DESCRIPTION
The STA320 is a single chip solution for digital audio processing and control in 2.1-channel applications. It provides output capabilities for DDXTM (Direct Digital Amplification). In conjunction with a DDXTM power device, it provides high-quality, high-efficiency, all digital amplification.

FEATURES
■ 2.1 Channels of 24-bit DDXTM
■ >100dB SNR and Dynamic Range
■ Selectable 32kHz-192kHz Input Sample Rates
■ I2C control with Selectable Device Address
■ Digital Gain/Attenuation +48dB to -90dB in 0.5dB steps
■ Soft Volume Update
■ Individual Channel and Master Gain/ Attenuation
■ Dual Independent Limiters/Compressors
■ Dynamic Range Compression or Anti-Clipping Modes
■ AutoModesTM:
   – 7 Preset Crossover filters
   – 32 Preset EQ Settings
   – Auto Volume Controlled Loudness
   – 3 Preset Volume Curves
   – 2 Preset Anti-Clipping Modes
   – Preset Nighttime Listening Mode
   – Preset TV AGC
■ Individual Channel and Master Soft and Hard Mute
■ Independent Channel Volume and DSP Bypass
■ Automatic Zero-Detect Mute
■ Automatic Invalid Input Detect Mute
■ 2-Channel I2S Input Data Interface
■ Input and Output Channel Mapping
■ 4 28-bit User Programmable Biquads (EQ) per channel
■ Bass/Treble Tone Control
■ DC Blocking Selectable High-Pass Filter
■ Selectable De-emphasis
■ Post-EQ User Programmable mix
■ User Programmable 2.1 Bass Management
■ Sub Channel Mix into Left and Right Channels
■ Advanced AM Interference Frequency Switching and Noise Suppression Modes
■ Selectable High or Low Bandwidth Noise Shaping Topologies
■ Variable Max Power Correction for lower fullpower THD
■ 3 or 4 Output Routing Configurations
■ Selectable Clock Input Ratio
■ 96kHz Internal Processing Sample Rate, 24 to 28-bit precision