AD82588-2x15W Stereo/1x 30W Mono Digital Audio Amplifier with 18 Bands EQ DataSheet
Description AD82588 is a digital audio amplifier capable of driving a pair of 8Ω, 15W or a single 4Ω, 30W operating at 24V supply. AD82588 can provide advanced audio processing capabilities, such as volume control, 18 bands speaker EQ, audio mixing, 3D surround and Dynamic Range Control (DRC). These functions are fully programmable via a simple I2C control interface. Robust protection circuits are provided to protect AD82588 from damage due to accidental erroneous operating condition. AD82588 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. AD82588 is pop free during instantaneous power switch because of its built-in, robust anti-pop circuit. The output stage is flexibly configurable for stereo channel or mono applications.
Features 16/18/20/24-bits input with I2S, Left-alignment and Right-alignment data format PSNR & DR(A-weighting) Loudspeaker: 94dB (PSNR), 103dB (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 stereo at 24V 15W x 2CH into 4Ω @0.17% THD+N Loudspeaker output power for mono at 24V 30W x 1CH into 4Ω @0.095% THD+N Sound processing including: 18 bands parametric speaker EQ Volume control (+24dB~-103dB, 0.125dB/step), Dynamic range control Power Clipping 3D surround sound Channel mixing Automatic Zero-detection mute and noise gate Bass/Treble tone control Bass management crossover filter DC-blocking high-pass filter Anti-pop design 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 Short-circuit protection Over-temperature protection Power saving mode Support initial EEPROM setting
Applications CD and DVD TV audio Car audio Boom-box MP3 docking systems Powered speaker Wireless audio
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