sta335bwsqs13tr STMicroelectronics, sta335bwsqs13tr Datasheet - Page 10

• Manufacturer Part Number: sta335bwsqs13tr
• Description: 2.1-channel, High-efficiency Digital Audio System With Qsound Qhd
• Manufacturer: STMicroelectronics

Description
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Description
Description
The STA335BWSQS is an integration of digital audio processing, digital amplifier control,
DDX
single-chip DDX solution comprising high-quality, high-efficiency and all digital amplification.
The STA335BWSQS is part of the SoundTerminal™ family that provides full digital audio
streaming to the speaker offering cost effectiveness, low power dissipation and sound
enrichment.
The STA335BWSQS power section consists of four independent half-bridges. These can be
configured via digital control to operate in different modes. 2.1 channels can be provided by
two half-bridges and a single full-bridge, providing up to 2 x 9 W + 1 x 20 W of power output.
Two channels can be provided by two full-bridges, providing up to 2 x 20 W of power. The IC
can also be configured as a 2.1 channels with 2 x 20 W provided by the device and external
power for DDX
Also provided in the STA335BWSQS are a full assortment of digital processing features.
This includes up to four programmable 28-bit biquads (EQ) per channel, and bass/treble
tone control. AutoModes enable a time-to-market advantage by substantially reducing the
amount of software development needed for certain functions. This includes auto volume
loudness, preset volume curves and preset EQ settings. New advanced AM
radio-interference reduction modes. The serial audio data input interface accepts all
possible formats, including the popular I
provided. This high-quality conversion from PCM audio to DDX-patented 3-state PWM
switching waveform provides over 100 dB of SNR and dynamic range.
QSound QHD
Normally, reduced audio clarity is experienced due to the digital compression of music (and
video-sound) combined with various audio processing techniques used in broadcast
transmission. This is most apparent in products such as digital televisions and audio
players. These devices are faced with a multitude of audio challenges, primarily associated
with the small speakers, that are limited in location and cabinet housing, plus economized
speaker drivers and components. As such, digital televisions and audio players are ideal
candidates to benefit from stereo soundfield enhancement in order to deliver a full
surround-like experience.
QSound QHD
soundfield enhancement technology that provides a broader stereo image width with greater
separation and depth for stereo signals and synthesizes a 3-D stereo soundfield. QHD
removes the small centralized audio sweet spot by creating a very wide stereo image with
full immersive audio. QHD
hundreds of QSound and third party hardware and software products, with total shipments
in the millions.
®
power-output stage and QSound QHD
®
®
and its industry recognized QXpander
power drive.
®
®
and its QXpander
2
S format. Three channels of DDX
®
®
technology to create a high-power
technology have been incorporated into
®
technology is a field-proven stereo
®
STA335BWSQS
processing are
®