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产品名称：STA381BW
产品封装：QFN-48
产品品牌：STMicroelectronics
库 存：查看
电 话：0755-83035811
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产品介绍
STA381BW
- Wide-range supply voltage
- 4.5 V to 26 V (operating range)
- 30 V (absolute maximum rating)
- I2C control with selectable device address
- Embedded full IC protection
- Manufacturing short-circuit protection (out vs. gnd, out vs. vcc, out vs. out)
- 1 Vrms stereo analog input
- I2S interface, sampling rate 32 kHz ~ 192 kHz, with internal sampling frequency converter for fixed processing frequency
- Three output power stage configurations
- 2.0 mode, L/R full bridges
- 2.1 mode, L/R two half-bridges, subwoofer full bridge
- 2.1 mode, L/R full bridges, PWM output for external subwoofer amplifier
- Driving load capabilities
- 2 x 20 W into 8 Ω ternary modulation
- 2 x 9 W into 4 Ω + 1 x 20 W into 8 Ω
- FFXTM100 dB dynamic range
- Fixed output PWM frequency at any input sampling frequency
- Embedded RMS meter for measuring real-time loudness
- Two analog outputs
- Selectable headphone / line out driver with adjustable gain via external resistors
- New fully programmable noise-gating function
- Headphone
- Embedded negative charge pump
- Full capless output configuration
- Driving load capabilities: 40 mW into 32 Ω
- Line out
- 2 Vrms line output capability
- Up to 12 user-programmable biquads with noise-shaping technology
- Direct access to coefficients through I2C shadowing mechanism
- Fixed (88.2 kHz / 96 kHz) internal processing sampling rate
- Two independent DRCs configurable as a dual-band anticlipper or independent limiters/compressors (B2DRC)
- Digital gain/att +48 dB to -80 dB with 0.125 dB/step resolution
- Independent (fade-in, fade-out) soft volume update with programmable rate 48 ~ 1.5 dB/ms
- Bass/treble tones control
- Audio presets: 15 crossover filters, 5 anticlipping modes, nighttime listening mode
- STSpeakerSafeTMprotection circuitry
- Pre- and post-processing DC blocking filters
- Checksum engine for filter coefficients
- STCompressorTMdual-band DRC
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