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Audio Volume Control Attenuator with IR Control
http://electronics-diy.com/audio-volume-control-attenuator-with-ir-control.php
Audio Volume Control Attenuator with IR Control The circuit provides both audio volume and input channel selection. A stepwise volume control is implemented with a set of small relays and resistors. In a high-end audio system, a noticable sound improvement over potentiomeneters can be obtained, also over 'audio grade' potentiometers.
Volume Control Circuit Schematic using DS 1669 ...
https://www.circuitstoday.com/digital-volume-controller
This is the circuit diagram of a digital volume controller for any sort of audio amplifiers or almost any circuit where a mechanical potentiometer is there (conditions apply). Simple and low cost, the heart of the circuit is DS 1669 digital potentiometer IC from Dallas Semiconductors. The circuit has no external components other than two pushbutton switches …
Stereo BTL audio output amplifier with DC volume …
https://www.nxp.com/docs/en/data-sheet/TDA7053A.pdf
The DC volume control stages have a logarithmic control characteristic. Therefore, the total gain can be controlled from +40.5 to −33 dB. If the DC volume control voltage falls below 0.4 V, the device will switch to the mute mode. The amplifier is short-circuit protected to ground, VP and across the load. A thermal protection circuit is also implemented.
10 Watt Audio Amplifier Circuit with Volume Control
https://bestengineeringprojects.com/10-watt-audio-amplifier-circuit-with-volume-control/
PARTS LIST OF 10-WATT AUDIO AMPLIFIER CIRCUIT WITH VOLUME CONTROL Resistor (all ¼-watt, ± 5% Carbon Unless Stated Otherwise) R 1 = 4.7 KΩ R 2 = 82 KΩ R 3 = 2.7 Ω VR 1 = 100 KΩ (Trimmer) Capacitors C 1 = 4.7 µF, 25V (Electrolytic Capacitor) C 2 = 0.22 µF (Ceramic Disc) C 3 = 1000 µF, 35V (Electrolytic Capacitor)
Audio Gain Control Using Digital Potentio | Maxim …
https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/1828.html
Historically, audio volume controls used a special kind of potentiometer with a log (or sometimes audio) taper or law (Figure 1). This approach derives from the roughly logarithmic response of the ear to changes in sound pressure levels. Figure 1. Logarithmic response of the potentiometer to changes in sound pressure levels.
MAX5486 Stereo Volume Control with ... - Maxim Integrated
https://www.maximintegrated.com/en/products/analog/data-converters/digital-potentiometers/MAX5486.html
Description. The MAX5486 dual 40kΩ logarithmic taper volume control features a debounced pushbutton up/down interface that controls volume and balance in audio applications. Each potentiometer has 32 log-spaced tap points with a buffered wiper output to …
A list of Simple audio circuits and amplifiers for DIY(Do ...
https://www.circuitstoday.com/simple-audio-circuits
NTE7230 Integrated Circuit 2 x 8W Stereo BTL Audio Output ...
https://www.nteinc.com/specs/7200to7299/pdf/nte7230.pdf
Integrated Circuit 2 x 8W Stereo BTL Audio Output Amplifier with DC Volume Control Description: The NTE7230 is a stereo BTL output amplifier with DC volume control in a 13−Lead Staggered SIP type package designed for use in TVs and monitors, but is also suitable for battery−fed portable recorders and radios.
Audio Amplifier Circuit - UC Santa Barbara
https://web.ece.ucsb.edu/Faculty/rodwell/Classes/ece2c/labs/Lab%201a%20-%202C%202007.pdf
designed as an audio driver, the LM386, shown in Figure 1-5. Figure 1-5 – LM386 internal circuit and 8-pin DIP pin assignments. This is an old chip that has been a popular choice for low-power audio applications for many years. There are many other audio amp ICs …
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