Overview
The STA369BWS, produced by STMicroelectronics, is an integrated digital audio system that combines digital audio processing, digital amplifier controls, and a power output stage. This high-power single-chip FFX digital amplifier is part of the Sound Terminal® family, offering high-quality and high-efficiency audio solutions. It supports various power output configurations, including 2.1-channel and dual-channel setups, and features advanced digital signal processing capabilities. The device is designed for cost-effectiveness, low power dissipation, and sound enrichment, making it suitable for a range of audio applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 4.5 V to 21.5 V |
| Output Power Configurations | 2 channels of ternary PWM (2 x 20 W into 8 Ω at 18 V) + PWM output 2 channels of ternary PWM (2 x 20 W into 8 Ω at 18 V) + ternary stereo line-out 2.1 channels of binary PWM (left, right, LFE) (2 x 9 W into 4 Ω + 1 x 20 W into 8 Ω at 18 V) |
| SNR and Dynamic Range | 100 dB |
| Input Sample Rates | Selectable 32- to 192-kHz |
| Digital Gain/Attenuation | +48 dB to -80 dB with 0.125-dB/step resolution |
| Audio Interface | I²S input data interface |
| Operating Temperature | -40°C to 150°C |
| Package | PowerSSO 36 |
Key Features
- FFX with 100-dB SNR and dynamic range
- Scalable FFX modulation index (up to 100%)
- I²C control with selectable device address
- Digital gain/attenuation +48 dB to -80 dB with 0.125-dB/step resolution
- Soft volume update with programmable ratio
- Individual channel and master gain/attenuation
- Up to 8 user-programmable biquads per channel
- Dedicated LFE processing for bass boosting with 0.125-dB/step resolution
- Advanced AM interference frequency switching and noise suppression modes
- F3X™ advanced PWM modulation scheme for carrier suppression
- Thermal overload and short-circuit protection embedded
Applications
The STA369BWS is suitable for various audio applications, including home audio systems, automotive audio systems, and consumer electronics. Its high-efficiency and high-quality audio processing make it ideal for systems requiring clear and powerful sound output. Additionally, its advanced digital signal processing features and multiple output configurations make it versatile for different use cases.
Q & A
- What is the STA369BWS?
The STA369BWS is an integrated digital audio system from STMicroelectronics that combines digital audio processing, digital amplifier controls, and a power output stage. - What are the different power output configurations of the STA369BWS?
The device supports 2 channels of ternary PWM, 2 channels of ternary PWM with ternary stereo line-out, and 2.1 channels of binary PWM. - What is the SNR and dynamic range of the STA369BWS?
The STA369BWS offers 100 dB of SNR and dynamic range. - What input sample rates are supported by the STA369BWS?
The device supports selectable 32- to 192-kHz input sample rates. - What is the range of digital gain/attenuation for the STA369BWS?
The digital gain/attenuation range is +48 dB to -80 dB with 0.125-dB/step resolution. - Does the STA369BWS support I²C control?
Yes, it supports I²C control with a selectable device address. - What is the F3X™ modulation scheme in the STA369BWS?
The F3X™ modulation scheme is an advanced PWM modulation scheme designed for carrier suppression, particularly useful for headphone or line output applications. - Does the STA369BWS have thermal protection?
Yes, it has embedded thermal overload and short-circuit protection. - What is the operating temperature range of the STA369BWS?
The operating temperature range is -40°C to 150°C. - What package type is the STA369BWS available in?
The device is available in the PowerSSO 36 package.
