CD3313 PDF Datasheet – Four-channel Audio Processor

An audio processor is an electronic device or integrated circuit (IC) that is designed to manipulate and enhance audio signals. It performs a variety of functions to modify audio signals in ways that improve their quality, optimize their performance, or add special effects. Audio processors are used in a wide range of applications, including music production, sound reinforcement systems, consumer electronics, and communication systems.

Part Number: CD3313

Function: Four-channel Audio Processor

Package: SOP 28, DIP 28 Pin Type

Manufacturer: EONMIC, Wuxi I-CORE Electronics

Images:CD3313 pinout pdf


CD3313 is an audio processing circuit with volume, tone (bass, treble), balance (left, right) and loudness (front, rear) controls, suitable for high-quality car receivers, audio players and high-fidelity audio systems . This circuit provides input gain selection and local loudness control. All controls are operated through a serial I2C bus that can be connected to a microcomputer; various AC amplitude-frequency characteristics can be set through the cooperation of an external resistance-capacitance network and an internal operational amplifier. […]


1. Contains input multiplexer

2. Three-way stereo signal input

3. Input gain can be set to best match various sources

4. Four-channel attenuation

5. Four channels can be controlled independently. Cut and boost balance and loudness in 1.25dB steps

6. Independent mute control function

7. All functions are controlled via serial I2C bus

8. With loudness control function

9. Volume control 1.25dB per level

10. Treble and Bass controls

11. Input and output can be matched with external equalizer and noise suppression circuit

CD3313 datasheet

CD3313 PDF Datasheet