ST STA369BWS 2.1-channel 40-watt high-efficiency digital audio system Sound Terminal handbook

STA369BWS is a 2.1-channel 40-watt high-efficiency digital audio system with wide-range supply voltage, three power output configurations, FFX, optional 100-dB SNR and dynamic range, optional 32- to 192-kHz input sample rates, I2C control and optional dual-band anti-clipper (B2DRC) or optional global DRC capability.


ST STA369BWS 2.1-channel 40-watt high-efficiency digital audio system Sound Terminal handbook - cover page
Brand
STMicroelectronics
Document type
Datasheet
Language
English
Pages
89
File format
PDF
File size
2.7 MB
Published
08 August, 2012
Updated
01 October, 2023
MD5 checksum
ABF87D6FA344282DCECB9AC0C5C4F16B

About this manual

The STA369BWS is a 2.1-channel 40-watt high-efficiency digital audio system designed for automotive applications. It features wide-range supply voltage support (4.5 V to 21.5 V) and offers three power output configurations, including ternary PWM and binary PWM modes.

The device includes advanced audio processing capabilities such as FFX with 100-dB SNR, selectable input sample rates up to 192-kHz, and digital gain/attenuation ranging from +48 dB to -80 dB. It supports various dynamic range control (DRC) modes, including dual-band anti-clipper and independent limiters/compressors, along with EQ presets and dedicated LFE processing.

What's inside

  • Description
  • Pin connections
  • Electrical specifications
  • Processing data paths
  • I2C bus specification
  • Register description
  • Applications

Specifications

Supply voltage range4.5 V to 21.5 V
Power output (ternary PWM)2 x 20 W into 8 Ohm at 18 V
Power output (binary PWM)2 x 9 W into 4 Ohm + 1 x 20 W into 8 Ohm
Signal-to-noise ratio100 dB
Input sample rates32 to 192 kHz
Digital gain/attenuation range+48 dB to -80 dB
Internal processing sample rate96 kHz

Frequently asked questions

What is the resolution for digital gain and attenuation?

The device provides a resolution of 0.125 dB per step.

Does the STA369BWS include built-in protection features?

Yes, it includes embedded thermal overload and short-circuit protection.

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