EUA2811.pdf• Audio Input/Output
Wide Power Supply Voltage: 8 V to 26 V
Digital Supply: 3.3V
20W/ch into an 8-Ω Load from an 18-V Supply
40W into an 4-Ω Mono load from an 18-V supply
Supports 8 kHz - 192 kHz Sample Rates Serial
Audio Input (LJ/RJ/I2S)
Bidirectional I2C interface
Slave Address Select Pin
Support 3-wire I2S Mode (No MCLK Required)
Support BTL and PBTL Configuration l
• Audio Processing
DC Blocking Filters
Channel Volume Control 24 dB to mute
20 Biquads for Speaker EQ
Programmable 3-Band Automatic Gain
Limiting (AGL)
3D Effects
• Benefits
EQ: Speaker Equalization Improves Audio Performance
DRC: Enables Speaker Protection and Night-Mode Listening
Soft Mute
Auto detect: Automatically Detects Sample-rate Changes
Thermal and short circuit protection
• Available in TQFP-48 (EP) Package
• RoHS compliant and 100% lead(Pb)-free Halogen-Free
• Audio Input/Output
20-W Into an 8- Load From an 18-V Supply
Wide PVDD Range, From 8 V to 26 V
Efficient Class-D Operation Eliminates Need for Heatsinks
Requires Only 3.3 V and PVDD
One Serial Audio Input (Two Audio Channels)
Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
• Audio/PWM Processing
Independent Channel Volume Controls With 24 dB to Mute
Soft Mute (50% Duty Cycle)
Programmable Dynamic Range Control
14 Programmable Biquads for Speaker EQ and Other Audio
Processing Features
Programmable Coefficients for DRC Filters
DC Blocking Filters
•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
•Benefits
EQ: Speaker Equalization Improves Audio Performance
DRC: Dynamic Range Compression. Can Be Used As
Power Limiter.
Enables Speaker Protection, Easy Listening, Night-Mode
Listening
Autobank Switching: Preload Coefficients for Different
Sample Rates.
No Need to Write New Coefficients to the Part When
Sample Rate Changes.
Autodetect: Automatically Detects Sample-Rate Changes.
No Need for External Microprocessor Intervention
