Overview
The STA369BWS is a digital audio system-on-chip (SoC) developed by STMicroelectronics. It is designed to provide high-quality audio processing and amplification, particularly in automotive audio systems. This chip integrates digital audio processing, digital amplifier control, and a power output stage, making it a comprehensive solution for various audio applications. The STA369BWS offers advanced features such as digital input processing, integrated diagnostic functions, and low power consumption, ensuring reliable and high-performance audio output.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | PowerSSO-36 EPD (Exposed Pad Down) |
| Supply Voltage | 4.5 V to 21.5 V |
| Power Output 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) |
| Input Sampling Rates | Selectable 32 to 192 kHz |
| Digital Gain/Attenuation | +48 dB to -80 dB with 0.125 dB/step resolution |
| SNR and Dynamic Range | FFX with 100 dB SNR and dynamic range |
| Protection Features | Thermal overload and short-circuit protection embedded |
| Interface | I2C control with selectable device address, I2S input data interface |
Key Features
- Advanced digital audio processing with up to 8 programmable biquads per channel
- Integrated 2-band parametric equalizer and 3D sound enhancement
- Low power consumption
- Thermal and overcurrent protection
- Dedicated LFE processing for bass boosting with 0.125 dB/step resolution
- Audio presets including crossover filters, anti-clipping modes, and night-time listening mode
- Individual channel soft/hard mute and independent channel volume and DSP bypass
- Advanced AM interference frequency switching and noise suppression modes
- Selectable high- or low-bandwidth noise-shaping topologies
Applications
- Automotive audio systems
- Soundbars
- Portable speakers
- Home theater systems
- Gaming headsets
- Docking stations and smart speakers
Q & A
- What is the STA369BWS chip primarily used for?
The STA369BWS chip is primarily used for high-quality audio processing and amplification, especially in automotive audio systems.
- What are the power output configurations of the STA369BWS?
The STA369BWS offers three power output configurations: 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 supply voltage range for the STA369BWS?
The supply voltage range for the STA369BWS is 4.5 V to 21.5 V.
- Does the STA369BWS support multiple audio formats?
Yes, the STA369BWS supports multiple digital audio formats, including PCM and I2S.
- What protection features are embedded in the STA369BWS?
The STA369BWS includes thermal overload and short-circuit protection.
- Can the STA369BWS be used in non-automotive applications?
Yes, the STA369BWS can be used in various applications such as soundbars, portable speakers, home theater systems, and gaming headsets.
- What is the significance of FFX technology in the STA369BWS?
FFX (Fully Flexible Amplification) technology provides high-efficiency, all-digital amplification with a high SNR and dynamic range.
- How does the STA369BWS handle low-frequency quantization noise?
The STA369BWS uses special digital signal processing techniques to manage low-frequency quantization noise, especially in cases of very low frequency cutoff filter thresholds.
- Does the STA369BWS support audio presets?
Yes, the STA369BWS includes audio presets such as crossover filters, anti-clipping modes, and night-time listening mode.
- What is the package type of the STA369BWS?
The STA369BWS is packaged in a PowerSSO-36 EPD (Exposed Pad Down) form.
