STA559BWQS13TR STMICROELECTRONICS [STMicroelectronics], STA559BWQS13TR Datasheet - Page 10

• Manufacturer Part Number: STA559BWQS13TR
• Description: 5-V, 2-A, 2.1-channel high-efficiency digital audio system with QSound QHD
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Description and block diagram
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Description and block diagram
Description
The STA559BWQS is an integration of digital audio processing, digital amplifier control,
DDX
single-chip DDX solution with high-quality, high-efficiency and all digital amplification.
The STA559BWQS 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 0.7 W + 1 x 3 W of power output.
2 channels can be provided by two full-bridges, providing up to 2x3W of power. The IC can
also be configured as a 2.1 channels with 2 x 3 W provided by the device and external
power for DDX
digital processing features. This includes up to 4 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, for
instance, 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
processing are 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. Also provided in the STA559BWQS are a full assortment of
®
®
and its QXpander
®
®
technology to create a high-power
technology have been incorporated into
2
S format. Three channels of DDX
®
technology is a field-proven stereo
STA559BWQS
®
®