Circuit audio mixer Microphone + line in

Circuit audio mixer Microphone + line in

Microphone head and audio mixer circuit with volume. Simply use operational amplifiers to mix the sound of the microphone head with the input audio, low cost, simple and practical. The hardware can be viewed in the engineering schematic, which has been detailed and annotated.

About audio + microphone mixer

An audio + microphone mixer is an essential tool for anyone working in the field of sound production or live performance. This device allows users to blend multiple audio sources, such as instruments, microphones, and playback devices, into a single output signal. By adjusting the levels and tones of each input, the mixer enables users to achieve a balanced and harmonious sound. Additionally, many mixers offer features such as equalization, effects processing, and routing capabilities, allowing for further customization and control over the audio signal. Overall, an audio + microphone mixer is a versatile and powerful tool that is indispensable for achieving high-quality sound in a variety of settings.

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Schematic Circuit audio mixer Microphone + line in NE5532

Circuit Audio Mixer Microphone + Line In

Microphone head section:

Circuit Audio Mixer Microphone + Line In Mic
Microphone Input


Circuit Audio Mixer Microphone + Line In Power Supply

Power Supply

Circuit Audio Mixer Microphone + Line In
Power Supply

About IC NE5532

The IC NE5532 is a dual operational amplifier that is widely used in audio applications due to its low noise, high slew rate, and wide bandwidth. It has a high output current capability, making it suitable for driving headphones and speakers. The NE5532 is known for its excellent audio performance, with low distortion and high signal-to-noise ratio. It is commonly used in audio mixers, preamplifiers, equalizers, and other audio equipment where high-quality sound reproduction is important. Its versatile design and reliable performance make it a popular choice among audio engineers and enthusiasts.

PDF Datasheet IC NE5532

BOM Circuit audio mixer Microphone + line in

Parts Value Description Quantity
C1,C2,C5,C8,C10,C11,C12 4.7uF C0603 – SMD ceramic capacitor 7
C3 330nF C0603- SMD ceramic capacitor 1
C4,C6,C9,C16 100pF C0603 – SMD ceramic capacitor 4
C13,C14 10uF 10uF 25V CASE-B-3528 Tantalum Capacitor 2
C15 100nF C0603 – SMD ceramic capacitor 1
R1 470 R0603 – SMD resistor 1
R2,R15 20K R0603 – SMD resistor 2
R3 2.2K R0603 – SMD resistor 1
R4,R9,R16 180K R0603 – SMD resistor 3
R5,R17 200K R0603 – SMD resistor 2
R7,R8,R10,R11,R12,R14 10K R0603 – SMD resistor 6
U1 NE5532DR Dual 10MHz SOIC-8 Operational Amplifier 1
CN1,CN2 PJ3F07-5P 3.5 mm headphone jack 2
H1,H2,H3,H4 PZ254V-11-02P HDR-TH_2P-P2.54-V-M 4
R6,R13 10 kΩ (103) Potentiometer 2
SCREW1 M3 screw M3 screw 1

Download files, links, and notes

Circuit Audio Mixer Microphone + Line In Pcb 3D
Pcb 3D


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About the author blog author. Electronics technician for the technical school of Brasilia - Brazil. Interested in electronics, circuits and technology in general.

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