GENERAL DESCRIPTION
IS31AP2111 is a digital audio amplifier capable of driving a pair of 8Ω, 20W operating at 24V supply without external heat-sink or fan requirement with play music.
IS31AP2111 can provide advanced audio processing capabilities, such as volume control, 20 bands speaker EQ, audio mixing, 3D surround and Dynamic Range Control (DRC). These functions are fully programmable via a simple I2C control interface.

FEATURES
• 16/18/20/24-bits input with I2S, Left-alignment and
   Right-alignment data format
• PSNR & DR (A-weighting)
   Loudspeaker: 99dB (PSNR), 104dB (DR) @24V
• Multiple sampling frequencies (FS)
   - 32kHz / 44.1kHz / 48kHz and
   - 64kHz / 88.2kHz / 96kHz and
   - 128kHz / 176.4kHz / 192kHz
• System clock = 64x, 128x, 192x, 256x, 384x,
   512x, 576x, 768x, 1024x Fs
   - 64x~1024x FS for 32kHz / 44.1kHz / 48kHz
   - 64x~512x FS for 64kHz / 88.2kHz / 96kHz
   - 64x~256x FS for 128kHz / 176.4kHz / 192kHz
• Supply voltage
   - 3.3V for digital circuit
   - 10V~26V for loudspeaker driver
• Loudspeaker output power for at 24V
   - 10W × 2CH into 8Ω @0.24% THD+N for stereo
   - 20W × 2CH into 8Ω @0.38% THD+N for stereo
• Sound processing including:
   - 20 bands parametric speaker EQ
   - Volume control (+24dB ~ -103dB, 0.125dB/step),
   - Dynamic range control (DRC)
   - Dual band dynamic range control
   - Power clipping
   - 3D surround sound
   - Channel mixing
   - Noise gate with hysteresis window
   - Bass/Treble tone control
   - DC-blocking high-pass filter
• Anti-pop design
• Short circuit and over-temperature protection
• I2C control interface with selectable device
   address
• Support hardware and software reset
• Internal PLL
• LV Under-voltage shutdown and HV Under-voltage
   detection
• Power saving mode

APPLICATIONS
• TV audio
• Boom-box, CD and DVD receiver, docking system
• Powered speaker
• Wireless audio
•