STA339BWS_11 Datasheet, PDF (1/76 Pages) STMicroelectronics – 2.1-channel 40-watt high-efficiency digital audio system Sound Terminal®

STA339BWS
2.1-channel 40-watt high-efficiency digital audio system
Sound Terminal^®
Features
■ Wide-range supply voltage, 4.5 V to 21.5 V
■ Three power output configurations:
– 2 channels of ternary PWM
(2 x 20 W into 8 Ω at 18 V) + PWM output
– 2 channels of ternary PWM
(2 x 20 W into 8 Ω at 18 V) + ternary stereo
line-out
– 2.1 channels of binary PWM (left, right,
LFE) (2 x 9 W into 4 Ω +1 x 20 W into 8 Ω
at 18 V)
■ FFX with 100-dB SNR and dynamic range
■ Scalable FFX modulation index
■ 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 DRCs configurable as a
dual-band anticlipper (B²DRC) or as
independent limiters/compressors
■ EQ-DRC for DRC based on filtered signals
■ Dedicated LFE processing for bass boosting
■ Audio presets:
– 15 preset crossover filters
– 5 preset anticlipping modes
– Preset nighttime listening mode
■ Individual channel soft/hard mute
PowerSSO-36
with exposed pad down (EPD)
■ Independent channel volume and DSP bypass
■ I²S input data interface
■ Input and output channel mapping
■ Automatic invalid input-detect mute
■ Up to 8 user-programmable biquads/channel
■ Three coefficient banks for storing EQ presets
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
■ Selectable clock input ratio
■ 96-kHz internal processing sample rate
■ Thermal overload and short-circuit protection
technology
■ Video apps: 576 x f_S input mode supported
■ Pin and SW compatible with STA333BW,
STA339BW, STA559BW and STA559BWS
Table 1. Device summary
Order code
STA339BWS
STA339BWS13TR
Package
PowerSSO-36 EPD
PowerSSO-36 EPD
Packaging
Tube
Tape and reel
November 2011
Doc ID 15276 Rev 5
1/76
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