The mixer circuit below has 3 line inputs and 3 mic inputs. The mic inputs are suitable for low impedance 200-1000R dynamic microphones. An ECM or condenser mic can also be used, but must have bias applied via a series resistor. As with any mixer circuit, a slight loss is always introduced. The final summing amplifier has a gain of 2 or 6dB to overcome this. The Input line level should be around 200mV RMS. The mic inputs are amplified about 100 times or by 40dB, the total gain with the mixer is 46dB. The mic input is designed for microphones with outputs of about 2mV RMS at 1 meter. Most microphones meet this standard.
6 Input Mixer Schematics
Tags
Make Your Own Printed Circuit Boards
Make a PCB in very easy steps..! Create your PCB design using PCB designer software like Eagle, print out your design on photo paper or glossy paper with laserjet printer. Stick the printed design on the PCB (copper side) and then heat it using hot iron plate. The ink will stick on the PCB and it will be ready for etching process.
Watch this video detailed steps:
Note: If you don't have laserjet printer, then you can print the design on standard paper. Copy the printed design at Copy Service around your location (with glossy paper).
Artikel Terkait
- Short circuit protection, 94dB supply rejection ratio, thermal protection, S/N ratio in e
- This is schematic diagram of 10 watt power audio amplifier using TDA2009A as the main com
- This is a 2-station simple intercom circuit build based on transistors part and using
- Below is a schematic diagram of the 80W power amplifier based on single Power IC TDA7295.
- This is the circuit diagram of dynamic mic amplifier. This simple and easy built circu
- Here the 18W audio amplifier circuit which powered by IC HA13118 as the main component.Th
Post a Comment
Subscribe to:
Post Comments (Atom)