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STA309B Datasheet(PDF) 1 Page - STMicroelectronics |
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STA309B Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 66 page  Preliminary data January 2012 Doc ID 022570 Rev 2 1/66 66 STA309B Multichannel digital audio processor with FFX® Features ■ 8 channels of 24-bit FFX® ■ >100 dB SNR and dynamic range ■ Selectable 32 kH-192 kHz input sampling rates ■ 6 channels of DSD/SACD and PDM input ■ Digital gain/attenuation +58 dB to -100 dB in 0.5 dB steps ■ Advanced “pop-free” operation ■ Digital “pop-free” operation for single-ended mode ■ Soft volume update ■ Individual channel and master gain/attenuation plus channel trim (-10 dB to +10 dB) ■ Up to 10 independent 32-bit user- programmable biquads (EQ) per channel ■ Bass/treble tone control ■ Pre- and post-EQ full 8-channel input mix on all 8 channels ■ Dual independent limiters/compressors ■ Dynamic range compression or anti-clipping modes ■ AutoModes – 5-band graphic EQ – 32 preset EQ curves (rock, jazz, pop, etc.) – Automatic volume controlled loudness – 5.1 to 2-channel downmix – Simultaneous 5.1- and 2-channel downmix outputs – 3 preset volume curves – 2 preset anti-clipping modes – Preset movie nighttime listening mode – Preset TV channel/commercial AGC mode – 5.1, 2.1 bass management configurations – AM frequency automatic output PWM frequency shifting – 8 preset crossover filters ■ Individual channel and master soft/hard mute ■ Automatic zero-detect and invalid input mute ■ Automatic amplifier power-down on clock loss ■ Advanced AM interference frequency switching and noise suppression modes ■ I2S output channel mapping function ■ Independent channel volume and DSP bypass ■ Channel mapping of any input to any processing/FFX channel ■ Selectable per-channel FFX damped ternary or binary PWM output ■ Max power correction for lower full-power THD ■ Variable per-channel FFX output delay control ■ 192 kHz internal processing sampling rate, 24-bit to 36-bit precision Description The STA309B is a single-chip solution for digital audio processing and control in multichannel applications and provides output capabilities for FFX (full flexible amplification). In conjunction with an FFX power device, it provides high-quality, high-efficiency, all-digital amplification. The device is extremely versatile, allowing for input of most digital formats including 6.1/7.1-channel and 192 kHz, 24-bit DVD-audio, DSD/SACD and PDM for MEMS microphone inputs. In the 5.1 application, the additional 2 channels can be used for audio line-out or headphone drive. In speaker mode, with 8 channel outputs in parallel, the STA309B can deliver 1 W (maximum). Table 1. Device summary Order code Package Packaging STA309B VFQFPN56 Tube STA309BTR VFQFPN56 Tape and reel VFQFPN-56 www.st.com |
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