May 2008

Rev 2

1/14

14

STA333ML

Sound Terminal™

2-channel microless high-efficiency digital audio system

Features

ternary PWM

precision

embedded

Applications

Description

STA333ML is a single die embedding digital audio

amplification, capable of operating without the aid

of an external micro controller.

The STA333ML is part of the Sound Terminal™

family that provides full digital audio streaming to

the speaker offering cost effectiveness, low

energy dissipation and sound enrichment.

digital class-D ternary modulator together with an

It 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 the use in low-cost

applications (cradle, digital speakers, audio

terminals) where no micro controller is needed.

The serial audio data interface accepts 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 exported to an external

pin (INT_LINE) for specific requirements.

PowerSSO-36 slug down

Table 1.

Device summary

Order code

Package

Packaging

STA333ML

PowerSSO-36 (slug down)

Tube

STA333ML13TR

PowerSSO-36 (slug down)

Tape and reel

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