|
STA333W_10 Datasheet, PDF (1/49 Pages) STMicroelectronics – 2-channel high-efficiency digital audio system Sound Terminal™ | |||
|
STA333W
2-channel high-efficiency digital audio system
Sound Terminalâ¢
Features
 Wide supply-voltage range (4.5 V - 20 V)
 2 power output configurations
â 2 channels of binary PWM (stereo mode)
â 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 Terminalâ¢
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
|
▷ |