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AN49: Digital Audio Amplifier Gain Control using ...
https://www.renesas.com/us/en/document/apn/an49-digital-audio-amplifier-gain-control-using-logarithmic-intersil-digitally-controlled
Digital Audio Amplifier Gain Control using Logarithmic Intersil Digitally Controlled Potentiometers (XDCPs) APPLICATION NOTE AN49Rev 0.00 Page 1 of 3 Apr 21, 2005 AN49 Rev 0.00 Apr 21, 2005 Often the power amplifier stage of a communications device is located some distance from the control panel. The typical
AN-311Theory and Applications of Logarithmic …
https://www.ti.com/lit/an/snoa575b/snoa575b.pdf
most logarithmic circuits, on the inherent logarithmic relationship between collector current and VBE in ... The circuit's gain is set by the 15.7 kΩ-1kΩdivider to a factor of 1V/decade. ... This circuit is intended for laboratory and audio studio applications requiring an
Why should I use a logarithmic pot for audio applications?
https://electronics.stackexchange.com/questions/101191/why-should-i-use-a-logarithmic-pot-for-audio-applications
It has gain adjustable from +31.5dB to −95.5dB in 0.5dB Steps. A step of 0.5dB is considered to be just perceptible. That's an 8-bit number to …
Logarithmic Amplifiers Explained | Analog Devices
https://www.analog.com/en/analog-dialogue/articles/logarithmic-amplifiers-explained.html
The log amp's output signal, which can represent a many-decade dynamic range of high-frequency input signal amplitudes by a relatively narrow range, is typically used to regulate gain. The classic example of this is using a log amp in an automatic gain control loop, to regulate the gain of a variable-gain amplifier.
Logarithmic Audio Volume Control with Glitch …
https://www.analog.com/media/en/technical-documentation/application-notes/AN-1209.pdf
low distortion logarithmic audio volume control with glitch reduction. The logarithmic taper is achieved by adding resistor R8 between the wiper connection and ground. This method is described in detail in the article “Tack a Log Taper onto a Digital Potentiometer” by Hank Zumbahlen, EDN, 1/20/00.
Audio Gain Control Using Digital Potentiometers - …
https://pdfserv.maximintegrated.com/en/an/AN1828.pdf
digital pots available for audio control such as logarithmic taper pots (log pots). It examines several common designs using log taper pots and audio amplifiers, evaluates their advantages and disadvantages, and recommends circuit designs. A similar version of this article appeared in the January 7, 2002 issue of EE Times magazine. Introduction
Audio Gain Control Using Digital Potentio | Maxim …
https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/1828.html
Abstract: Digital potentiometers (pots) offer advantages for audio volume (gain) control applications and can replace bulky mechanical pots, especially in handheld portable devices such as MP3 players, PDAs, cell phones, mobile Internet devices, or stereo AM/FM radios. This document describes the types of digital pots available for audio control such as logarithmic …
Linear vs. Logarithmic (Audio Taper) Pots on Humbuckers ...
https://www.thegearpage.net/board/index.php?threads/linear-vs-logarithmic-audio-taper-pots-on-humbuckers.1369780/page-2
Audio or Log means it work on a logarithmic curve (mathematical). See image shows the difference. ... it's entirely possible that 300K or some other value for humbuckers works fine for the purpose but for sure you want logarithmic pots for gain to be turned clean without having to turn the pot all the way down. But with that said, log pots suck ...
Potentiometer type for op-amp gain - All About Circuits
https://forum.allaboutcircuits.com/threads/potentiometer-type-for-op-amp-gain.51119/
You cannot use an "ordinary" logarithmic audio pot for the gain control because its response will be backwards. It should be linear or reverse-log type. If you use a linear pot for a volume control and turn it down to half then the volume will be reduced only a little. If you turn it down from half to 1/4 then the volume will be reduced a ...
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