STA335BWQS Datasheet, PDF (1/72 Pages) STMicroelectronics – 2.1-channel high-efficiency digital audio system with QSound QHD

STA335BWQS
2.1-channel high-efficiency digital audio system
with QSound QHD^®
Features
! Wide supply voltage range (4.5 V to 24 V)
! 3 power output configurations
– 2 channels of ternary PWM (stereo mode)
(2 x 20 W into 8 Ω at 18 V), (2 x 37 W into
8 Ω at 24 V)
– 3 channels - left, right using binary and LFE
using ternary PWM (2.1 mode) (2 x 9 W +
1 x 20 W into 2 x 4 Ω, 1 x 8 Ω at 18 V)
– 2 channels of ternary PWM (2 x 20 W) +
stereo line-out ternary
! 2.1 channels of 24-bit DDX^®
! 100-dB SNR and dynamic range
! Selectable 32 kHz to 192 kHz input sample
rates
! I²C control with selectable device address
! Digital gain/attenuation +48 dB to -80 dB in
0.5-dB steps
! Soft volume update
! Individual channel and master gain/attenuation
! Dual independent limiters/compressors
! Dynamic range compression or anti-clipping
modes
! AutoModes™ settings for:
– 15 preset crossover filters
– 2 preset anti-clipping modes
– Preset night-time listening mode
! Individual channel and master soft and hard
mute
! Independent channel volume and DSP bypass
! Automatic zero-detect mute
PowerSSO-36
slug down
! Automatic invalid input detect mute
! 2-channel I²S input data interface
! Input and output channel mapping
! 4 x 28-bit user programmable biquads (EQ) per
channel
! Bass/treble tone control
! DC blocking selectable high-pass filter
! Selectable de-emphasis
! 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
full-power THD
! Selectable clock input ratio
! 96 kHz internal processing sample rate, 24 to
28-bit precision
! Thermal overload and short-circuit protection
! Video application supports 576 x f_s input mode
! QSound QHD^®
– Field proven stereo soundfield
enhancement technology
– Provides improved audio image width,
separation and depth for stereo signals
– Synthesizes a 3-D stereo soundfield
! PowerSSO-36 slug down package.
Table 1. Device summary
Order code
STA335BWQS
STA335BWQS13TR
Package
PowerSSO-36 slug down
PowerSSO-36 slug down
Packaging
Tube
Tape and reel
May 2008
Rev 2
1/72
www.st.com
1