The xPT2313 is a 4-channel digital control audio processor providing Volume, Bass, treble, and Balance control functions to your audio circuits and amplifiers. Loudness function and selectable input gain are also provided to build a highly effective electronic audio processor with the highest performance and reliability with the fewest external components. All functions are programmable using the I2C bus.

Housed in a 28-pin SOIC package, PT2313 is a pin-drop replacement for TDA7313 and very similar in performance to it.

Features:

• Least external component count
• Treble and Bass control
• Loudness function
• 3 Stereo inputs with selectable gain
• I/O for external noise reduction syste, / equalizer
• 4 independent speaker controls for fader and balance
• Independent mute function
• Volume control in 1.25 dB/step
• Low distortion
• Low noise and DC stepping
• Pin compatible with TDA7313
• Easy to control using any microcontroller like an Arduino, 8051, or PIC over the I2C bus.