产品概述

描述

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 R_dsONstereo 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.

所有功能
Wide supply voltage range (4.5 - 20 V)

2 x 20 W into 8 Ω at V_CC= 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

应用

LCDs

DVDs

Cradles

Digital speakers

Wireless speaker cradles
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