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 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 (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.
●Key Features
● Wide supply voltage range (4.5 - 20 V)
● 2 x 20 W into 8 Ω 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 I2 S 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
● Applications
● LCDs
● DVDs
● Cradles
● Digital speakers
● Wireless speaker cradles
