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Introduction

The STA330 is a digital stereo audio processor with analog and digital input. It includes an audio DSP and FFX, a ST proprietary high-efficiency class-D driver. In conjunction with a power device, the STA330 provides high-quality digital amplification.

Features

■ Up to 96 dB dynamic range

■ Sample rates from 8 kHz to 192 kHz

■ FFX (digital modulation) class-D driver

■ Digital supply voltage from 1.5 V to 3.6 V

■ Analog supply voltage from 1.5 V to 3.6 V

■ 18-bit audio processing and class-D FFX digital modulator

■ 100-dB SNR analog to digital converter

■ Digital volume control:

– +36 dB to -105 dB in 0.5 dB steps

– Software volume update

■ Individual channel and master gain/attenuation

■ Automatic invalid-input detect mute

■ 2-channel serial input/output data interface

■ Digitally controlled pop-free operation