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STA309A Datasheet(PDF) 1 Page - STMicroelectronics |
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STA309A Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 67 page  September 2007 Rev 1 1/67 67 STA309A Multi-channel digital audio processor with DDX® Features ! 8 channels of 24-bit DDX® ! >100 dB SNR and dynamic range ! Selectable 32 kHz - 192 kHz input sample rates ! 6 channels of DSD/SACD input ! Digital gain/attenuation +58 dB to -100 dB in 0.5 dB steps ! 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 invalid input detect mute ! Advanced PopFree operation ! 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/DDX® channel ! DC blocking selectable high-pass filter ! Selectable per-channel DDX® damped ternary or binary PWM output ! Max power correction for lower full-power THD ! Variable per channel DDX® output delay control ! 192 kHz internal processing sample rate, 24-bit to 36-bit precision Description The STA309A is a single chip solution for digital audio processing and control in multi-channel applications. It provides output capabilities for DDX® (direct digital amplification). In conjunction with a DDX® 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. In 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 STA309A can deliver more than 1 W. Table 1. Device summary Order code Package STA309A TQFP64 TQFP64 www.st.com |
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