DESCRIPTION 

ET2313 is a four-channel digital control audio processor utilizing CMOS Technology. Volume, Bass, 

Balance, Front/Rear Fader Processor, Selectable Input Gain are incorporated into a single chip having the highest 

performance and reliability with the least external components. All functions are programmable using the I2

C Bus. 

ET2313 is housed in 28-pin DIP/SOP Package. The 28-pin version provides additional Two Band Tone Control 

and Loudness Function and is pin-to-pin compatible with TDA7313. Pin assignments and application circuits are 

optimized for easy PCB layout and cost saving advantages. 

FEATURES

● CMOS Technology 

● Least External Components 

● Treble and Bass Control 

● 3 Stereo Inputs with Selectable Input Gain 

● Input/Output for External Noise Reduction System/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 

● Controlled by I2C Bus Micro-Processor Interface 

● Pin-to-Pin Compatible with TDA7313 

● Package：SOP28(ET2313), DIP28(ET2313P)

PIN CONFIGURATION

APPLICATIONS 

● Car Stereo (Audio) 

● Hi-Fi Audio System ET2313 Rev 2.2 2007-12-27 2/15

● LCD Monitor