STA333ML Ver la hoja de datos (PDF) - STMicroelectronics

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Fabricante

STA333ML

2-channel microless high-efficiency digital audio system Sound Terminal ®

STMicroelectronics 

STA333ML

2-channel microless high-efficiency digital audio system Sound

Terminal ®

Datasheet - production data

 Wireless speaker cradles

Description

PowerSSO-36

with exposed pad down (EPD)

Features

 Wide supply voltage range (4.5 - 20 V)

 2 x 20 W into 8 at VCC = 18 V

 PowerSSO-36 exposed pad package

 2 channels of 24-bit DDX®

 100-dB SNR and dynamic range

 Selectable 32 kHz to 48 kHz input sample

rates

 Automatic zero-detect mute

 Automatic invalid input detect mute

 2-channel I2S input data interface

 Selectable clock input ratio (256 or 364 * fs)

 Max power correction for lower full power

 96 kHz internal processing sample rate, 24-bit

precision

 Embedded thermal overload and short-circuit

protection

 Filterless configuration option

The STA333ML is a single die embedding digital

audio processing and high-efficiency power

amplification, capable of operating without the aid

of an external microcontroller.

The STA333ML is part of the Sound Terminal®

family that provides full digital audio streaming to

the speakers and offers cost effectiveness, low

power dissipation and sound enrichment.

The STA333ML combines a unique 24-bit DDX®

digital class-D ternary modulator together with an

extremely low RdsON stereo power DMOS stage.

The latter is capable of a total output power of

2 x 20 W with outstanding performance in terms

of efficiency (>90%), THD, SNR and EMI.

The microless feature allows its use in low-cost

applications (cradles, digital speakers, audio

terminals) where no microcontroller is needed.

The serial audio data interface accepts the

universally used I2S format. Basic features, such

as the oversampling clock, gain, and I2S format,

can be set using a minimal number of selection

pins. The STA333ML is self-protected against

thermal overload, overcurrent, short-circuit and

overvoltage conditions.

The fault condition is also signalled on an external

pin (INT_LINE) for specific requirements.

Applications

 LCDs

 DVDs

 Cradles

 Digital speakers

Order code

STA333ML13TR

Table 1. Device summary

Package

PowerSSO-36 EPD

Packaging

Tape and reel

March 2019

This is information on a product in full production.

DocID13177 Rev 8

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