مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

The PT2033 is an audio processor designed for versatile application, it includes 3 stereo input selector with internal gain, master volume control with low frequency loudness compensation, individual channel output volume adjust and tone control. If a system wants subwoofer signal output, traditional solution needs a lot of discrete components and OPAMP to consist of low pass filter; in the PT2033, just needs 2 capacitors only. The PT2033 combine the low pass filter inside the audio processor and user may determine low pass corner frequency by the capacitance. Broader supply range emphasis support to every application.

Features

• CMOS technology
• Controlled by I2C interface
• 3 Stereo Inputs with gain selection. Input gain range, from 0dB to +11.25dB, 3.75dB per step
• 2 channels master volume: from 0 dB to -78.75dB, 1.25dB per step
• Built In channel mixer and lowpass filter for subwoofer output
• Subwoofer output volume : from 0dB to -37.5dB, 1.25dB per step
• Tone control (Bass and Treble): from -14dB to +14dB, 2dB per step
• Wide operation range(VDD from 4V to 10V)
• Low harmonic distortion (0.002%, V0 = 200mVrms)
• Low noise and DC offset
• 32-pin SOP package

Applications

• TV
• Mini compo
• Multimedia speaker Audio docking system