Multichannel Digital Audio Processor with FFX 56-Pin VFQFPN T/R

The STA311B 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. In the 5.1 application the additional 2 channels can be used for audio line-out or headphone drive.

8 channels of 24-bit FFX^™

>100 dB SNR and dynamic range

Selectable 32 kHz-192 kHz input sampling rates

6 channels of DSD/SACD

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