STA339BW Datasheet, PDF (1/77 Pages) STMicroelectronics – 2.1-channel high-efficiency digital audio system

STA339BW
2.1-channel high-efficiency digital audio system
Features
„ Wide voltage supply range
– 5 V to 26 V (operating range)
– 30 V (absolute maximum rating)
„ 3 power output configurations
– 2 channels of ternary PWM (stereo mode)
(2 x 20 W into 8 Ω at 18 V)
– 3 channels - left, right using binary and LFE
using ternary PWM (2.1 mode) (2 x 9 W +
1 x 20 W into 2 x 4 Ω, 1 x 8 Ω at 18 V)
– 2 channels of ternary PWM (2 x 20 W) +
stereo lineout ternary
„ 2.1 channels of 24-bit FFX^® 100 dB SNR and
dynamic range
„ Selectable 32 to 192 kHz input sample rates
„ I²C control with selectable device address
„ Digital gain/attenuation +48 dB to -80 dB with
0.5 dB/step resolution
„ Soft volume update with programmable ratio
„ Individual channel and master gain/attenuation
„ Two independent DRC configurable as a
dual-band anti-clipper (B²DRC) or as
independent limiters/compressors
„ EQ-DRC for DRC based on filtered signals
„ Dedicated LFE processing for bass boosting
with 0.5 dB/step resolution
„ Audio presets:
– 15 preset crossover filters
– 5 preset anti-clipping modes
– Preset night-time listening mode
„ Individual channel and master soft/hard mute
PowerSSO-36 (slug down)
„ Independent channel volume and DSP bypass
„ Automatic zero-detect mute
„ Automatic invalid input-detect mute
„ 2-channel I²S input data interface
„ Input and output channel mapping
„ Up to 8 user-programmable biquads per
channel with 28-bit resolution
„ 3 coefficient banks for EQ presets storing with
fast recall via I²C interface
„ 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
„ Variable max power correction for lower
full-power THD
„ Selectable clock input ratio
„ 96 kHz internal processing sample rate, 24 to
28-bit precision
„ Thermal overload and short-circuit protection
embedded
„ Video apps: 576 * f_S input mode supported
„ Fully compatible with STA339BWS.
Table 1.
Device summary
Order code
STA339BW
STA339BWTR
Package
PowerSSO-36 slug down
PowerSSO-36 slug down
Packaging
Tube
Tape and reel
August 2010
Doc ID 15251 Rev 5
1/77
www.st.com
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