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Technical
Glossary - N
| A
| B | C
| D | E
| F | G
| H | I
| J,K | L
| M | N | O
| P | Q
| R | S
| T | U,V
| W,X,Y,Z | Spec.
Char., Number |
nano
A prefix that indicates a factor 10-9 (one billionth),
abbreviated as "n."
Nanosecond
One-billionth of a second, typically abbreviated
as "ns."
Narrow
Band
A vaguely defined term to indicate bandwidth less
than approximately one-third of an octave (1/3
of the center frequency).
Network
Analysis
The derivation of a network's electrical characteristics
(input and output impedance, forward and reverse
transfer characteristics, transient response,
etc.) through its configuration, component values
and response to driving signals.
Noise
Random, typically unwanted energy or electrical
variations.
Noise
Figure
The ratio of the input signal to noise ratio to
the output signal to noise ratio for a circuit
or system, expressed in decibels. The noise figure
of a receiver determines the minimum detectable
signal amplitude.
Noise
Floor
The level of signal below which a receiver cannot
detect a signal due to the noise generated within
the receiver.
Non-Harmonic
Signals
Spurious signals produced by a circuit, the frequencies
of which are not integral multiples of any signals
either produced or processed by the circuit.
Non-Linearity
An impedance that does not linear relationship
with voltage and current. The deviation of any
parameter from a linear relationship with another.
Non-recurring
Engineering
Engineering activity that is required to design,
develop or enhance a product but is not required
for the production of an existing product.
NPN
Transistor
A bipolar transistor with an n-type emitter, a
p-type base and an n-type collector.
NRE
(See "non-recurring engineering")
N-type
Material
A semiconductor material to which a donor dopant
has been added, resulting in net negative charge
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