ST STA369BWSTR

STA369BWSTR 일반적인 설명

The STA369BWS is a cutting-edge product that combines digital audio processing, amplifier controls, and power output capabilities in a compact single-chip FFX digital amplifier. With three channels of FFX processing, this integrated solution offers high-quality sound output and exceptional efficiency. The device is part of the Sound Terminal® family, known for its cost effectiveness, low power consumption, and sound enhancement features. Featuring four independent half-bridges in the power section, the STA369BWS can be configured in various modes to support different speaker setups, such as 2.1 channels or dual full-bridge configurations

특징

• Wide-range supply voltage, 4.5 V to 21.5 V
• Three power output configurations:
  • 2 channels of ternary PWM (2 x 20 W into 8 Ω at 18 V) + PWM output
  • 2 channels of ternary PWM (2 x 20 W into 8 Ω at 18 V) + ternary stereo line-out
  • 2.1 channels of binary PWM (left, right, LFE) (2 x 9 W into 4 Ω +1 x 20 W into 8 Ω at 18 V)
• FFX with 100-dB SNR and dynamic range
• Scalable FFX modulation index (up to 100%)
• Selectable 32- to 192-kHz input sample rates
• I²C control with selectable device address
• Digital gain/attenuation +48 dB to -80 dB with 0.125-dB/step resolution
• Soft volume update with programmable ratio
• Individual channel and master gain/attenuation
• Two independent DRCs configurable as a dual-band anti-clipper (B²DRC) or as independent limiters/compressors with optional global DRC capability
• EQ-DRC for DRC based on filtered signals
• Dedicated LFE processing for bass boosting with 0.125-dB/step resolution
• Audio presets:
  • 15 preset crossover filters
  • 5 preset anti-clipping modes
  • Preset night-time listening mode
• Individual channel soft/hard mute
• Independent channel volume and DSP bypass
• I²S input data interface
• Input and output channel mapping
• Automatic invalid input-detect mute
• Up to 8 user-programmable biquads/channel
• Three coefficients banks for EQ presets storing with fast recall via I²C interface
• Extended filter dynamics +4/-4 for better sound shaping and easier filter implementation
• Bass/treble tones and de-emphasis control
• Selectable high-pass filter for DC blocking
• Advanced AM interference frequency switching and noise suppression modes
• F3X™ advanced PWM modulation scheme for carrier suppression (headphone or line output)
• Selectable high- or low-bandwidth noise-

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