STA335MLJ 查看數據表（PDF） - STMicroelectronics

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STA335MLJ

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

STMicroelectronics 

STA335ML

2-channel microless high-efficiency digital audio system

Sound Terminal®

Features

■ Wide supply voltage range (5.0 V to 26 V)

■ PowerSSO-36 exposed pad down 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

■ Thermal overload and short-circuit protection

embedded

■ Filterless configuration capability

Applications

■ LCDs

■ DVDs

■ Cradles

■ Digital speakers

■ Wireless speaker cradles

PowerSSO-36

with exposed

pad down (EPD)

Description

The STA335ML is a single die embedding digital

audio processing and high-efficiency power

amplification, capable of operating without the aid

of an external microcontroller.

The STA335ML 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 STA335ML 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 (cradle, digital speakers, audio

terminals) where no microcontroller is needed.

The serial audio data interface accepts the

universally used I2S format. Basic features, such

as oversampling clock, gain, I2S format can be set

using a minimal number of selection pins.

The STA335ML 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.

Table 1. Device summary

Order code

STA335MLJ

STA335MLJ13TR

Package

PowerSSO-36 EPD

PowerSSO-36 EPD

Packaging

Tube

Tape and reel

July 2011

Doc ID 17638 Rev 4

1/20

www.st.com

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