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STA382BWSTR 数据表(PDF) 1 Page - STMicroelectronics |
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STA382BWSTR 数据表(HTML) 1 Page - STMicroelectronics |
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1 / 172 page  This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. April 2012 Doc ID 022784 Rev 1 1/172 1 STA382BWS Sound Terminal® 2.1-channel high-efficiency digital audio system Datasheet − preliminary data Features ■ Wide-range supply voltage – 4.5 V to 25.5 V (operating range) – 27 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) – Thermal protection – Overcurrent protection – Undervoltage protection ■ 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 ■ FFXTM 100 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 F3XTM analog output ■ 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 ■ STSpeakerSafeTM protection circuitry –Pre- and post-processing DC blocking filters – Checksum engine for filter coefficients – PWM fault self-diagnosis ■ STCompressorTM dual-band DRC Table 1. Device summary Order code Package Packing STA382BWS VQFN48 Tray STA382BWSTR VQFN48 Tape and Reel VQFN48 (7 x 7 mm) www.st.com Obsolete Product(s) - Obsolete Product(s) |
类似零件编号 - STA382BWSTR |
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类似说明 - STA382BWSTR |
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