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STA339BW bảng dữ liệu(PDF) 1 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  2.1-channel high-efficiency digital audio system
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STA339BW bảng dữ liệu(HTML) 1 Page - STMicroelectronics

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August 2010
Doc ID 15251 Rev 5
1/77
77
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 +
1x20 W into 2x4
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
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 * fS input mode supported
Fully compatible with STA339BWS.
PowerSSO-36 (slug down)
Table 1.
Device summary
Order code
Package
Packaging
STA339BW
PowerSSO-36 slug down
Tube
STA339BWTR
PowerSSO-36 slug down
Tape and reel
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