STA382BW is the Datasheet of Sound Terminal® 2.1-channel high-efficiency digital audio system. It has wide-range supply voltage, I2C control, embedded full IC protection, 1 Vrms stereo analog input, I2S interface, fixed output PWM frequency, embedded RMS meter, two analog outputs, embedded negative charge pump, full capless output configuration.
The STA382BW is a 2.1-channel high-efficiency digital audio system designed for wide-range supply voltages from 4.5 V to 26 V. It supports three output power stage configurations, including 2.0 mode with L/R full bridges and 2.1 mode with a subwoofer full bridge or PWM output for an external amplifier. The device offers driving load capabilities of 2x20 W into 8 Ω in ternary modulation mode.
| Supply voltage (operating) | 4.5 V to 26 V |
|---|---|
| Supply voltage (absolute maximum) | 30 V |
| Analog input | 1 Vrms stereo |
| Sampling rate range | 32 kHz ~ 192 kHz |
| Output power (2.0 mode) | 2x20 W into 8 Ω |
| Output power (2.1 mode) | 2x9 W into 4 Ω + 1x 20 W into 8 Ω |
| Headphone output power | 40 mW into 32 Ω |
| Line output capability | 2Vrms |
| Dynamic range | 100 dB |
| Package | VQFN48 (7 x 7 mm) |
The operating supply voltage range is 4.5 V to 26 V.
The device supports sampling rates from 32 kHz to 192 kHz.
In 2.0 mode, it provides 2x20 W into 8 Ω in ternary modulation.
Yes, it includes embedded full IC protection such as manufacturing short-circuit protection, thermal protection, overcurrent protection, and undervoltage protection.