20-W STEREO DIGITAL AUDIO POWER AMPLIFIER
TAS5708
www.ti.com .......................................................................................................
Description
TAS5708
www.ti.com ........................................................................................................................................................................................... SLOS570 – DECEMBER 2008
20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ/DRC and FEEDBACK
FEATURES
1
Audio Input/Output – 20-W Into an 8-Ω Load From an 18-V Supply
– Wide PVCC Range (10 V to 26 V); 3.3 V Digital Supply
– Supports One Serial Audio Input (8 kHz - 48 kHz Sample Rates) (LJ/RJ/I2S)
– Power-Stage Feedback Allows Operation From Poorly Regulated Power Supplies
Audio/PWM Processing – Factory-Trimmed Internal Oscillator for Automatic Rate Detection
– High-End 32-Bit Data Path Audio Processor
– 14 Biquads for Speaker EQ
– Dynamic Range Control (DRC)
Benefits
– EQ: Speaker Equalization Improves Audio Performance
– DRC: Enables Speaker Protection and Night-Mode Listening.
– Autobank Switching: Preloaded Coefficients for Three Different Sample Rates Eliminates the Need to Update Coefficients When Sample Rate Changes
– Autodetect: Automatically Detects Sample-Rate Changes Eliminating the Need for External Microprocessor Intervention
– Closed-Loop Power Stage: Enables Wide PVCC Operating Range and Reduced Power Supply Ripple Distortion
DESCRIPTION
The TAS5708 is a 20-W, efficient, digital audio power amplifier for driving stereo bridge-tied speakers. A 32-bit datapath eliminates the need for pre-scaling before processing and preserves signal integrity without s...
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