CD3313EOVB28.TR

CD3313 is a four-channel audio processor integrating volume, tone (bass, treble), balance (left, right), and loudness (front, rear) control functions. It is suitable for high-quality automotive audio systems and hi-fi audio systems. The circuit provides input gain selection and local loudness control. All controls are operated via a serial I²C bus connectable to a microcontroller. By combining external RC networks with internal op-amps, various AC frequency response characteristics can be configured. The device employs high-performance bipolar/CMOS process technology to achieve low distortion, low noise, and low DC level drift. Available packages include SOP28, SSOP28 (0.65mm), and SSOP28 (0.635mm).

Applications

• Automotive audio systems
• Hi-Fi audio systems

Key features

• Integrated multi-input selector
• 3 stereo signal inputs
• Programmable input gain for source matching
• 4-channel attenuation with independent channel control
• Balance and loudness control with 1.25 dB per step attenuation and boost
• Independent mute control
• All functions controlled via serial I²C bus
• Loudness control
• Volume control at 1.25 dB per step
• Treble and bass control
• Input/output compatible with external equalizer and noise suppression circuits