STA323WQS Datasheet, PDF (1/78 Pages) STMicroelectronics – 2.1-channel high-efficiency digital audio system with QSound QHD®

STA323WQS
2.1-channel high-efficiency digital audio system
with QSound QHD^®
Features
! Wide supply voltage range (10 V - 36 V)
! Three power output configurations
– 2 x 10 W + 1 x 20 W
– 2 x 20 W
– 1 x 40 W
! Thermal protection
! Under-voltage protection
! Short-circuit protection
! PowerSO-36 slug down 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 and hard
mute
! Individual channel volume and EQ bypass
! DDX^® POP free operation
! 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
PowerSO-36
(slug down)
! Input and output channel mapping
! AM noise-reduction and PWM frequency
shifting modes
! Soft volume update and muting
! Auto zero detect and invalid input detect
muting selectable DDX^® ternary or binary
PWM output plus 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
! QSound QHD^®
– Field proven stereo soundfield
enhancement technology
– Provides improved audio image width,
seperation and depth for stereo signals
– Synthesizes a 3-D stereo soundfield
Table 1. Device summary
Order code
Package
STA323WQS
PowerSO-36 (slug down)
STA323WQS13TR
PowerSO-36 in tape & reel
May 2008
Rev 2
1/78
www.st.com
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