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STMicroelectronics Electronic Components Datasheet

STA335BWSQS Datasheet

high-efficiency digital audio system

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STA335BWSQS
2.1-channel, high-efficiency digital audio system
with QSound QHD®
Features
! Wide supply voltage range
– 4.5 V to 21.5 V operation
– 23-V absolute maximum rating
! 3 power output configurations
– 2 channels of ternary PWM (stereo mode)
(2 x 20 W into 8 at 18 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 , 1 x 8 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
– 15 preset crossover filters
– 5 preset anti-clipping modes
– Preset night-time listening mode
! Individual channel and master soft and hard
mute
! Independent channel volume and DSP bypass
PowerSSO-36
slug down
! Automatic zero-detect mute
! 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
! Up to 3 different EQ coefficients settings can
be stored and selected using I2C interface
! 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
! Thermal overload and short-circuit protection
! Video application supports 576 * fS 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
STA335BWSQS
STA335BWSQS13TR
Package
PowerSSO-36 slug down
PowerSSO-36 slug down
Packaging
Tube
Tape and reel
March 2009
Rev 1
1/70
www.st.com
1


STMicroelectronics Electronic Components Datasheet

STA335BWSQS Datasheet

high-efficiency digital audio system

No Preview Available !

Contents
Contents
STA335BWSQS
www.datas1heet4u.com
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2 QSound QHD® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2 Pin list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 Pinout diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2 Recommended operating condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.3 Electrical specifications - digital section . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4 Electrical specifications - power section . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.5 Power-on sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.6 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.6.1 Functional pin status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Processing data paths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 I2C bus specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1 Communication protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1.1 Data transition or change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1.2 Start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1.3 Stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1.4 Data input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Device addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.3 Write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3.1 Byte write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3.2 Multi-byte write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.4 Read operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.4.1 Current address byte read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.4.2 Current address multi-byte read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2/70


Part Number STA335BWSQS
Description high-efficiency digital audio system
Maker ST Microelectronics
Total Page 30 Pages
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