10 band equalizer

This circuit employs a single integrated circuit, TL074, to create a 5-band graphic equalizer suitable for high-fidelity audio systems. The equalizer is compatible with radio-cassette players and car stereos. It boasts low distortion and noise levels, a wide operating voltage range of 3.5V to 16V, low power consumption of 5 mA, and a wide dynamic range (DE = 2.1Vrms/VCC = 8V). Additionally, it includes input and output buffer amplifiers. The TL074 functions as a five-point graphic equalizer, integrating all necessary components for operation. The system features five frequency bands at 100Hz, 300Hz, 1kHz, 3kHz, and 10kHz. Detailed wiring diagrams for the 5-band graphic equalizer utilizing a single chip, BA3812L, are available in the accompanying PDF.

The 5-band graphic equalizer circuit using the TL074 integrated circuit is designed to enhance audio playback by allowing users to adjust the amplitude of specific frequency bands. The TL074 is a quad operational amplifier, which means it contains four op-amps in a single package, making it highly suitable for audio applications due to its low noise and distortion characteristics.

In this circuit, the five frequency bands are typically configured using band-pass filters that isolate the desired frequencies. Each filter is designed to have a specific center frequency, which corresponds to one of the five bands: 100Hz, 300Hz, 1kHz, 3kHz, and 10kHz. The output of each band-pass filter is then connected to a potentiometer, allowing for manual adjustment of the gain for each frequency band. The adjusted signals are then fed into the input buffer amplifier, which ensures that the output impedance is low, preserving the integrity of the audio signal.

The power supply for the circuit can range from 3.5V to 16V, providing flexibility for various applications. The low power consumption of 5 mA makes it suitable for battery-operated devices. The dynamic range of 2.1Vrms allows for a wide range of audio signals to be processed without significant distortion.

In summary, this 5-band graphic equalizer circuit effectively utilizes the TL074 op-amp to provide a comprehensive audio enhancement solution, making it ideal for high-fidelity audio systems, radio-cassette players, and car stereos. The inclusion of detailed wiring diagrams in the accompanying documentation further aids in the implementation of this circuit.This circuit uses a single chip, IC TL074 for achieving a 5-band graphic equalizer for use in Hi-fi audio systems. The 5-band graphic equalizer is true for radio-cassette player, and car stereos. This unit features: low distortion and low noise, wide range of operating power voltage (3. 5V to 16V), low-power (5 mA), Wide Dynamic Range (DE = 2. 1Vrms /VCC = 8V) and built an amplifier input and output buffer. The TL074 is a five-point graphic equalizer, which has integrated all the functions necessary for a CI. The IC is the system of five sounds and control input and an output buffer amplifier. The PDF below contains detailed information on the wiring diagram for the 5-band graphic equalizer with a single IC / chip (BA3812L).

The circuit shown in the table works around the five frequency bands: 100Hz, 300Hz, 1kHz, 3kHz, 10kHz. 🔗 External reference