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STA350B, STA350BW-I2S 36W*2立体声数字音频功放
2.1-channel high-efficiency digital audio system
Sound Terminal®Datasheet - production dataFeatures• Wide-range supply voltage
– 5 V to 26 V (operating range)
– 30 V (absolute maximum rating)
• Four power output configurations
– 2 channels of ternary PWM (stereo mode)
(2 x 50 W into 6 Ω at 25 V)
– 3 channels - left, right using binary and LFE
using ternary PWM (2.1 mode) (2 x 18 W +
1 x 40 W into 2 x 4 Ω, 1 x 8 Ω at 25 V)
– 2 channels of ternary PWM (2 x 50 W) +
stereo lineout ternary
– 1 channel of ternary PWM as mono-BTL
(1 x 90 W into 3 Ω at 24.5 V)• FFX™ 100 dB SNR and dynamic range• Selectable 32 to 192 kHz input sample rates• I2C control with selectable device address• Digital gain/attenuation +42 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 independent
limiters/compressors
• 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 nighttime listening mode• Individual channel and master soft/hard mute• Independent channel volume and DSP bypass• Automatic zero-detect mute• Automatic invalid input-detect mute• I2S input data interface• Input and output channel mapping• Up to 8 user-programmable biquads per
channel• 3 coefficient banks for EQ presets storing with
fast recall via I2C interface• Extended coefficient dynamic up to -4..4 for
easy implementation of high shelf filters• Bass/treble tones and de-emphasis control• Selectable high-pass filter for DC blocking• Advanced AM interference frequency
switching and noise suppression modes• Selectable high or low bandwidth
noise-shaping topologies• Selectable clock input ratio• 96 kHz internal processing sample rate with
quantization error noise shaping for very low
cutoff frequency filters• Thermal overload and short-circuit protection
embedded• Video apps: 576 x Fs input mode supported• Fully compatible with
