STA333W View Datasheet(PDF) - STMicroelectronics
Part Name
Description
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STA333W Datasheet PDF : 49 Pages
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STA333W
2-channel high-efficiency digital audio system
Sound Terminal™
Features
Wide supply-voltage range (4.5 V - 20 V)
2 power output configurations
– 2 channels of binary PWM (stereo mode)
– 2 channels of ternary PWM (stereo mode)
PowerSSO-36 package
with exposed
pad down (EPD)
PowerSSO-36 with exposed pad down
2 channels of 24-bit DDX®
100-dB SNR and dynamic range
Selectable 32- to 192-kHz input sample rates
I2C control with selectable device address
Digital gain -80 dB to +48 dB in 0.5-dB steps
Software volume update
Applications
LCD
DVD
Cradle
Digital speaker
Wireless-speaker cradle
Individual channel and master gain/attenuation
Individual channel and master software and
hardware mute
Independent channel volume bypass
Automatic zero-detect mute
Automatic invalid input detect mute
2-channel I2S input data Interface
Selectable clock input ratio
Input channel mapping
Automatic volume control for limiting maximum
power
96-kHz internal processing sample rate, 24-bit
precision
Advanced AM interference frequency
switching and noise suppression modes
Thermal-overload and short-circuit protection
embedded
Video application: 576 * fS input mode support
Table 1. Device summary
Description
The STA333W is an integrated circuit comprising
digital audio processing, digital amplifier control
and DDX® power output stage to create a high-
power, single-chip DDX® solution for all-digital
amplification with high quality and high efficiency.
The STA333W power section consists of four
independent half-bridges stages. These can be
configured via digital control to operate in different
modes. 2 channels can be provided by two full
bridges, providing up to 20 W + 20 W of power.
Also provided in the STA333W are new advanced
AM radio interference reduction modes. The serial
audio data input interface accepts all possible
formats, including the popular I2S format. Three
channels of DDX® processing are provided.
The STA333W is part of the Sound Terminal™
family that provides full digital audio streaming to
the speaker offering cost effectiveness, low power
dissipation and sound enrichment.
Order code
Package
Packaging
STA333W
STA333W13TR
PowerSSO-36 EPD
PowerSSO-36 EPD
Tube
Tape and reel
January 2010
Doc ID 13365 Rev 2
1/49
www.st.com
49
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