STA311B STMicroelectronics

STA311B TM Multichannel digital audio processor with FFX Datasheet - production data 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 VFQFN-56 5.1, 2.1 bass management configurations AM frequency automatic output PWM frequency shifting 8 preset crossover filters Features Individual channel and master soft/hard mute 8 channels of 24-bit FFX Automatic zero-detect and invalid input mute >100 dB SNR and dynamic range Automatic amplifier power-down on clock loss Selectable 32 kHz-192 kHz input sampling Advanced AM interference frequency rates switching and noise suppression modes 6 channels of DSD/SACD IS output channel mapping function Digital gain/attenuation +58 dB to -100 dB in Independent channel volume and DSP bypass 0.5 dB steps Channel mapping of any input to any Advanced pop-free operation processing/FFX channel Digital pop-free operation for single-ended Selectable per-channel FFX damped ternary or mode binary PWM output Soft volume update Max power correction for lower full-power THD Individual channel and master gain/attenuation Variable per-channel FFX output delay control plus channel trim (-10 dB to +10 dB) 192 kHz internal processing sampling rate, Up to 10 independent 32-bit user- 24-bit to 36-bit precision programmable biquads (EQ) per channel Bass/treble tone control Table 1. Device summary Pre- and post-EQ full 8-channel input mix on all Order code Package Packaging 8 channels STA311B VFQFPN56 Tray Dual independent limiters/compressors STA311BTR VFQFPN56 Tape and reel Dynamic range compression or anti-clipping modes AutoModes 5-band graphic EQ October 2013 DocID024340 Rev 1 1/102 This is information on a product in full production. www.st.comContents STA311B Contents 1 Description . 5 2 Device overview 6 2.1 Block diagram . 6 2.2 Pin description 7 3 Electrical characteristics 11 3.1 Absolute maximum ratings .11 3.2 Thermal data .11 3.3 Recommended operating conditions .11 3.4 Electrical specifications 12 4 Serial audio interface . 13 4.1 Timings . 13 4.2 Serial data formats 14 4.3 Processing data paths . 15 5 IS recombination interface 16 6 Startup/shutdown pop noise removal in SE application . 17 6.1 PWM start . 17 6.2 PWM stop . 18 7 IC bus operation . 19 7.1 Communication protocol 19 7.1.1 Data transition or change 19 7.1.2 Start condition 19 7.1.3 Stop condition 19 7.1.4 Data input . 19 7.2 Device addressing 19 7.3 Write operation . 20 7.3.1 Byte write 20 7.3.2 Multi-byte write 20 2/102 DocID024340 Rev 1