Timeline for Audio Mixer Circuit with Individual Volume
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 26, 2023 at 3:35 | comment | added | Audioguru | The OPA134 works very well with a supply that is 30V. As most opamps, with a 5V supply the max output level (about 1V RMS) will be very low nit then it an drive a power amplifier that is using a higher supply voltage. | |
| Aug 12, 2023 at 7:04 | comment | added | SukkoPera | I see, is there another opamp that would work with a single 5V supply that you'd recommend for this circuit? What about OPA2134PA for instance? | |
| Aug 12, 2023 at 1:09 | comment | added | Audioguru | I have never used a TLC272 because it is Cmos with a high noise level. With a +5V supply, the +inputs of both opamps must be biased from a filtered +2V because the inputs on most of them do not work if higher than 4V. | |
| Aug 11, 2023 at 18:40 | comment | added | SukkoPera | Thanks, but I will be using a TLC272, not a TL072. | |
| Aug 11, 2023 at 18:02 | history | answered | Audioguru | CC BY-SA 4.0 |