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2-W Stereo Audio Power Amplifier, with Advanced DC …
https://www.ti.com/lit/ds/symlink/tpa6012a4.pdf
3-WSTEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL Check for Samples :TPA6012A4 1FEATURES DESCRIPTION 2• Advanced 32 Steps DC Volume Control – Steps From – 40 dB to 18 dB The TPA6012A4 is a stereo audio power amplifier – Fade Mode that drives 3 W/channel of continuous RMS power into a 3-Ω load. Advanced dc volume control
TDA7056AT 3 W mono BTL audio amplifier with DC …
https://www.nxp.com/docs/en/data-sheet/TDA7056AT.pdf
The maximum gain of the amplifier is fixed at 35.5 dB. The DC volume control stage has a logarithmic control characteristic. The total gain can be controlled from +35.5 to −44 dB. If the DC volume control voltage is below 0.3 V, the device switches to the mute mode. The amplifier is short-circuit proof to ground, VP and across the load.
TDA8944AJ 2 x 7 W BTL audio amplifier with DC gain …
https://www.nxp.com/docs/en/data-sheet/TDA8944AJ.pdf
The TDA8944AJ is a dual-channel audio power amplifier with DC gain control. It has Bridge-Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic. The overall gain can be adjusted from +30 dB down to −50 dB using a DC control voltage. This feature can be used for volume control or a preset gain.
TDA8946AJ 2 x 15 W BTL audio amplifier with DC …
https://www.nxp.com/docs/en/data-sheet/TDA8946AJ.pdf
The TDA8946AJ is a dual-channel audio power amplifier with DC gain control. It has two Bridge-Tied Load (BTL) amplifiers with an all-NPN output stage and standby/mute logic. The overall gain can be adjusted from +30 dB down to −50 dB using a DC control voltage. This feature can be used for volume control or for a preset gain.
TDA7052B Mono BTL audio amplifier with DC volume …
https://www.nxp.com/docs/en/data-sheet/TDA7052B.pdf
The maximum gain of the amplifier is fixed at 40.5 dB. The DC volume control stage has a logarithmic control characteristic. Therefore, the total gain can be controlled from 40.5 dB 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 proof to ground, VP and
Simple Audio Circuits - Making Easy Circuits
https://makingcircuits.com/blog/audio-amplifier-circuits-using-fet/
Once the DC control is zero, the voltage gain of the stage becomes 10, with a maximum accurate signal of 1 V rms. At the time the control voltage is 6 V DC, the stage output is lessened to 0.5 mV rms (better than 90 dB range). A lesser DC control voltage can be utilised provided less decibel change is required.
What Is A Gain Control? (It's NOT a Volume ... - Extreme …
https://www.extremeaudio.org/what-is-a-gain-control/
Enter the gain control. The purpose of a gain control is to tune the amp’s input stage to accept the head unit’s voltage level. Think about it like a cellphone conversation. Your job is to listen to the person on the other end. With phone turned down too low, you can’t hear the other person over the background noise around you.
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