STA333SML Datasheet, PDF (1/17 Pages) STMicroelectronics – Automatic zero-detect mute

STA333SML
2-channel microless high-efficiency digital audio system
Sound Terminal®
Datasheet - production data
Applications
 LCDs
 DVDs
 Cradles
 Digital speakers
 Wireless-speaker cradles
CSP 5 x 6 array
Description
Features
 Wide-range supply voltage (4.5 V - 18 V)
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.
 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
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.
 2 Hz DC cut filter (input)
 96 kHz internal processing sample rate, 24-bit
precision
 Embedded thermal-overload and short-circuit
protection
Table 1. Device summary
Order code
Package
Packaging
STA333SML
STA333SMLTR
CSP 5x6 array
CSP 5x6 array
Tube
Tape and reel
March 2014
This is information on a product in full production.
DocID025317 Rev 2
1/17
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