AD82584D-2x25W Stereo Digital Audio Amplifier

AD82584D-2x25W Stereo/1x 50W Mono Digital Audio Amplifier With 20 bands EQ Functions, DRC DataSheet

AD82584D-User manual

AD82584D layout guide

AD82584D_DemoBoard

AD82584_GUI_USER_MANUAL

Description
AD82584D is a digital audio amplifier capable of driving 25W (BTL) each to a pair of 8 load speaker and 50W (PBTL) to a 4 load speaker operating at 24V supply without external heat-sink or fan requirement with play music.
AD82584D can provide advanced audio processing functions, such as volume control, 20 EQ bands, audio mixing, 3D surround sound and Dynamic Range Control (DRC). These are fully programmable via a simple I2C control interface. Robust protection circuits are provided to protect AD82584D from damage due to accidental erroneous operating condition. The full digital circuit design of AD82584D is more tolerant to noise and PVT (Process, Voltage, and Temperature) variation than the analog class-AB or class-D audio amplifier counterpart implemented by analog circuit design. AD82584D is pop free during instantaneous power on/off or mute/shut down switching because of its robust built-in anti-pop circuit.

Features
  16/18/20/24-bits input with I2S, Left-alignment and Right-alignment data format
  PSNR & DR(A-weighting) Loudspeaker: 98dB (PSNR), 108dB (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
  Supports 2.0CH/Mono configuration
  Loudspeaker output power@24V for stereo
10W x 2CH into 8 @0.09% THD+N
15W x 2CH into 8 @0.15% THD+N
25W x 2CH into 8 @0.28% THD+N
  Sound processing including：
20 bands parametric speaker EQ
Volume control (+24dB~-103dB, 0.125dB/step)
Dynamic range control
Dual Band Dynamic range control
Power Clipping
3D surround sound
Channel mixing
Noise gate with hysteresis window
Bass/Treble tone control
Bass management crossover filter
DC-blocking high-pass filter
  Anti-pop design
  Short circuit and over-temperature protection
  Supports I2C control without MCLK
  I2C control interface with selectable device address
  Support BCLK system

  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