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STMicroelectronics - 2.1-channel high-efficiency digital audio system

Numéro de référence STA335BWS
Description 2.1-channel high-efficiency digital audio system
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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STA335BWS fiche technique
STA335BWS
www.datasheet4u.com
2.1-channel high-efficiency digital audio system
Features
! Wide supply voltage range
– 4.5 V to 21.5 V operating
– 24 V absolute maximum rating
! Three power-output configurations
– 2-channel ternary PWM (stereo mode)
(2 x 20 W into 8 at 18 V)
– 3-channel (left, right using binary and LFE)
ternary PWM (2.1 mode) (2 x 9 W +
1 x 20 W into 2 x 4 , 1 x 8 at 18 V)
– 2-channel ternary PWM (2 x 20 W) +
stereo lineout 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
! Software volume update
! Individual channel and master gain/attenuation
! Dual independent limiters/compressors
! Dynamic range compression or anti-clipping
modes
! Automodes
– 15 preset cross-over filters
– 5 preset anti-clipping modes
– Preset night-time listening mode
! Individual channel and master software and
hardware mute
! Independent channel volume and DSP bypass
! Automatic zero-detect mute
! Automatic invalid input detect mute
PowerSSO-36
Exposed pad down
! 2-channel I2S input data interface
! Input and output channel mapping
! 4 x 28-bit user programmable biquads (EQ) per
channel
! Up to 3 different EQ coefficients settings can
be stored and selected using I2C interface
! 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
embedded
! Video application: 576 x fs input mode
supported
! PowerSSO-36 exposed pad down package
Figure 1. Device summary
Order code
STA335BWS
STA335BWS13TR
Package
PowerSSO-36 exposed pad down
PowerSSO-36 exposed pad down
Packaging
Tube
Tape and reel
January 2008
Rev 1
1/68
www.st.com
1

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