Features
Supply voltage
3.3V for digital circuit
8V~26V for loudspeaker driver
Supports 2.0CH/Mono configuration
Loudspeaker output power@12V for stereo
7W x 2CH into 8Ω <1% THD+N
10W x 2CH into 4Ω <1% THD+N
Loudspeaker output power@18V for stereo
15W x 2CH into 8Ω <1% THD+N
Loudspeaker output power@24V for stereo
20W x 2CH into 8Ω <1% THD+N
16/18/20/24-bits input with I2
S, Left-alignment
and Right-alignment data format
 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
MCLK system:
64x~1024x Fs for 32kHz / 44.1kHz / 48kHz
64x~512x Fs for 64kHz / 88.2kHz / 96kHz
64x~256x Fs for 128kHz / 176.4kHz / 192kHz
BCLK system:
64xFs for 32kHz / 44.1kHz / 48kHz
64xFs for 64kHz / 88.2kHz / 96kHz
64xFs for 128kHz / 176.4kHz / 192kHz
Sound processing including：
30 bands parametric speaker EQ
Volume control (+24dB~-103dB, 0.125dB/step)
Dynamic range control
Three Band plus post Dynamic range control
Power Clipping
Programmed 3D surround sound
Channel mixing
Noise gate with hysteresis window
Bass/Treble tone control
DC-blocking high-pass filter
Pre-scale/post-scale
Supports I2C control without clock
I
2C control interface with selectable device
address
I
2
S output with selectable Audio DSP point
Support hardware and software reset
Internal PLL
Anti-pop design
Level meter and power meter
LV Under-voltage shutdown and HV Under-voltage
detection
 Over voltage protection
Short circuit and over-temperature protection

Applications
TV audio

Description
AD82088 is a digital audio amplifier capable of
driving 20W (BTL) each to a pair of 8Ω load speaker
and 40W (PBTL) to a 4Ω load speaker operating at
24V supply without external heat-sink or fan
requirement with play music. AD82088 provides
advanced audio processing functions, such as volume
control, 30 EQ bands, audio mixing, 3D surround
sound and Dynamic Range Control (DRC). These are
fully programmable via a simple I
2C control interface.
Robust protection circuits are provided to protect
AD82088 from damage due to accidental erroneous
operating condition. The full digital circuit design of
AD82088 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. AD82088 is pop
free during instantaneous power on/off or mute/shut
down switching because of its robust built-in anti-pop
circuit