Features
 Wide-range supply voltage, 4.5 V to 21.5 V
 Three power output configurations:
– 2 channels of ternary PWM (2 x 20 W into
8  at 18 V) + PWM output
– 2 channels of ternary PWM (2 x 20 W into
8  at 18 V) + ternary stereo line-out
– 2.1 channels of binary PWM (left, right,
LFE) (2 x 9 W into 4  +1 x 20 W into 8 
at 18 V)
 FFX with 100-dB SNR and dynamic range
 Scalable FFX modulation index
 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
 Two independent DRCs configurable as a
dual-band anticlipper (B2DRC) or as
independent limiters/compressors
 EQ-DRC for DRC based on filtered signals
 Dedicated LFE processing for bass boosting
 Audio presets:
– 15 preset crossover filters
– 5 preset anticlipping modes
– Preset nighttime listening mode
 Individual channel soft/hard mute
 Independent channel volume and DSP bypass
 I2S input data interface
 Input and output channel mapping
 Automatic invalid input-detect mute
 Up to 8 user-programmable biquads/channel
 Three coefficient banks for storing EQ presets
with fast recall via I2C interface
 Bass/treble tones and de-emphasis control
 Selectable high-pass filter for DC blocking
 Advanced AM interference frequency
switching and noise suppression modes
 Selectable high- or low-bandwidth
noise-shaping topologies
 Selectable clock input ratio
 96-kHz internal processing sample rate
 Thermal overload and short-circuit protection
technology
 Video apps: 576 x fS input mode supported
 Pin and SW compatible with STA333BW,
STA339BW, STA559BW and STA559BWS