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Variable-gain amplifier - Wikipedia
https://en.wikipedia.org/wiki/Variable-gain_amplifier#:~:text=From%20Wikipedia%2C%20the%20free%20encyclopedia%20A%20variable-gain%20or,including%20audio%20level%20compression%2C%20synthesizers%20and%20amplitude%20modulation.
Variable Gain Amplifiers (VGA) | Analog Devices
https://www.analog.com/en/products/amplifiers/variable-gain-amplifiers.html
Variable Gain Amplifiers (VGA) Variable gain amplifiers (VGAs) are used in a variety of remote sensing and communications equipment. Variable gain amplifiers deliver unmatched performance for signal chains that require high dynamic range. Applications ranging from ultrasound, radar, LIDAR, wireless communications, and speech analysis have utilized VGAs to …
Activity: Variable Gain Amplifiers [Analog Devices Wiki]
https://wiki.analog.com/university/courses/electronics/electronics-lab-variable-gain-amplifier
A variable-gain or voltage-controlled amplifier is an electronic amplifier that varies its gain depending on a control voltage. This type of circuit has many applications, including audio level compression, synthesizers and amplitude modulation.
The 10 Best Variable Gain Amplifiers To Buy - January …
https://wekompare.com/variable-gain-amplifiers
Vega Barebones - Ultra Low-Noise Variable Gain Amplifier (VGA) Module for RF & Software Defined Radio (SDR). Highly Linear & Wideband 30MHz-4000MHz Frequency Capability w/Bias Tee & USB Power Options. A wideband (30MHz-4000MHz), high-performance, general purpose LNA module with a built-in variable attenuator to maximize usability and portability.
Analog Control Variable Gain Amplifiers (VGAs) | Analog ...
https://www.analog.com/en/products/amplifiers/variable-gain-amplifiers/analog-control-vgas.html
Analog Devices voltage controlled variable gain amplifiers (VGAs) provide continuous gain control over a wide dynamic range for a variety of audio and optical frequency bands. Our VGAs improve the dynamic range of a circuit by allowing users to adjust a signal’s amplitude in real time, which is invaluable for ultrasound, speech analysis, radar, wireless communications, and …
Programmable & variable gain amplifiers (PGA/VGA ...
https://www.ti.com/amplifier-circuit/pga-vga/overview.html
Variable gain amplifiers. to meet your varying performance requirements. Gains up to 1000V/V and bandwidths to 4.5GHz - get the right gain at the right time. We offer a wide range of variable and programmable gain amplifiers capable of improving the dynamic range of a circuit with the ability to adjust the amplitude of the signal in real time.
Op-Amp Variable Gain Amplifier Circuit - Electronics Notes
https://www.electronics-notes.com/articles/analogue_circuits/operational-amplifier-op-amp/variable-gain-amplifier.php
Op amp variable gain circuit. The circuit is very simple, and only uses one additional component over that of a basic operational amplifier circuit. The circuit simply uses a single variable gain amplifier. The circuit uses a single operational amplifier, two resistors and a variable resistor. Additionally not only is the gain varied but also the sign.
Simple variable gain amplifier | diyAudio
https://www.diyaudio.com/community/threads/simple-variable-gain-amplifier.337583/
A simple solution which doesn't need an MCU is AD603 - its a DC voltage controlled variable gain amp with a range of about 40dB. It does have rather a lot of gain though when the volume's up to maximum so you need to attenuate the signal at the input. I use a transformer for this but you could equally use a suitable resistor.
Amplifier Voltage Gain Explained – Matching Amp to …
https://www.audioholics.com/audio-amplifier/amplifier-voltage-gain
Every 6dB of gain equates to a doubling of voltage; as such, a hypothetical amplifier with a voltage gain of 30dB will increase voltage by 2^5, or by a factor of 32. For unbalanced inputs, the THX standard gain level is 29dB; utilizing balanced inputs decreases this to 23dB, though naturally the output of the preamp is boosted by 6dB under this scenario (i.e. …
Class D power amps with Variable Gain? | Audio Science ...
https://www.audiosciencereview.com/forum/index.php?threads/class-d-power-amps-with-variable-gain.14156/
The "problem" is that most power amps do not offer variable gain. Exceptions I have found are XTZ Edge A2-300 and Crown XLS 1502 or 2502. Both get good reviews, but do not appear to benefit from the latest state-of-the art within this technology, such as the Hypex NC400. My questions are:
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