Overview
The STA350BW, produced by STMicroelectronics, is a highly integrated 2.1-channel high-efficiency digital audio system. It combines digital audio processing, digital amplifier control, and an FFX-power output stage, making it a comprehensive solution for high-quality and high-efficiency all-digital amplification. This component is part of the Sound Terminal® family, known for providing full digital audio streaming to speakers while offering cost effectiveness, low power dissipation, and enhanced sound quality.
Key Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 5 V to 26 V (operating range), 30 V (absolute maximum rating) |
| Power Output Configurations | - 2 channels of ternary PWM (stereo mode): 2 x 50 W into 6 Ω at 25 V - 3 channels (2.1 mode): 2 x 18 W + 1 x 40 W into 2 x 4 Ω, 1 x 8 Ω at 25 V - 2 channels of ternary PWM + stereo lineout ternary - 1 channel of ternary PWM as mono-BTL: 1 x 90 W into 3 Ω at 24.5 V |
| SNR and Dynamic Range | FFX™ 100 dB SNR and dynamic range |
| Input Sample Rates | Selectable 32 to 192 kHz |
| Control Interface | I2C control with selectable device address |
| Gain/Attenuation | Digital gain/attenuation +42 dB to -80 dB with 0.125 dB/step resolution |
| Operating Current | 52 mA |
| Package | PowerSSO-36 |
| Operating Temperature | Industrial grade, specific temperature range not specified in the sources provided |
Key Features
- Wide-range supply voltage: 5 V to 26 V (operating range), 30 V (absolute maximum rating)
- Four power output configurations, including stereo, 2.1 channels, and mono-BTL modes
- FFX™ 100 dB SNR and dynamic range
- Selectable 32 to 192 kHz input sample rates
- I2C control with selectable device address
- Digital gain/attenuation +42 dB to -80 dB with 0.125 dB/step resolution
- Individual channel and master gain/attenuation, soft/hard mute, and DSP bypass
- Two independent DRCs configurable as a dual-band anti-clipper or independent limiters/compressors
- Dedicated LFE processing for bass boosting with 0.125 dB/step resolution
- Audio presets including 15 preset crossover filters, 5 preset anti-clipping modes, and preset nighttime listening mode
- Up to 8 user-programmable biquads per channel and 3 coefficient banks for EQ presets
- Advanced AM interference frequency switching and noise suppression modes
- Thermal overload and short-circuit protection embedded
Applications
- Home audio systems: Ideal for home theaters and sound systems requiring high-quality audio output
- Personal electronics: Suitable for portable audio devices, speakers, and other consumer electronics
- Industrial applications: Can be used in various industrial settings where high-quality audio is required
- Automotive systems: Applicable in car audio systems for enhanced sound quality and efficiency
Q & A
- What is the operating supply voltage range of the STA350BW?
The operating supply voltage range is 5 V to 26 V, with an absolute maximum rating of 30 V
- What are the different power output configurations of the STA350BW?
The STA350BW can be configured in several modes, including 2 channels of ternary PWM (stereo mode), 3 channels (2.1 mode), 2 channels of ternary PWM with stereo lineout, and 1 channel of ternary PWM as mono-BTL
- What is the SNR and dynamic range of the STA350BW?
The STA350BW features FFX™ 100 dB SNR and dynamic range
- What input sample rates are supported by the STA350BW?
The STA350BW supports selectable 32 to 192 kHz input sample rates
- What control interface does the STA350BW use?
The STA350BW uses I2C control with a selectable device address
- What is the digital gain/attenuation range of the STA350BW?
The digital gain/attenuation range is +42 dB to -80 dB with 0.125 dB/step resolution
- Does the STA350BW have built-in protection features?
Yes, the STA350BW includes thermal overload and short-circuit protection
- What is the package type of the STA350BW?
The STA350BW is packaged in a PowerSSO-36 package
- Can the STA350BW be used in industrial applications?
Yes, the STA350BW is suitable for industrial applications due to its robust features and industrial-grade operating conditions
- What are some of the audio processing features of the STA350BW?
The STA350BW includes features such as up to 8 user-programmable biquads per channel, dedicated LFE processing, and various audio presets
