All Questions

Filter by
Sorted by
Tagged with
0
votes
0answers
43 views

Remove Echo in an Op Amp

I have been working with a distortion circuit that has an op amp amplifying the volume before sending it through the diodes. The op amp is configured as a non-inverting op amp with a feedback resistor ...
0
votes
0answers
79 views

What is wrong with this single supply opamp circuit for audio?

I am currently building an output stage for a DAC with opamps, in single supply configuration. Here is my circuit from LTspice: I have exactly built this on PCB, so I am talking about the real thing ...
1
vote
0answers
74 views

Can this circuit be simplified?

The circuit is a LPF with a buffer stage in front of it that uses a linear pot. to control gain & attenuation. The setup is such that the response of the linear pot. is similar to a log. pot.. A ...
1
vote
0answers
265 views

Audible Ticking in Audio Opamp Circuit

I'm experimenting yet again with the following audio mixing circuit: On the scope with signal gen as source, everything looks great. When hooked up to the input of a mixer with a laptop as the source,...
1
vote
1answer
464 views

Design Active Filter for audio (60hz-20Khz) with configurable gain, single power supply

I am trying to design an Active Band Pass filter, to pass frequencies 60Hz (220 v electricity noise) to 20K, part of ADC system. My source signal is coming from Piezoelectric sensor, which means more ...
1
vote
1answer
384 views

dac output stage using single supply?

The following is a diagram from a DAC datasheet. It's an output stage for a high end audio DAC which has differential outputs. What would be the best way to implement this when only a single supply ...