| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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1,000 pcs
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1000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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840 pcs
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840 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Analog Input | |
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The STA381BW from STMicroelectronics is a Sound Terminal® 2.1-channel high-efficiency digital audio system designed for integrated processing applications. It operates within a wide supply voltage range of 4.5 V to 26 V, with an absolute maximum rating of 30 V. The device supports I2C control with a selectable address and an I2S interface for digital audio input, handling sampling rates from 32 kHz to 192 kHz.
This audio processor offers flexible output configurations, including 2.0 mode with L/R full bridges and 2.1 mode with L/R half-bridges and a subwoofer full bridge, or L/R full bridges with PWM output for an external subwoofer amplifier. It boasts driving load capabilities of 2 x 20 W into 8 Ω or a combination of 2 x 9 W into 4 Ω plus 1 x 20 W into 8 Ω. The STA381BW includes embedded IC protection features such as short-circuit, thermal, overcurrent, and undervoltage protection.
Key features include a 100 dB dynamic range, an embedded RMS meter for loudness measurement, and two analog outputs: a selectable headphone/line out driver and a new F3X™ analog output. It supports up to 12 user-programmable biquads, direct coefficient access via I2C shadowing, and two independent DRCs for anti-clipping or limiting functions. The device offers digital gain/attenuation from +48 dB to -80 dB with 0.125 dB/step resolution and independent soft volume updates. Bass and treble tone controls, along with 15 crossover filters and 5 anti-clipping modes, are also available.
The STA381BW is supplied in a 48-VQFN (7x7 mm) package suitable for surface mounting. It operates within an ambient temperature range of 0°C to 70°C. The device is designed for applications such as pre-amplifiers, offering a robust solution for audio processing.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.22 | $2.22 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 4.5 V to 26 V.
The STA381BW is available in a 48-VQFN (7x7 mm) exposed pad package suitable for surface mounting.
The operating temperature range is 0°C to 70°C (TA).
Yes, the STA381BW is RoHS3 Compliant.
It can deliver 2 x 20 W into 8 Ω or a combination of 2 x 9 W into 4 Ω + 1 x 20 W into 8 Ω.
The STA381BW supports I2C control and an I2S interface.