CD3313LEOVB28.TR

CD3313L is an audio processing IC featuring volume, tone (bass, treble), balance (left, right), and loudness (front, rear) control, designed for high-quality car audio and hi-fi audio systems. The device offers input gain selection and local loudness control, with all functions operated via a serial I²C bus connectable to a microprocessor. A wide range of AC frequency response characteristics can be configured through external RC networks in conjunction with internal op-amps. Fabricated using a high-performance bipolar/CMOS process, the device achieves low distortion, low noise, and minimal DC offset drift. This circuit is a low-voltage version with a typical operating voltage of 5V.

Key features

• Integrated multi-input selector
• Three stereo signal inputs
• Configurable input gain for matching various signal sources
• Four-channel independent attenuation control
• Four independently controllable channels with ~1.25 dB steps for balance and loudness control
• Independent mute control per channel
• All functions controlled via serial I²C bus
• Loudness control
• Volume control in ~1.25 dB steps
• Treble and bass control
• Input/output compatible with external equalizer and noise suppression circuits
• Package: SOP28/SSOP28 (0.635mm)