AD82128
Description
AD82128 is a digital audio amplifier capable of driving 25W (31W peak power) each to a pair of 8Ω load speaker (BTL) and 50W (62W peak power) to a 4Ω load speaker (PBTL) operating at 24V supply without external heat-sink or fan requirement with play music. AD82128 provides advanced audio processing functions, such as volume control, 32 EQ bands, audio mixing, 3D surround sound and Dynamic Range Control (DRC).
Key Features
- 16/18/20/24-bits input with I2S, Left-alignment, Right-alignment and TDM data format
- PSNR & DR(A-weighting) Loudspeaker: 107dB (PSNR), 108dB (DR)@24V
- Multiple sampling frequencies (Fs) 8kHz, 16kHz, 32kHz/44.1kHz/48kHz and 64kHz/88.2kHz/96kHz
- System clock = 64x, 128x, 192x, 256x, 384x, 512x, 576x, 768x, 1024x Fs BCLK system: 64x Fs for 32kHz/44.1kHz/48kHz 64x Fs for 64kHz/88.2kHz/96kHz
- Supply voltage 3.0~3.6V for DVDD 1.65~3.6V for DVDDIO 4.5~26V for PVDD
- Supports 2.0CH/Mono configuration
- Loudspeaker output power@12V for stereo 8W x 2CH into 8Ω @ 1% THD+N 15W x 2CH into 4Ω @ 1% THD+N
- Loudspeaker output power@24V for stereo 31W x 2CH into 8Ω <1% THD+N
- Sound processing including： 32 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 DC-blocking high-pass filter Pre-scale/post-scale Post-Boost (+48dB) I2S output with user programmed gain (+24dB~mute)
- Anti-pop design
