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

Features

 Wide-range supply voltage (4.5 V - 18 V)

 2 channels of ternary PWM (stereo mode)

 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

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

family that provides full digital audio streaming to

the speaker, offering cost effectiveness, low-

power dissipation and sound enrichment.

CSP 5 x 6 array

Table 1. Device summary

Order code

Package

Packaging

STA333SML

CSP 5x6 array

Tube

STA333SMLTR

CSP 5x6 array

Tape and reel

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