Acronym · Analog, RF & Mixed-Signal
VGA (Variable Gain Amplifier)
An amplifier whose gain can be adjusted electronically, used to keep a signal within a converter's input range as received power varies. Implementations may be continuously variable or stepped in discrete decibel increments.
- Also known as
- PGA (Programmable Gain Amplifier)
- Type
- Acronym
- Domain
- Analog, RF & Mixed-Signal, Amplifiers
Notes
Sits inside almost every automatic gain control loop, between the mixer and the baseband converter.
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