STA333ML Sound Terminal 2-channel microless high-efficiency digital audio system

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.

技术特性

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 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
Applications
- LCDs
- DVDs
- Cradles
- Digital speakers
- Wireless speaker cradles

功能框图

STA333ML 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
STA333MLJ13TR	Active			PowerSSO 36	Tape And Reel	0 °C-70 °C	STA333MLJ13TR
STA333MLJ	Active			PowerSSO 36	Tube	0 °C-70 °C	STA333MLJ
STA333ML	Active	1.3	1000	PowerSSO 36	Tube	0 °C-70 °C	STA333ML
STA333ML13TR	Active	1.3	1000	PowerSSO 36	Tape And Reel	0 °C-70 °C	STA333ML13TR

DATASHEET

下载	描述	版本	大小
STA333ML	DS5094: 2-channel microless high-efficiency digital audio system Sound Terminal®	6	748KB

APPLICATION NOTES

下载	描述	版本	大小
AN2479	AN2479: STA333ML demo board application note	1	2911KB
AN3340	AN3340: Loudspeaker characterization and compensation	1	3944KB
AN3984	AN3984: IIR filter design equations for Sound Terminal® devices	1	494KB