STA335ML中文资料2-channel microless high-efficiency digital audio system Sound Terminal数据手册ST规格书

描述 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 RdsONstereo 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.

特性 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