Features
 16/18/20/24-bits input with I2S, Left-alignment
and Right-alignment data format
 PSNR & DR(A-weighting)
Loudspeaker: 96dB (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/2.1CH/Mono configuration
 Loudspeaker output power@24V for stereo
10W x 2CH into 8Ω @0.24% THD+N
15W x 2CH into 8Ω @0.3% THD+N
20W x 2CH into 8Ω @0.38% 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
 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

Description
AD82584 is a digital audio amplifier capable of
driving 15W (BTL) each to a pair of 8Ω load speaker
and 30W (PBTL) to a 4Ω load speaker operating at
24V supply without external heat-sink or fan
requirement with play music. AD82584 is also capable
of driving 4Ω, 10W (SE)x2 + 8Ω, 20W (BTL)x1 at 24V
supply for 2.1CH application.
AD82584 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 AD82584 from damage due to
accidental erroneous operating condition. The full
digital circuit design of AD82584 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. AD82584 is pop free during instantaneous
power on/off or mute/shut down switching because of
its robust built-in anti-pop circuit.