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