Overview
The STA339BWTR, produced by STMicroelectronics, is an integrated solution for digital audio processing, digital amplifier control, and FFX-power output stage. This 2.1-channel high-efficiency digital audio system is designed to provide high-quality, high-efficiency all-digital amplification. It leverages STMicroelectronics' proprietary FFX (Fully Flexible Amplification) technology, enhancing audio performance and efficiency.
Key Specifications
| Parameter | Specification |
|---|---|
| Voltage Supply Range | 5 V to 26 V (operating range), 30 V (absolute maximum rating) |
| Power Output Configurations | 2 channels of ternary PWM (stereo mode), 3 channels (2.1 mode), 2 channels of ternary PWM + stereo lineout ternary |
| Power Output | 2 x 20 W into 8 Ω at 18 V (stereo mode), 2 x 9 W + 1 x 20 W into 2 x 4 Ω, 1 x 8 Ω at 18 V (2.1 mode) |
| Input Sample Rates | Selectable 32 to 192 kHz |
| Signal-to-Noise Ratio (SNR) | 100 dB |
| Digital Gain/Attenuation | +48 dB to -80 dB with 0.5 dB/step resolution |
| I2C Control | Selectable device address |
| Thermal Protection | Thermal overload and short-circuit protection embedded |
| Package | PowerSSO-36 (slug down) |
Key Features
- FFX (Fully Flexible Amplification) processor for high-efficiency digital amplification
- 24-bit audio processing with 100 dB SNR and dynamic range
- Selectable input sample rates from 32 kHz to 192 kHz
- Digital gain/attenuation from +48 dB to -80 dB with 0.5 dB/step resolution
- I2C control with selectable device address
- Individual channel and master gain/attenuation, soft/hard mute, and DSP bypass
- Dedicated LFE processing for bass boosting with 0.5 dB/step resolution
- Up to 8 user-programmable biquads per channel with 28-bit resolution
- Advanced AM interference frequency switching and noise suppression modes
- Thermal overload and short-circuit protection
Applications
- Home audio systems
- Automotive audio systems
- Portable audio devices
- Consumer electronics requiring high-quality audio amplification
- Professional audio equipment
Q & A
- What is the voltage supply range for the STA339BWTR?
The voltage supply range is from 5 V to 26 V (operating range) and up to 30 V (absolute maximum rating).
- What are the power output configurations of the STA339BWTR?
The device supports 2 channels of ternary PWM (stereo mode), 3 channels (2.1 mode), and 2 channels of ternary PWM + stereo lineout ternary.
- What is the signal-to-noise ratio (SNR) of the STA339BWTR?
The SNR is 100 dB.
- Does the STA339BWTR support I2C control?
- What kind of thermal protection does the STA339BWTR have?
- What is the package type of the STA339BWTR?
- Can the STA339BWTR be used in automotive audio systems?
- Does the STA339BWTR support user-programmable biquads?
- What is the purpose of the FFX processor in the STA339BWTR?
- Can the STA339BWTR be used in home audio systems?
