EE analog vs digital
A simple handheld instrument for detecting HIGH, LOW, and Undefined digital logic levels is called a __________ (logic analyzer, logic probe).
logic probe
An input voltage of +0.5V to a TTL IC (+5V supply) would be considered a __________ (H, L, undefined) logic level.
low
An input voltage of +1V to a CMOS IC (+10V supply) would be considered a __________ (H, L, undefined) logic level.
low
In TTL (using a 5V power supply), a voltage of 0.2V would light the __________ (HIGH, LOW, Undefined) indicator on a logic probe.
low
Probe lowest light
low
An input voltage of +1.5V to a TTL IC (+5V supply) would be considered a __________ (H, L, undefined) logic level.
undefined
Probe top light
undefined
TTL low
0.8 and below
TTL undefined
0.8-2
TTL high
2 and above
CMOS low
3 and below
CMOS undefined
3-7
CMOS high
7 and above
Most "real world" measurements (like temperature, speed, pressure, etc.) are __________ (analog, digital) in nature.
analog
Traditional circuitry (as in TVs) was probably __________ (analog, digital) in nature.
analog
A sine wave (sinusoidal waveform) is an example of a(n) __________ signal.
analog
A(n) __________ signal is one whose output varies continuously in step with the input.
analog
A(n) __________ multivibrator is an electronic device that generates a continuous string of digital pulses. It may also be called a clock or a free-running MV.
astable
Free-running aka
astable
Surface mount characteristics
automatic equipment cost less higher connection density smaller and less expensive difficult to repair
A(n) __________ multivibrator is an electronic device that has two stable states. It is also called a flip-flop and is used as a latch to hold data.
bistable
Latch aka
bistable
Characteristics of digital
data can be stored data can be used in calculations compatible with display technologies compatible with computer technologies systems an be programmed digital IC make design easier
A square wave is an example of a(n) __________ signal.
digital
A(n) __________ signal is one whose output varies at discrete voltage levels commonly referred to as HIGH or LOW (1 or 0)
digital
Electronic circuits that store information and make calculations are probably __________ (analog, digital) in nature.
digital
Electronic devices that can be programmed and have alphanumeric displays probably contain __________ (analog, digital) circuitry.
digital
Monostable
emits single pulse when triggered
Bistable
has two stable states and must be triggered to jump
An input voltage of +3.5V to a TTL IC (+5V supply) would be considered a __________ (H, L, undefined) logic level.
high
An input voltage of +9V to a CMOS IC (+10V supply) would be considered a __________ (H, L, undefined) logic level.
high
In CMOS (using a 10V power supply), a voltage of 9V would light the __________ (HIGH, LOW, Undefined) indicator on a logic probe.
high
Probe middle light
high
Two types of mounts
insertion and surface
A(n) __________ multivibrator is an electronic device that generates a single digital pulse when triggered.
monostable
A(n) __________ multivibrator is an electronic device that is sometimes called a one-shot MV.
monostable
One shot aka
monostable
Characteristics of analog
most real "real world" things are analog, processing simpler, processing faster, traditional electronics
Astable
oscillates between two stable states (clock)
If the input to a logic probe is 50Hz square wave, the output would __________ (read HIGH, toggle between HIGH and LOW).
toggle between HIGH and LOW
In the lab, a simple LED indicator circuit can be built using a __________ (transistor, voltage comparator) to drive the LED.
transistor
