STA381BWS
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
