Description
PT2313 is an four-channel digital audio processor utilizing CMOS Technology. Volume,
Right/Left Bass and Treble Balance, Front/Rear Fader Processor are incorporated into a single
chip. Loudness Function and Selectable Input Gain are also provided to build a highly effective
electronic audio processor having the highest performance and reliability with the least external
components. All functions are programmable using the Serial Bus. The pin assignments and
application circuit are optimized for easy PCB layout and cost saving advantage for audio
application. PT2313 is housed in a 28-pin DIP/SO Package and is functionally compatible withTDA7313.

Features
r CMOS Technology
r Least External Components
r Treble and Bass Controlr Loudness Function
r 3 Stereo Inputs with Selectable Input Gain
r Input/Output for External Noise Reduction System/Equalizer
r 4 Independent Speaker Controls for Fader and Balancer Independent Mute Function
r Volume Control in 1.25 dB/stepr Low Distortion
r Low Noise and DC Stepping
r Controlled by Serial Bus Micro-Processor Interface

Applications
r Car Stereo (Audio)
r Hi-Fi Audio System