TAS5705

TAS5705 www.ti.com ................................................................................................................................................ SLOS549A – JUNE 2008 – REVISED SEPTEMBER 2009 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC Check for Samples: TAS5705 FEATURES 1 23 Audio Input/Output – 20-W Into an 8-Ω Load From an 18-V Supply – Wide Power-Supply Range From (8 V to 23 V) – Efficient Class-D Operation Eliminates Need for Heat Sinks – Requires Only Two Power-Supply Rails – Two Serial Audio Inputs (Four Audio Channels) – Supports 32-kHz–192-kHz Sample Rates (LJ/RJ/I2S) – Headphone PWM Outputs – Subwoofer PWM Outputs Audio/PWM Processing – Independent Channel Volume Controls With 24-dB to –100-dB Range – Soft Mute (50% Duty Cycle) – Programmable Dynamic Range Control – 16 Adaptable Biquads for Speaker EQ – Seven Biquads for Left and Right Channels – Two Biquads for Subwoofer Channel – Adaptive Coefficients for DRC Filters – Programmable Input and Output Mixers – DC Blocking Filters – Loudness Compensation for Subwoofer – Automatic Sample Rate Detection and Coefficient Banking for DRC and EQ General Features – Serial Control Interface Operational Without MCLK – Factory-Trimmed Internal Oscillator Enables Automatic Detection of Incoming Sample Rates – Thermal and Short-Circuit Protection Benefits – EQ: Speaker Equalization Improves Audio Performance – DRC: Dynamic Range Compression. Enables Power Limiting, Speaker Protection, Eas...