This is information on a product in full production.
March 2014 DocID025317 Rev 2 1/17
STA333SML
2-channel microless high-efficiency digital audio system
Sound Terminal®
Datasheet - production data
Features
Wide-range supply voltage (4.5 V - 18 V)
2 channels of ternary PWM (stereo mode)
2 channels of 24-bit FFX
TM
100 dB SNR and dynamic range
Digital gain +24dB
Sample rates (fs) from 32 to 48 kHz
Fixed MCLK at 256 x fs
Automatic zero-detect mute
Automatic invalid input detect mute
Short-circuit detection at startup (Out-V
CC
,
Out-Gnd, Out 1b-Out 2a)
2-channel I²S input data interface
2 Hz DC cut filter (input)
96 kHz internal processing sample rate, 24-bit
precision
Embedded thermal-overload and short-circuit
protection
Applications
LCDs
DVDs
Cradles
Digital speakers
Wireless-speaker cradles
Description
The STA333SML is an integrated circuit
comprising digital audio processing, digital
amplifier control and an FFX power output stage
to create a high-power, single-chip FFX solution
for all-digital amplification with high quality and
high efficiency.
The STA333SML power section consists of four
independent half-bridge stages. Two channels
can be provided by two full bridges, providing up
to 10 W + 10 W of power.
Also featured in the STA333SML are new
advanced modes for AM radio interference
reduction. The serial audio data input interface
accepts the popular I²S format. Two channels of
FFX
TM
processing are provided.
The STA333SML 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.
Table 1. Device summary
Order code Package Packaging
STA333SML CSP 5x6 array Tube
STA333SMLTR CSP 5x6 array Tape and reel
www.st.com
