infinite Open Loop Gain

41
Q

The ideal op amp has no voltage difference between its two inputs when in an open loop configuration

A

Zero input offset voltage

42
Q

used for signal amplification

A

amplifier

43
Q

employed in active filter for frequency shaping

A

Filters

44
Q

configured to produce oscillations

A

oacillators

45
Q

used to compare two input voltage

A

comparators

46
Q

Designed for precise measurement smal signals

A

Instrumentation amplifiers

47
Q

used in voltage regulation circuits

A

Voltage regulators

Mix signals (1 decks)

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