STMicroelectronics STA328

Description

Overview
The STA328 comprises digital audio processing, digital amplifier control and DDX® power output stage to create a high-power single-chip DDX® solution for high-quality, high-efficiency, all digital amplification.

Features

! Wide supply voltage range (10 V - 36 V)
! Three power output configurations
–2x40W + 1x80W
–2x80W
–1x160W
! PowerSO-36 package
! 2.1 channels of 24-bit DDX®
! 100-dB SNR and dynamic range
! 32 kHz to 192 kHz input sample rates
! Digital gain/attenuation +48 dB to -80 dB in 0.5-dB steps
! Four 28-bit user programmable biquads (EQ) per channel
! I2C control
! 2-channel I2S input data interface
! Individual channel and master gain/attenuation
! Individual channel and master soft/hard mute
! Individual channel volume and EQ bypass
! Bass/treble tone control
! Dual independent programmable limiters/compressors
! AutoModes
– 32 preset EQ curves
– 15 preset crossover settings
– Auto volume controlled loudness
– 3 preset volume curves
– 2 preset anti-clipping modes
– Preset night-time listening mode
– Preset TV AGC
! Input and output channel mapping
! AM noise-reduction and PWM frequency-shifting modes
! Software volume update and muting
! Auto zero detect and invalid input detect muting
! Selectable DDX® ternary or binary PWM output + variable PWM speeds
! Selectable de-emphasis
! Post-EQ user programmable mix with default 2.1 bass-management settings
! Variable max power correction for lower full power THD
! Four output routing configurations
! Selectable clock input ratio
! 96 kHz internal processing sample rate, 24 to 28-bit precision
! Video application supports 576 * fs input mode.