Description FFX
The STA335W is an integrated solution of digital audio processing, digital amplifier control, and FFX -power output stage, thereby creating a high-power single-chip FFX solution comprising high-quality, high-efficiency, all digital amplification.

Features
■ Wide voltage supply range
    – 5 V to 26 V (operating range)
    – 30 V (absolute maximum rating)
■ 2 channels of ternary PWM (stereo mode) (2 x 20 W into 8Ωat 18 V)
■ 2.0 channels of 24-bit FFX100 dB SNR and dynamic range
■ Selectable 32 to 192 kHz input sample rates
■ I2C control with selectable device address
■ Digital gain/attenuation +48 dB to -80 dB with 0.5 dB/step resolution
■ Soft volume update with programmable ratio
■ Individual channel and master gain/attenuation
■ Individual channel and master soft/hard mute
■ Automatic zero-detect mute
■ Automatic invalid input-detect mute
■ 2-channel I2S input data interface
■ Advanced AM interference frequency switching and noise suppression modes
■ Selectable high- or low-bandwidth noise-shaping topologies
■ Variable max power correction for lower full-power THD
■ Selectable clock input ratio
■ 96 kHz internal processing sample rate, 24 to 28-bit precision
■ Thermal overload and short-circuit protection embedded
■ Video apps: 576 x Fs input mode supported
■ Fully compatible with STA335BW (on the common registers).