What do these abbreviations stand for? PWM PPM PAM PCM ASK FSK PSK AM FM IF AF RF TRF amp Pulse...
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What do these abbreviations stand for? PWM PPM PAM PCM ASK FSK PSK AM FM IF AF RF TRF amp Pulse width modulation Pulse position modulation Pulse amplitude modulation Pulse code modulation Amplitude switch keying Frequency switch keying Phase switch keying Amplitude modulation Frequency modulation Intermediate frequency Audio frequency Radio frequency Tuned radio frequency amplifier
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Change in Logic Level So change in phase No Change in Logic Level So no change in phase Change in Logic Level So change in phase
Transcript of What do these abbreviations stand for? PWM PPM PAM PCM ASK FSK PSK AM FM IF AF RF TRF amp Pulse...
What do these abbreviations stand for?PWM
PPM
PAM
PCM
ASK
FSK
PSK
AM
FM
IF
AF
RF
TRF amp
Pulse width modulation
Pulse position modulation
Pulse amplitude modulation
Pulse code modulation
Amplitude switch keying
Frequency switch keying
Phase switch keying
Amplitude modulation
Frequency modulation
Intermediate frequency
Audio frequency
Radio frequency
Tuned radio frequency amplifier
Change in Logic Level
So change
in phase
No Change in Logic Level
So no change
in phase
Change in Logic Level
So change
in phase
Low-pass filter Sample / sample and hold
ADC
Flash converter
PISO shift register
Analogue signal input
Astable 1 (oscillator)
Astable 2 (oscillator)
PCM signal output
Schmitt trigger regenerator
SIPO shift register
DAC
Digital to analogue converter
Low pass filterPCM
input
Astable (oscillator)
Analogue signal output
