STA333W 2-channel high-efficiency digital audio system

The STA333W is an integrated circuit comprising digital audio processing, digital amplifier control and DDX® power output stage to create a highpower, single-chip DDX® solution for all-digital amplification with high quality and high efficiency.

The STA333W power section consists of four independent half-bridges stages. These can be configured via digital control to operate in different modes. 2 channels can be provided by two full bridges, providing up to 20 W + 20 W of power.

Also provided in the STA333W are new advanced AM radio interference reduction modes. The serial audio data input interface accepts all possible formats, including the popular I2S format. Three channels of DDX® processing are provided.

The STA333W is part of the Sound Terminal™ family that provides full digital audio streaming to the speaker offering cost effectiveness, low power dissipation and sound enrichment.

技术特性

Wide supply-voltage range (4.5 V - 20 V)
2 power output configurations
- 2 channels of binary PWM (stereo mode)
- 2 channels of ternary PWM (stereo mode)
PowerSSO-36 with exposed pad down
2 channels of 24-bit DDX®
100-dB SNR and dynamic range
Selectable 32- to 192-kHz input sample rates
I²C control with selectable device address
Digital gain -80 dB to +48 dB in 0.5-dB steps
Software volume update
Individual channel and master gain/attenuation
Individual channel and master software and hardware mute
Independent channel volume bypass
Automatic zero-detect mute
Automatic invalid input detect mute
2-channel I2S input data Interface
Selectable clock input ratio
Input channel mapping
Automatic volume control for limiting maximum power
96-kHz internal processing sample rate, 24-bit precision
Advanced AM interference frequency switching and noise suppression modes
Thermal-overload and short-circuit protection embedded
Video application: 576 * fS input mode support

功能框图

STA333W 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
STA333W	Active	1.4	1000	PowerSO 36	Tube		STA333W

DATASHEET

下载	描述	版本	大小
STA333W	DS4373: 2.1-channel high-efficiency digital audio system	5	683KB

APPLICATION NOTES

下载	描述	版本	大小
AN3340	AN3340: Loudspeaker characterization and compensation	1	3944KB
AN3984	AN3984: IIR filter design equations for Sound Terminal® devices	1	494KB