Sanyo LED-22XR10F Service Manual page 32

4、 TAS5711
• Audio Input/Output
–20-W Into an 8-Ω Load From an 18-V Supply
–Wide PVDD Range, From 8 V to 26 V
–Efficient Class-D Operation Eliminates Need for Heatsinks
–One Serial Audio Input (Two Audio Channels)
–2.1 Mode (2 SE + 1 BTL)
–2.0 Mode (2 BTL) –Single-Filter PBTL Mode Support –I2C Address Selection Pin (Chip Select)
–Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S) • Audio/PWM Processing
–Independent Channel Volume Controls With 24-dB to Mute –Separate Dynamic Range Control for
Satellite and Subchannels
–21 Programmable Biquads for Speaker EQ and Other Audio Processing Features
–Programmable Coefficients for DRC Filters
–DC Blocking Filters
–Support for 3D Effects
• General Features
–Serial Control Interface Operational Without MCLK
–Factory-Trimmed Internal Oscillator for Automatic Rate Detection –Surface Mount, 48-Pin, 7-mm ×
7-mm HTQFP Package
–Thermal and Short-Circuit Protection
–Support for AD or BD Mode
• Benefits
–Up to 90% Efficient
–AD and BD Filter Mode Support
–SNR: 106 dB, A-Weighted
–EQ: Speaker Equalization Improves Audio
Performance
–DRC: Dynamic Range Compression. Can
Be Used As Power Limiter. Enables
Speaker Protection, Easy Listening, Night-Mode Listening. –Separate DRC for Satellite and Subchannels
–Autobank Switching: Preload Coefficients for Different Sample Rates. No Need to Write new Coefficients
to the Part WhenSample Rate Changes
–Autodetect: Automatically Detects Sample-Rate Changes. No Need for External Microprocessor
Intervention
• Requires Only 3.3 V and PVDD