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